--- Created: 2026/11/01 07:58 share_link: https://notesx.azraftaohid.me/z3s8u4jc share_updated: 2026-11-03T09:25:41+06:00 --- # EWCE 471 (EWC 471): Question Set-to-Lecture Matching & Strategic Lecture Skip Guide > **Exam Rule Summary:** > > - **Total Marks:** `180` (`90` marks in **Section A** + `90` marks in **Section B**). > - **Total Question Sets to Answer:** `6` sets out of `8` (`3` from Section A + `3` from Section B; **`30` marks per set**). > - **Compulsory Sets:** **Question 1** (Section A, `30` marks) and **Question 5** (Section B, `30` marks) are **compulsory**. *(Note: In 2019, `Q7` was designated compulsory in Section B instead of `Q5`, though its content was the exact same Revetment/Seawall Design set that appears as `Q5` in 2021–2025; in the 2021/2022 online exam mode, `Q4` and `Q8` Viva Voce were also compulsory).* > - **Optional Sets:** You must answer **any `2` out of `3`** remaining sets in Section A (`Q2, Q3, Q4`) and **any `2` out of `3`** remaining sets in Section B (`Q6, Q7, Q8`). > - **Core Implication:** Because you must answer **all subquestions (`a, b, c...`)** within any chosen set, a lecture (or slide block) can be safely skipped **if and only if**: > 1. It **never appears in Compulsory `Q1` or `Q5`**, and > 2. Within its section, it is **consistently isolated inside at most `1` optional set** that you choose to leave out, leaving the other `2` optional sets (`60` marks) 100% answerable. --- ## 1. Executive Summary: Which Lectures Can Be Safely Skipped? Across all 6 past exams ([2019](Question%20Paper%20-%20EWC%20471,%202019.pdf), [2021](Question%20Paper%20-%20EWC%20471,%202021.pdf), [2022](Question%20Paper%20-%20EWC%20471,%202022.pdf), [2023](Question%20Paper%20-%20EWC%20471,%202023.pdf), [2024](Question%20Paper%20-%20EWC%20471,%202024.pdf), and [2025](Question%20Paper%20-%20EWC%20471,%202025.pdf))—and especially the recent papers (`2023–2025`)—both faculty members follow a highly predictable **"Fixed Compulsory Anchor + Partitioned Optional Sets"** blueprint. > **Important Note on Section Swaps (`SA/` vs. `SB/`):** > > - In **2019, 2021, 2022, 2024, and 2025** (`5` out of `6` exams), **Exam Section A (`Q1–Q4`)** corresponds to **`EWCE 471/SA/`** (`Lec 01` to `Lec 17-18`), while **Exam Section B (`Q5–Q8`)** corresponds to **`EWCE 471/SB/`** (`Topic 01` to `Topic 08`). > - In **2023**, the two sections were swapped on the question paper (`SB/` in **Section A `Q1–Q4`** and `SA/` in **Section B `Q5–Q8`**). > - Because each faculty's 4-set structure (`1` Compulsory + `3` Optional) moves as a complete block, the skip strategies below remain **100% valid regardless of which section is labeled A or B**. ### Quick Verdict Table (All `17` Lecture/Topic Folders / `690` Total Pages in `SA/` & `SB/`) | Category | Lecture / Topic Modules & Slide Ranges | Action Recommendation | | :------------------------------------------------------------------------------------------ | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **1. Zero-Appearance / Redundant / Obsolete Material (Skip 100% Regardless of Set Choice)** | • **[SA / Lec 04](SA/Lec%2004/EWC471_lecture%204.pdf) (`pp. 6–12`)** (Full Laplace PDE, Velocity Potential $\phi$, & Boundary Condition Derivations — `7` pages)
• **[SA / Lec 11-12](SA/Lec%2011-12/EWC471_lecture%2011%20and%2012.pdf) (`pp. 37–49`)** (Wave Runup & Overtopping on Slopes — `13` pages)
• **[SA / Lec 07-08](SA/Lec%2007-08/EWC471_lecture%207%20and%208.pdf) (`pp. 19–25`)** (34-Wave Statistical Train Calculation $H_s, H_{1/10}, H_{\text{rms}}$ — `7` pages)
• **[SA / Lec 13-14](SA/Lec%2013-14/EWC471_lecture%2013%20and%2014.pdf) (`pp. 19–29`)** (Minikin Breaking & Broken Wave Forces on Vertical Walls — `11` pages)
• **[SB / Topic 01](SB/Topic%2001/EWCE%20471_LEC-01%20&%2002_Introduction%20to%20Coastal%20Engineering,%20Coast%20and%20Coastal%20Features.pdf) (`pp. 2–13, 32–42`)** (Lake vs. Sea vs. Ocean & Sea Level Rise — `23` pages; `pp. 14–31` coastal features already in `SA / Lec 17-18`)
• **[SB / Topic 04 Duplicate Deck](SB/Topic%2004/EWCE%20471_LEC%2013-14_Coastal%20Processes%20and%20Sediment%20Transport%20Copy.pdf)** (`45` pages) & **[SB / Topic 06 Duplicate Deck](SB/Topic%2006/EWCE%20471_LEC%2013-14_Tidal%20Theories%20and%20Tide%20Prediction.pdf)** (`30` pages)
• **[SB / Topic 07 USACE Manual](SB/Topic%2007/EWCE%20471_DESIGN%20OF%20REVETMENTS,%20SEA%20WALL,%20BULKHEADS.pdf) (`94` of `110` pages)** (Keep **only** `pp. 17–25` Hudson/thickness/toe/filter formulas, `pp. 92–97` Appendix C Quarrystone Revetment example, and `pp. 102–107` Appendix E Rubble-Mound Seawall example) | **SKIP IMMEDIATELY (`230` pages saved).**
• `SA / Lec 04 (pp. 6–12)` and `SA / Lec 11-12 (pp. 37–49)` have **`0` marks across all 6 exams (`2019–2025`)**.
• `SA / Lec 13-14 (pp. 19–29)` and `SB / Topic 01` have **`0` marks in 2021, 2023, 2024, and 2025** (100% of recent vertical-wall wave force problems are Non-Breaking Miche–Rundgren on `pp. 3–18`).
• `SB / Topic 04` and `SB / Topic 06` each contain two near-identical PDF slide decks; read only one per folder. | | **2. Section A (`SA/` Faculty) Optional Set Skip (Pick 1 of 2 Strategies)** | • **Option SA-1 (Recommended — Skip `Subsurface Pressure Gauge & Wave Setup Math` Set):** Skip **[SA / Lec 07-08](SA/Lec%2007-08/EWC471_lecture%207%20and%208.pdf) (`pp. 7–11`: Subsurface Pressure Gauge Math)** + **[SA / Lec 11-12](SA/Lec%2011-12/EWC471_lecture%2011%20and%2012.pdf) (`pp. 29–36`: Wave Setup/Set-down Math)** + **Missing `SA / Lec 02` & `Lec 15-16`** (`13` core pages + missing lectures saved).
• **Option SA-2 (Alternative — Skip `Shoaling/Refraction/Breaking Nomogram Math & Green's Law` Set):** Skip **[SA / Lec 09-10](SA/Lec%2009-10/EWC471_lecture%209%20and%2010.pdf) (`pp. 4–24`: Shoaling/Refraction Math & Green's Law)** + **[SA / Lec 11-12](SA/Lec%2011-12/EWC471_lecture%2011%20and%2012.pdf) (`pp. 8–19`: Breaking Wave Nomogram Math)** (`33` core pages saved). | **SKIP 1 OPTIONAL SET CLUSTER (`13–33` core pages saved).**
• **Option SA-1** is recommended because `SA / Lec 09-10` + `Lec 11-12 (pp. 1–28)` gives you `100%` of Set `Q3` in 2025 (`30m`), Set `Q4` in 2024 (`30m`), Set `Q7` in 2023 (`30m`), and Set `Q2` in 2021 (`30m`), while avoiding the unmapped `Lec 02` Coral question in `2025 Q4c` and Subsurface Pressure math in `2024 Q3b` / `2023 Q6b`!
• Neither Subsurface Pressure math (`Lec 07-08 pp. 7–11`) nor Shoaling/Breaking nomogram math (`Lec 09-10` / `Lec 11-12 pp. 8–19`) has **ever** appeared in Compulsory `Q1`! | | **3. Section B (`SB/` Faculty) Optional Set Skip (Pick 1 of 2 Strategies)** | • **Option SB-1 (Recommended — Skip All `Tides, Tidal Cycles, Tidal Theories & Tide Prediction`):** Skip **[SB / Topic 02](SB/Topic%2002/EWCE%20471_LEC-02-04_Tides%20and%20Currents.pdf)** (all `58` pages) + **[SB / Topic 06](SB/Topic%2006/EWCE%20471_LEC%2014-15_Tidal%20Theories%20and%20Tide%20Prediction.pdf)** (all `61` pages across both files = **`119` pages saved!**). Answer `Q5` (Compulsory) + `Deltas/BDP 2100` Set (`Topic 05`) + `Structures/Erosion/Ports` Set (`Topic 07 + Topic 04 + Topic 03`).
• **Option SB-2 (Alternative — Skip All `Deltas & Bangladesh Delta Plan [BDP] 2100`):** Skip **[SB / Topic 05: Deltas](SB/Topic%2005/EWCE%20471_LEC%2011-12_Deltas%20and%20Its%20Characteristics%20(1).pdf)** (`36` pages) + **[SB / Topic 05: BDP 2100](SB/Topic%2005/EWCE%20471_LEC%2013%20_Bangladesh%20Delta%20Plan%20(BDP)%202100.pdf)** (`41` pages = **`77` pages saved!**). Answer `Q5` (Compulsory) + `Tides/Harbors` Set (`Topic 02 + Topic 06 + Topic 03`) + `Structures/Erosion/Ports` Set (`Topic 07 + Topic 04 + Topic 03`). | **SKIP 1 FULL TOPIC CLUSTER (`77–119` pages saved).**
• **Zero-Leakage Guarantee:** Neither **`SB / Topic 02`**, **`SB / Topic 05`**, nor **`SB / Topic 06`** has **ever (`0/6` exams)** appeared in Compulsory `Q5`!
• In `2025`, `Topic 05` is 100% isolated in `Q6 (30m)` and `Topic 02/06` is 100% isolated in `Q7 (30m)`.
• In `2024`, `Topic 02/03` is 100% isolated in `Q6 (30m)` and `Topic 05` is 100% isolated in `Q7 (30m)`. | | **4. Must-Study Compulsory Anchors (`Q1` & `Q5`)** | • **Sec A (`Q1` — `SA/` Faculty):** **[SA / Lec 13-14](SA/Lec%2013-14/EWC471_lecture%2013%20and%2014.pdf) (`pp. 2–18`: Non-Breaking Wave Forces — `21–24m` in `2024 Q1b` & `2025 Q1b`)**, **[SA / Lec 05-06](SA/Lec%2005-06/Corrected%20EWC471_lecture%205%20and%206%20.pdf) (`24`p: Linear Wave $C, L, u, w, a_x, a_z, \xi, \zeta, E, P$ — in `6/6` exams!)**, **[SA / Lec 17-18](SA/Lec%2017-18/EWC471_lecture%2017%20and%2018.pdf) (Coastal Zone, Features & Estuaries — in `Q1` in `5/6` exams)**, **[SA / Lec 03](SA/Lec%2003/EWC471_lecture%203.pdf) (`pp. 6–29`)**, **[SA / Lec 07-08](SA/Lec%2007-08/EWC471_lecture%207%20and%208.pdf) (`pp. 2–6, 12–18`: Group Velocity & Wave Theories)**.
• **Sec B (`Q5` — `SB/` Faculty):** **[SB / Topic 07](SB/Topic%2007/EWCE%20471_LEC%2016-17_Types%20and%20Functions%20of%20Coastal%20Structures.pdf) & [Topic 08](SB/Topic%2008/Graph%20for%20Seawall%20Design.pdf) (Coastal Structures + Quarrystone Revetment & Seawall Design — `15–30m` in Compulsory `Q5` in `5/6` exams!)** + **[SB / Topic 04](SB/Topic%2004/EWCE%20471_LEC%2008-10_Coastal%20Processes%20and%20Sediment%20Transport.pdf) (Coastal Processes, Erosion & Longshore Transport $I_l, Q_l$ Math — `15m` in `2025 Q5a,b` and `18m` in `2024 Q8a,b`)**. | **DO NOT SKIP.**
• These modules account for **100% of Compulsory `Q1` and `Q5`**, AND simultaneously provide **100% of Optional Set `Q2` in Section A** (`30m`) plus **67%–100% of Optional Set `Q8` in Section B** (`20–30m`)! | --- ## 2. Complete Set-by-Set Matrix Across All 6 Past Exams (2019–2025) Because the two sections swapped labels in `2023`, the tables below align all 6 exams by **Faculty Curriculum (`SA/` vs. `SB/`)** so you can see the exact recurring set structure (`30` marks per set). ### 2.1 `SA/` Faculty Section: Set-by-Set Decomposition (`2019–2022 & 2024–2025 Sec A`; `2023 Sec B`) > **Curriculum Scope:** `EWCE 471/SA/` `Lec 01`, `Lec 03`, `Lec 04`, `Lec 05-06`, `Lec 07-08`, `Lec 09-10`, `Lec 11-12`, `Lec 13-14`, `Lec 17-18` (`261` pages across `9` folders). | Exam Year & Section | **Compulsory Set (`30m`)**
*(`Q1` in 2019–22, 24–25; `Q5` in 2023)* | **Optional Set Archetype 1 (`30m`)**
*(Linear Wave $C, L, u, w, a_x, a_z$ & Orbital Motion)* | **Optional Set Archetype 2 (`30m`)**
*(Shoaling, Refraction, Green's Law & Breaking Nomograms)* | **Optional Set Archetype 3 (`30m`)**
*(Subsurface Pressure / Wave Setup / Wave Forces / Special)* | | :---: | :--- | :--- | :--- | :--- | | **2025**
*(Sec A: `Q1–Q4`)* | **Q1 (Compulsory — 30m):**
• `1a` (09m): **SA Lec 17-18** *(Define Coastal zone, Estuary, Tidal flats)*
• `1b` (21m): **SA Lec 13-14** *(Non-breaking wave total force & moment on vertical wall for crest & trough)* | **Q2 (Optional — 30m):**
• `2a` (10m): **SA Lec 03 / 05-06** *(Draw & differentiate water particle displacements in shallow vs. deep water)*
• `2b` (15m): **SA Lec 05-06** *(Find wave celerity $C$ & wavelength $L$ at $d = 200, 30, 2\text{ m}$)*
• `2c` (05m): **SA Lec 09-10** *(Necessity of studying wave transformation)* | **Q3 (Optional — 30m):**
• `3a` (05m): **SA Lec 17-18** *(Characteristics of mixed estuarine systems)*
• `3b` (20m): **SA Lec 11-12 / 09-10** *(Estimate $H_b, d_b$ & breaker type on $1:10$ slope using nomographs)*
• `3c` (05m): **SA Lec 11-12** *(Significance of wave set-up in coastal water rise)* | **Q4 (Optional — 30m):**
• `4a` (10m): **SA Lec 13-14** *(Pressure distribution for non-breaking wave crest & trough on wall)*
• `4b` (15m): **SA Lec 11-12** *(Calculate set-down at breaker point & setup at shoreline)*
• `4c` (05m): *Missing SA Lec 02 (Conditions required for coral survival)* | | **2024**
*(Sec A: `Q1–Q4`)* | **Q1 (Compulsory — 30m):**
• `1a` (06m): **SA Lec 07-08 / 03** *(Define group velocity; pure oscillatory vs. finite-amplitude waves)*
• `1b` (24m): **SA Lec 13-14** *(Non-breaking wave forces & moments on both sides of wall with unequal SWL & critical conditions)* | **Q2 (Optional — 30m):**
• `2a` (08m): **SA Lec 09-10 / 11-12** *(Short notes: Wave refraction, Shoaling, Plunging, Surging)*
• `2b` (10m): **SA Lec 05-06** *(Find wave celerity $C$ & wavelength $L$ at $d = 160\text{ m}$ & $2.5\text{ m}$)*
• `2c` (12m): **SA Lec 05-06** *(Find local velocities $u, w$, accelerations $a_x, a_z$ & displacements $\xi, \zeta$)* | **Q4 (Optional — 30m):**
• `4a` (06m): **SA Lec 09-10** *(Green's Law & Tsunami height calculation at $1\text{ m}$ depth)*
• `4b` (15m): **SA Lec 09-10** *(Wave shoaling calculation from deep water to $8\text{ m}$ and $6\text{ m}$ depth)*
• `4c` (03m): **SA Lec 13-14** *(Classify wave force problems)*
• `4d` (06m): **SA Lec 17-18** *(Sketch typical cross-shore beach profile)* | **Q3 (Optional — 30m):**
• `3a` (08m): **SA Lec 03 / 05-06** *(Sketch elliptical vs. circular particle paths)*
• `3b` (12m): **SA Lec 07-08** *(Subsurface pressure gauge wave height calculation)*
• `3c` (05m): **SA Lec 07-08** *(Calculate group velocity $C_g$ at $200\text{ m}$ & $3\text{ m}$)*
• `3d` (05m): **SA Lec 11-12 / 03** *(Explain why waves break)* | | **2023**
*(Sec B: `Q5–Q8`)* | **Q5 (Compulsory — 30m):**
• `5a` (06m): **SA Lec 17-18** *(Waves as prime movers for littoral processes)*
• `5b` (08m): **SA Lec 03 / 07-08** *(Swell vs. seiche; pure oscillatory vs. finite-amplitude)*
• `5c` (10m): **SA Lec 05-06** *(Find local horizontal & vertical velocities $u, w$)*
• `5d` (06m): **SA Lec 07-08** *(Group velocity $C_g$ & relation with $C$)* | **Q6 (Optional — 30m):**
• `6a` (10m): **SA Lec 11-12** *(Nearshore waves & current system with sketches)*
• `6b` (10m): **SA Lec 07-08** *(Subsurface pressure gauge wave height calculation)*
• `6c` (10m): **SA Lec 03 / 05-06** *(Water particle displacement from deep to shallow water with sketches)* | **Q7 (Optional — 30m):**
• `7a` (06m): **SA Lec 11-12** *(Why waves break & why common in shallow water)*
• `7b` (08m): **SA Lec 11-12 / 03** *(Short notes: Spilling, Surging, Wave Steepness, Wave setup)*
• `7c` (12m): **SA Lec 09-10** *(Wave shoaling & refraction height at $8.5\text{ m}$ & $6\text{ m}$)*
• `7d` (04m): **SA Lec 11-12** *(Wave setup & surf-zone flooding)* | **Q8 (Optional — 30m):**
• `8a` (05m): **SA Lec 09-10** *(Green's Law theoretical $\infty$ vs. real wave fate)*
• `8b` (20m): **SA Lec 13-14** *(Non-breaking wave static, dynamic & total force and moment on vertical wall)*
• `8c` (05m): **SA Lec 04** *(Basic assumptions of Small-Amplitude Wave Theory)* | | **2022**
*(Sec A: `Q1–Q4`)* | **Q1 (Compulsory — 30m):**
• `1a` (07m): **SA Lec 01 / 15-16** *(BD coastal zone description & CPP)*
• `1b` (07m): **SA Lec 17-18** *(Shoreline as dynamic interface)*
• `1c` (16m): **SA Lec 05-06** *(Calculate $L, C, a_x, a_z$, Energy $E$ & Power $P$)* | **Q2 (Optional — 30m):**
• `2a` (07m): **SA Lec 11-12 + 17-18** *(Rip currents danger; barrier island & dune formation)*
• `2b` (07m): **SA Lec 07-08** *(Airy, Stokes, Cnoidal & Solitary wave theories)*
• `2c` (16m): **SA Lec 13-14** *(Broken wave force & moment on vertical breakwater)* | **Q3 (Optional — 30m):**
• `3a` (07m): *Missing SA Lec 15-16 (Ring of Fire & DART)*
• `3b` (07m): **SA Lec 11-12** *(Types of wave breaking with sketches)*
• `3c` (16m): **SA Lec 07-08** *(34-wave train statistics: $H_s, T_s, H_{1/10}, H_{\text{rms}}$)* | **Q4 (Optional / Online Viva — 30m):**
• `4a, 4b, 4c` (30m): *Missing SA Lec 15-16 (Storm surge definitions, Langhaar procedure & shelf surge calculation)* | | **2021**
*(Sec A: `Q1–Q4`)* | **Q1 (Compulsory — 30m):**
• `1a` (10m): **SA Lec 17-18** *(Sketch Coastline, Tombolo, Barrier Spit, Headland, Dune)*
• `1b` (20m): **SA Lec 05-06** *(Calculate $C, L, u, w$, Energy $E$ & Power $P$)* | *(Included in Compulsory `Q1b`)* | **Q2 (Optional — 30m):**
• `2a` (10m): **SA Lec 09-10** *(Wave refraction when siting a structure)*
• `2b` (20m): **SA Lec 11-12 / 09-10** *(Shoaling on $1:5$ slope: find $H_b, d_b$ & breaker type)* | **Q3 (Optional — 30m):**
• `3a` (10m): **SA Lec 01 / 15-16** *(BD cyclone & storm surge management)*
• `3b` (20m): **SA Lec 13-14** *(Non-breaking wave force magnitude & location on vertical breakwater)*
*(Plus `Q4` Compulsory Online Viva — 30m)* | | **2019**
*(Sec A: `Q1–Q4`)* | **Q1 (Compulsory — 30m):**
• `1a` (05m): **SA Lec 01** *(Coastal engg def)*
• `1b` (05m): **SA Lec 04** *(Airy assumptions)*
• `1c` (05m): **SA Lec 03** *(Seiche & Tsunami)*
• `1d` (05m): **SA Lec 13-14** *(Minikin diagram)*
• `1e` (05m): **SA Lec 09-10** *(Diffraction)*
• `1f` (05m): **SA Lec 17-18** *(Estuaries)* | **Q2 (Optional — 30m):**
• `2a` (06m): **SA Lec 17-18** *(Beach profile sketch)*
• `2b` (06m): *Missing SA Lec 02 (Secondary coasts)*
• `2c` (08m): **SA Lec 05-06** *(Calculate $u, w$)*
• `2d,e` (10m): **SA Lec 03 / 05-06** *(Deep vs. shallow waves & velocity sketch)* | **Q4 (Optional — 30m):**
• `4a` (05m): **SA Lec 13-14** *(Classify wave force problems)*
• `4b` (07m): **SA Lec 07-08** *(Group velocity & energy conservation)*
• `4c` (10m): **SA Lec 03** *(Wave parameters)*
• `4d` (08m): **SA Lec 05-06** *(Calculate $C, L$ at $220\text{ m}$ & $2.2\text{ m}$)* | **Q3 (Optional — 30m):**
• `3a` (05m): **SA Lec 13-14** *(Morison pile equation)*
• `3b` (05m): **SA Lec 01** *(Oceanology info)*
• `3c` (10m): **SA Lec 13-14** *(Non-breaking wave force & moment)*
• `3d` (10m): **SA Lec 11-12 / 17-18 / 03 / 07-08** *(Wave breaking, Tombolo, Sinusoidal profile, Subsurface pressure)* | --- ### 2.2 Key Structural Patterns Discovered in the `SA/` Section (`Section A`) ```mermaid flowchart TD subgraph SecA["SA/ Faculty Section Architecture (2024 & 2025 Section A)"] Q1["Q1 (Compulsory — 30m)
• 1a (6–9m): SA Lec 17-18 (Coastal Zone, Features, Estuaries — 2019, 2021, 2022, 2023, 2025)
OR SA Lec 07-08 / 03 (Group Velocity & Wave Theories — 2023, 2024)
• 1b (21–24m): SA Lec 13-14 pp. 3–18 (Non-Breaking Wave Force & Moment on Vertical Wall — 2024, 2025)
(Swaps with SA Lec 05-06 Linear Wave C, L, u, w, E, P Math in 2021–2023)"] Q2["Set Q2 (Optional — 30m): Linear Wave Theory & Kinematics Lock
• 2a (8–10m): SA Lec 03 & 05-06 (Deep vs. Shallow Orbital Motion OR Wave Transformation Notes)
• 2b (10–15m): SA Lec 05-06 pp. 1–16 (Wave Celerity C & Wavelength L across Depths — 6/6 Exams!)
• 2c (5–12m): SA Lec 05-06 pp. 7–16 (Local Velocities u, w, Accelerations & Displacements) OR SA Lec 09-10"] Q3["Set Archetype 2 (Q3 in 2025; Q4 in 2024; Q7 in 2023; Q2 in 2021)
• 12–20m Math: SA Lec 09-10 & Lec 11-12 pp. 8–19 (Wave Shoaling, Refraction & Breaking Height/Depth/Type Nomograms)
• 6–10m Theory: Green's Law (SA Lec 09-10 p. 6), Estuaries/Beach Profile (SA Lec 17-18), Wave Breaking & Setup Concept (SA Lec 11-12)"] Q4["Set Archetype 3 (Q4 in 2025; Q3 in 2024; Q6 in 2023)
• 10–15m Math: SA Lec 07-08 pp. 7–11 (Subsurface Pressure Gauge Wave Height — 2023 Q6b, 2024 Q3b)
OR SA Lec 11-12 pp. 29–36 (Wave Setup & Set-down Math — 2025 Q4b)
• Remaining Marks: Non-breaking pressure diagram (2025 Q4a), Coral survival (2025 Q4c), Group velocity math (2024 Q3c)"] end ``` 1. **The Two Mandatory Numerical Pillars of `SA/` (`SA / Lec 05-06` and `SA / Lec 13-14 pp. 3–18`):** - **Pillar 1 — Linear Wave Mechanics (`SA / Lec 05-06`, 24 pages):** Calculating wave celerity ($C$), wavelength ($L$), local particle velocities ($u, w$), accelerations ($a_x, a_z$), displacements ($\xi, \zeta$), wave energy ($E$), and wave power ($P$) has appeared in **`6 out of 6` exams (`100%`)**, always worth **`15–22` marks**, and always placed in either **Compulsory `Q1`** (`2021 Q1b`, `2022 Q1c`, `2023 Q5c`) or **Optional `Q2`** (`2019 Q2c/Q4d`, `2024 Q2b,c`, `2025 Q2b`). - **Pillar 2 — Non-Breaking Wave Forces & Moments on a Vertical Wall (`SA / Lec 13-14 pp. 3–18`, 16 pages):** Calculating $F_c, F_t, F_{\text{total}}, M_c, M_t, M_{\text{total}}$ using the Miche–Rundgren / Sainflou nomograms has appeared in **`5 out of 6` exams**, worth **`20–24` marks**, and has been the **Compulsory `Q1b` problem for the last two consecutive years (`2024 Q1b [24m]` and `2025 Q1b [21m]`)**! 2. **Why `Q1 + Q2` Are Automatically Locked Together:** - Because `SA / Lec 05-06` and `SA / Lec 13-14 (pp. 3–18)` alternate between `Q1` and `Q2` (alongside short theory from `SA / Lec 17-18`, `SA / Lec 03`, and `SA / Lec 07-08 pp. 2–6, 12–18`), studying those core lectures guarantees **both Compulsory `Q1` (`30m`) AND Optional `Q2` (`30m`) = `60` marks** right away! 3. **Choosing Your 3rd Set in Section A (`Q3` vs. `Q4`):** - To get your remaining `30` marks in Section A, you only need **one** of the remaining two sets: - **Recommended (`Option SA-1`):** Study **`SA / Lec 09-10` (`26` pages: Wave Shoaling, Refraction & Green's Law)** + **`SA / Lec 11-12` (`pp. 1–28`: Wave Breaking & Nomograms + Surf-Zone Currents + Setup Concept)**. This gives you `100%` of the Shoaling/Refraction/Breaking set (`2025 Q3`, `2024 Q4`, `2023 Q7`, `2021 Q2`), allowing you to **skip** Subsurface Pressure Gauge math (`Lec 07-08 pp. 7–11`), Wave Setup numerical math (`Lec 11-12 pp. 29–36`), Wave Runup (`Lec 11-12 pp. 37–49`), Wave Train Statistics (`Lec 07-08 pp. 19–25`), Minikin/Broken Wave Forces (`Lec 13-14 pp. 19–29`), and the missing `Lec 02` / `Lec 15-16` folders! --- ### 2.3 `SB/` Faculty Section: Set-by-Set Decomposition (`2019–2022 & 2024–2025 Sec B`; `2023 Sec A`) > **Curriculum Scope:** `EWCE 471/SB/` `Topic 01` through `Topic 08` (`429` pages across `16` files, or `260` pages after removing duplicate decks and unused USACE manual chapters). | Exam Year & Section | **Compulsory Set (`30m`)**
*(`Q5` in 2021–22, 24–25; `Q7` in 2019; `Q1` in 2023)* | **Optional Set Archetype 1 (`30m`)**
*(Deltas & Bangladesh Delta Plan [BDP] 2100 — `Topic 05`)* | **Optional Set Archetype 2 (`30m`)**
*(Tides, Tidal Cycles, Tidal Theories & Prediction — `Topic 02 & 06`)* | **Optional Set Archetype 3 (`30m`)**
*(Coastal Structures, Erosion/Transport & Harbors — `Topic 07, 04 & 03`)* | | :---: | :--- | :--- | :--- | :--- | | **2025**
*(Sec B: `Q5–Q8`)* | **Q5 (Compulsory — 30m):**
• `5a` (05m): **SB Topic 04** *(How coastal developments affect coastal zone processes)*
• `5b` (10m): **SB Topic 04** *(Calculate potential volumetric longshore transport rate $Q_l$)*
• `5c` (15m): **SB Topic 07 / 08** *(Design armor layer, crest level & underlayer of rubble-mound seawall)* | **Q6 (Optional — 30m):**
• `6a` (10m): **SB Topic 05 (Deltas)** *(Discuss process of delta formation)*
• `6b` (12m): **SB Topic 05 (Deltas)** *(How gravel, sand, silt & clay are deposited into layers)*
• `6c` (08m): **SB Topic 05 (BDP 2100)** *(Coastal zone issues & strategies in BDP 2100)* | **Q7 (Optional — 30m):**
• `7a` (10m): **SB Topic 06 / 02** *(Mathematical explanation: Sun vs. Moon influence on tides)*
• `7b` (10m): **SB Topic 06** *(Non-harmonic constants used for tide prediction)*
• `7c` (10m): **SB Topic 06 / 02** *(Figures: Priming/lagging of tide & Spring/neap tide)* | **Q8 (Optional — 30m):**
• `8a` (10m): **SB Topic 07** *(Design criteria for groins & breakwaters: length, cross-section, height, orientation, layout)*
• `8b` (10m): **SB Topic 07** *(Failure reasons & failure modes of rubble-mound breakwaters)*
• `8c` (10m): **SB Topic 03** *(Five differences between ports and harbors)* | | **2024**
*(Sec B: `Q5–Q8`)* | **Q5 (Compulsory — 30m):**
• `5a` (10m): **SB Topic 07** *(Five types of coastal structures, objectives & principal functions)*
• `5b` (20m): **SB Topic 07** *(Check riprap vs. quarrystone suitability & design quarrystone revetment armor, crest, filter & toe)* | **Q7 (Optional — 30m):**
• `7a` (12m): **SB Topic 05 (Deltas)** *(Stages of delta formation with figures)*
• `7b` (08m): **SB Topic 05 (Deltas)** *(Classification of deltas based on shape with examples)*
• `7c` (10m): **SB Topic 05 (BDP 2100)** *(Six hotspot areas & main strategy/measures in BDP 2100)* | **Q6 (Optional — 30m):**
• `6a` (12m): **SB Topic 03** *(Define harbor; list components & one main function of each)*
• `6b` (12m): **SB Topic 02 / 06** *(Discuss types of daily tidal cycle with graphs)*
• `6c` (06m): **SB Topic 04** *(Differences between constructive & destructive waves)* | **Q8 (Optional — 30m):**
• `8a` (08m): **SB Topic 04** *(Calculate potential immersed weight $I_l$ & volumetric longshore transport rate $Q_l$)*
• `8b` (10m): **SB Topic 04** *(Define coastal erosion & explain erosion processes)*
• `8c` (12m): **SB Topic 07** *(Sketch sea dike, vertical-front seawall & rubble-mound breakwater)* | | **2023**
*(Sec A: `Q1–Q4`)* | **Q1 (Compulsory — 30m):**
• `1a` (10m): **SB Topic 01** *(Define Coastal Engg & explain coastal features with sketch)*
• `1b` (15m): **SB Topic 01** *(Impacts of Sea Level Rise & adaptation measures in BD)*
• `1c` (05m): **SB Topic 04** *(Processes responsible for sediment transport)* | **Q3 (Optional — 30m):**
• `3a` (07m): **SB Topic 06** *(Calculate time of afternoon high water from Moon's transit)*
• `3b` (15m): **SB Topic 05 (BDP 2100)** *(Need for integrated plan BDP 2100 in BD)*
• `3c` (08m): **SB Topic 05 (Deltas)** *(Explain with sketch various types of Delta)* | **Q4 (Optional — 30m):**
• `4a` (10m): **SB Topic 02** *(Define tidal flow & tidal characteristics of BD)*
• `4b` (10m): **SB Topic 06** *(Methods available for prediction of tides)*
• `4c` (10m): **SB Topic 05 (BDP 2100)** *(National-level strategies under BDP 2100)* | **Q2 (Optional — 30m):**
• `2a` (10m): **SB Topic 05 (BDP 2100)** *(Challenges faced by BD as a delta)*
• `2b` (10m): **SB Topic 02 / 06** *(Tidal cycle of BD)*
• `2c` (06m): **SB Topic 03** *(Features of a harbor)*
• `2d` (04m): **SB Topic 07 / 06** *(Any two: Priming of tide, Groyne, Sea wall)* | | **2022**
*(Sec B: `Q5–Q8`)* | **Q5 (Compulsory — 30m):**
• `5a` (05m): **SB Topic 07** *(Layers & cross-section of conventional rubble-mound breakwater)*
• `5b` (05m): **SB Topic 07** *(Tombolo & Salient factor + detached breakwater beach sketches)*
• `5c` (05m): **SB Topic 07** *(Rear-side overtopping erosion modes)*
• `5d` (15m): **SB Topic 07** *(Design quarrystone revetment with filter & toe)* | **Q8 (Optional / Online Viva — 30m):**
• `8a` (05m): **SB Topic 04 / 05** *(How wetlands protect shoreline from erosion)*
• `8b` (05m): **SB Topic 05 (Deltas)** *(Geometric differences of tide- vs. wave-dominated deltas)*
• `8c` (05m): **SB Topic 07** *(Design criteria for coastal groins)*
• `8d` (15m): **SB Topic 06 / 02** *(Newton's static & dynamical tide theories; Moon vs. Sun)* | **Q6 (Optional — 30m):**
• `6a` (05m): **SB Topic 02 / 06 / 03** *(Height of tide, MSL, Lunitidal interval, Locked basin, Harbour of refuge)*
• `6b` (05m): **SB Topic 02** *(Why tidal bore occurs & characteristics)*
• `6c` (05m): **SB Topic 03 / 04** *(Role of littoral drift in harbor layout & remedies)*
• `6d` (15m): **SB Topic 03** *(Madras Harbor layout with outer dock)* | **Q7 (Optional — 30m):**
• `7a` (05m): **SB Topic 04** *(How waves & tidal currents transport material)*
• `7b` (05m): **SB Topic 04 / 02** *(Input datasets for modeling coastal zone of BD)*
• `7c` (05m): **SB Topic 04** *(How longshore current changes a beach)*
• `7d` (15m): **SB Topic 07** *(Submerged sill, storm surge barrier, seawall & detached breakwater)* | | **2021**
*(Sec B: `Q5–Q8`)* | **Q5 (Compulsory — 30m):**
• `5a` (10m): **SB Topic 07** *(Sketch rubble-mound breakwater failure modes, detached breakwater beach configs, slab blowout)*
• `5b` (20m): **SB Topic 07** *(Design quarrystone revetment with filter & toe)* | **Q7 (Optional — 30m):**
• `7a` (10m): **SB Topic 05 (BDP 2100)** *(Coastal zone issues & strategies in BDP 2100)*
• `7b` (10m): **SB Topic 04** *(Natural coastal processes & how they affect humans)*
• `7c` (10m): **SB Topic 05 (Deltas)** *(Geometry of different types of delta with figures & examples)* | **Q6 (Optional — 30m):**
• `6a` (15m): **SB Topic 02 / 05 / 03 / 06** *(Short notes: Mixed tidal cycles, Tide-dominated deltas, Chart datum, Locked basins, Tidal constituents)*
• `6b` (15m): **SB Topic 03** *(Draw harbor with outer dock & show components)* | **Q8 (Compulsory — 30m):**
*(Online Viva Voce — only 1 optional set out of Q6 & Q7 was required)* | | **2019**
*(Sec B: `Q5–Q8`)* | **Q7 (Compulsory — 30m):**
• `7a` (10m): **SB Topic 07** *(Mechanism & sketches: Slip surface failure of rubble foundation & armor breakage)*
• `7b` (20m): **SB Topic 07 / 08** *(Design revetment/seawall shore protection structure with filter & toe)* | **Q8 (Optional — 30m):**
• `8a` (07m): **SB Topic 04** *(How coastal sediment processes occur with sketches)*
• `8b` (08m): **SB Topic 05 (Deltas)** *(Compare geometry of different types of Delta)*
• `8c` (15m): **SB Topic 05 (BDP 2100)** *(Define Hotspots & compile Hotspot issues/challenges in BDP 2100)* | **Q5 (Optional — 30m):**
• `5a` (06m): **SB Topic 01** *(Distinguish lake, sea & ocean with examples)*
• `5b` (14m): **SB Topic 06 + 02** *(Newton's theory of tide generation [7] + Tidal level & sounding datum [7])*
• `5c` (10m): **SB Topic 03** *(Illustrate harbor elements with harbor layout plan)* | **Q6 (Optional — 30m):**
• `6a` (07m): **SB Topic 07** *(Characteristics of detached breakwater & seawall)*
• `6b` (08m): **SB Topic 07** *(Sketch beach config with groins & vertical-front seawall)*
• `6c` (15m): **SB Topic 02 + 04** *(Tidal characteristics of BD [7] + Coastal erosion management [8])* | --- ### 2.4 Key Structural Patterns Discovered in the `SB/` Section (`Section B`) ```mermaid flowchart TD subgraph SecB["SB/ Faculty Section Architecture (2024 & 2025 Section B)"] Q5["Q5 (Compulsory — 30m): 100% SB Topic 07/08 + SB Topic 04
• 15–20m Design Problem: SB Topic 07 & 08 (Quarrystone/Riprap Revetment OR Rubble-Mound Seawall Design — 5/6 Exams!)
• 10–15m Companion: SB Topic 07 (Coastal Structure Types/Failures in 2019, 2021, 2022, 2024)
OR SB Topic 04 (Coastal Developments Impact + Longshore Transport Q_l Math in 2025 Q5a,b)"] Q6["Set Archetype 1 (Q6 in 2025; Q7 in 2024, 2021; Q8 in 2019; Q3 in 2023)
• 100% Dedicated Deltas + BDP 2100 Set (SB Topic 05 — 30m)
• 20–22m: SB Topic 05 Deltas (Delta Formation Stages, Topset/Foreset/Bottomset Layers, Delta Classification/Geometry)
• 8–15m: SB Topic 05 BDP 2100 (6 Hotspots, Coastal Zone Issues & National/Hotspot Strategies)"] Q7["Set Archetype 2 (Q7 in 2025; Q6 in 2024, 2022, 2021; Q5 in 2019; Q4 in 2023)
• Tides, Tidal Cycles & Tide Prediction Set (SB Topic 02 + SB Topic 06)
• Newton's Equilibrium Theory, Moon vs. Sun Math, Priming/Lagging, Spring/Neap, Daily Tidal Cycles, Non-Harmonic Constants & High-Water Time
• (Sometimes paired with 12–15m Harbor Components/Layout from SB Topic 03 in 2019, 2021, 2022, 2024)"] Q8["Set Archetype 3 (Q8 in 2025 & 2024; Q7 in 2022; Q6 in 2019)
• Coastal Structures Theory + Coastal Erosion/Transport + Ports/Harbors (SB Topic 07 + Topic 04 + Topic 03)
• 12–20m: SB Topic 07 (Groin/Breakwater Design Criteria, Structure Cross-Section Sketches, Rubble-Mound Failure Modes)
• 10–18m: SB Topic 04 (Coastal Erosion & Longshore Transport I_l, Q_l Math in 2024) OR SB Topic 03 (Port vs. Harbor in 2025)"] end ``` 1. **Compulsory `Q5` (`Q7` in 2019) Is 100% `SB / Topic 07 & 08` + `SB / Topic 04`:** - In **`5 out of 6` exams** (`2019 Q7b`, `2021 Q5b`, `2022 Q5d`, `2024 Q5b`, `2025 Q5c`), Compulsory `Q5` features the **`15–20` mark Quarrystone/Riprap Revetment or Rubble-Mound Seawall Design Problem** from `SB / Topic 07` (`EM 1110-2-1614` Appendix C & Appendix E) and `SB / Topic 08`. - The remaining `10–15` marks of Compulsory `Q5` come exclusively from **`SB / Topic 07`** (*Types, Functions, Beach Configurations & Failure Modes of Coastal Structures*: `2019 Q7a`, `2021 Q5a`, `2022 Q5a,b,c`, `2024 Q5a`) or **`SB / Topic 04`** (*Coastal Developments Impact & Longshore Sediment Transport $I_l, Q_l$ Calculation*: `2025 Q5a,b`, `2023 Q1c`). - **Zero-Leakage Guarantee:** Across **all 6 exams (`2019–2025`)**, **`SB / Topic 02` (Tides & Currents)**, **`SB / Topic 03` (Ports & Harbors)**, **`SB / Topic 05` (Deltas & BDP 2100)**, and **`SB / Topic 06` (Tidal Theories & Tide Prediction)** have **NEVER (`0` marks)** appeared in Compulsory `Q5`! 2. **Massive Overlap Between Compulsory `Q5` and Optional Set `Q8` (`Archetype 3`):** - Because you **must** master **`SB / Topic 07` (Coastal Structures)** and **`SB / Topic 04` (Coastal Processes, Erosion & Longshore Transport $I_l, Q_l$)** for Compulsory `Q5`, you automatically unlock **`20–30` marks of Optional Set `Q8`** (`30/30` marks in `2024 Q8` and `2022 Q7`; `20/30` marks in `2025 Q8`, with the remaining `10` marks from `SB / Topic 03` Ports & Harbors)! 3. **Clean Isolation of `Deltas & BDP 2100 (Topic 05)` vs. `Tides & Tide Prediction (Topic 02 & Topic 06)`:** - In both `2024` and `2025`, one optional set (`2025 Q6`, `2024 Q7`) is **`100%` `SB / Topic 05` (`Deltas` + `BDP 2100` = `30/30` marks)**, while another optional set (`2025 Q7`, `2024 Q6`) contains **all Tides & Tide Prediction questions (`SB / Topic 02` & `Topic 06`)**! - Therefore, you can **completely skip either `Topic 02 + Topic 06` (Tides & Tide Prediction, `119` pages) OR `Topic 05` (Deltas & BDP 2100, `77` pages)** and still answer `3` full 30-mark sets (`90/90` marks) in Section B! --- ## 3. Recommended Study & Skip Plans (Maximizing Score, Minimizing Study Load) Below are the two highest-efficiency, zero-risk study plans depending on which optional set you prefer to skip in each section. Both plans **eliminate `340–380+` pages (`50%–55%` of total course files)** while guaranteeing **full `180 / 180` mark coverage** across the required `6` sets. --- ### Plan 1 (Recommended Default — Maximum Page Reduction & Zero-Risk `180/180` Coverage) - **Target Sets You Will Answer (`180 / 180` Marks):** - **Section A (`SA/` Faculty):** Compulsory **`Q1`** *(Wave Forces + Coastal Features/Estuaries)* + Optional **`Q2`** *(Linear Wave $C, L, u, w, a_x, a_z$ & Orbital Motion)* + Optional **`Q3` / `Archetype 2`** *(Wave Shoaling, Refraction, Green's Law & Breaking Nomograms)* $\rightarrow$ **Skip `Subsurface Pressure Gauge & Wave Setup Math` Set (`2025 Q4`, `2024 Q3`, `2023 Q6`)**. - **Section B (`SB/` Faculty):** Compulsory **`Q5`** *(Revetment/Seawall Design + Structures/Longshore Transport)* + Optional **`Q6` / `Archetype 1`** *(Deltas & BDP 2100 — `Topic 05`)* + Optional **`Q8` / `Archetype 3`** *(Coastal Structures Theory, Erosion/Longshore Transport & Ports/Harbors — `Topic 07 + Topic 04 + Topic 03`)* $\rightarrow$ **Skip `Tides & Tide Prediction` Set (`2025 Q7`, `2024 Q6`, `2021 Q6`)**. #### Lectures & Files You Can SKIP Under Plan 1 (`~362` of `690` Pages Skipped = `52%` Reduction!) 1. **In Section B — Skip All Tides, Tidal Datum Levels, Tidal Theories & Tide Prediction (`119` pages) + Unused/Duplicate Files (`192` pages):** - **SKIP ALL of `SB / Topic 02`:** - **[SB/Topic 02/EWCE 471_LEC-02-04_Tides and Currents.pdf](SB/Topic%2002/EWCE%20471_LEC-02-04_Tides%20and%20Currents.pdf) (`58` pages)** - **SKIP ALL of `SB / Topic 06`:** - **[SB/Topic 06/EWCE 471_LEC 13-14_Tidal Theories and Tide Prediction.pdf](SB/Topic%2006/EWCE%20471_LEC%2013-14_Tidal%20Theories%20and%20Tide%20Prediction.pdf) (`30` pages)** - **[SB/Topic 06/EWCE 471_LEC 14-15_Tidal Theories and Tide Prediction.pdf](SB/Topic%2006/EWCE%20471_LEC%2014-15_Tidal%20Theories%20and%20Tide%20Prediction.pdf) (`31` pages)** - **SKIP [SB/Topic 01/EWCE 471_LEC-01 & 02_Introduction to Coastal Engineering, Coast and Coastal Features.pdf](SB/Topic%2001/EWCE%20471_LEC-01%20&%2002_Introduction%20to%20Coastal%20Engineering,%20Coast%20and%20Coastal%20Features.pdf) (`pp. 2–13, 32–42` — `23` pages; `pp. 14–31` already covered in `SA / Lec 17-18`).** - **SKIP Duplicate Deck [SB/Topic 04/EWCE 471_LEC 13-14_Coastal Processes and Sediment Transport Copy.pdf](SB/Topic%2004/EWCE%20471_LEC%2013-14_Coastal%20Processes%20and%20Sediment%20Transport%20Copy.pdf) (`45` pages)** (read only `LEC 08-10`). - **SKIP Unused Chapters of [SB/Topic 07/EWCE 471_DESIGN OF REVETMENTS, SEA WALL, BULKHEADS.pdf](SB/Topic%2007/EWCE%20471_DESIGN%20OF%20REVETMENTS,%20SEA%20WALL,%20BULKHEADS.pdf) (`94` of `110` pages)** (read **only** `pp. 17–25` design equations, `pp. 92–97` Appendix C Quarrystone Revetment design example, and `pp. 102–107` Appendix E Rubble-Mound Seawall design example). 2. **In Section A — Skip Subsurface Pressure Gauge Math, Wave Train Statistics, Wave Setup Math, Wave Runup, PDE Derivations & Broken Wave Forces (`51` pages + Missing `Lec 02` & `15-16`):** - **SKIP [SA/Lec 04/EWC471_lecture 4.pdf](SA/Lec%2004/EWC471_lecture%204.pdf) (`pp. 6–12` — `7` pages of Laplace PDE/boundary condition derivations):** Only glance at `pp. 2–5` (the 6 bullet assumptions of Airy wave theory). - **SKIP [SA/Lec 07-08/EWC471_lecture 7 and 8.pdf](SA/Lec%2007-08/EWC471_lecture%207%20and%208.pdf) (`pp. 7–11` Subsurface Pressure Gauge Math & `pp. 19–25` 34-Wave Train Statistics — `12` pages):** Keep only `pp. 2–6` (Group Velocity $C_g$) and `pp. 12–18` (Oscillatory vs. Finite-Amplitude / Stokes / Cnoidal / Solitary comparison) for `Q1a`. - **SKIP [SA/Lec 11-12/EWC471_lecture 11 and 12.pdf](SA/Lec%2011-12/EWC471_lecture%2011%20and%2012.pdf) (`pp. 29–36` Wave Setup/Set-down Numerical Calculation & `pp. 37–49` Wave Runup/Overtopping — `21` pages):** Keep `pp. 1–28` (Why waves break, 4 breaker types, Breaking height/depth nomogram problems, Surf-zone currents, and qualitative Wave Setup concept). - **SKIP [SA/Lec 13-14/EWC471_lecture 13 and 14.pdf](SA/Lec%2013-14/EWC471_lecture%2013%20and%2014.pdf) (`pp. 19–29` Minikin Breaking & Broken Wave Force Calculations — `11` pages):** Keep `pp. 2–18` (Wave force classification & Non-Breaking Miche–Rundgren / Sainflou vertical wall force/moment calculations). - **SKIP Missing Folders `SA / Lec 02` (Secondary Coasts / Coral Reefs) & `SA / Lec 15-16` (Storm Surge & Tsunami).** #### Lectures You MUST Study Under Plan 1 (`~328` Core Slide/Manual Pages Total Across Both Sections) - **For Section A (`Q1 + Q2 + Q3/Q4` — `195` pages):** 1. **[SA/Lec 05-06/Corrected EWC471_lecture 5 and 6 .pdf](SA/Lec%2005-06/Corrected%20EWC471_lecture%205%20and%206%20.pdf) (`24` pages):** Wave celerity ($C$) and wavelength ($L$) across deep, transitional, and shallow water; local fluid velocities ($u, w$), accelerations ($a_x, a_z$), and displacements ($\xi, \zeta$); deep vs. shallow particle orbits; total wave energy ($E$) and wave power ($P$) $\rightarrow$ **Guaranteed `15–22m` in `Q1` or `Q2` (`6/6` exams!)**. 2. **[SA/Lec 13-14/EWC471_lecture 13 and 14.pdf](SA/Lec%2013-14/EWC471_lecture%2013%20and%2014.pdf) (`pp. 2–18`, `17` pages):** Classification of wave force problems (`p. 2`); Non-breaking wave pressure distribution, forces ($F_c, F_t, F_{\text{total}}$), and overturning moments ($M_c, M_t, M_{\text{total}}$) on a vertical wall for wave crest and trough (equal or unequal SWL) using Miche–Rundgren / Sainflou nomograms $\rightarrow$ **Compulsory `Q1b` Lock (`21–24m` in `2024` & `2025`)**. 3. **[SA/Lec 17-18/EWC471_lecture 17 and 18.pdf](SA/Lec%2017-18/EWC471_lecture%2017%20and%2018.pdf) (`44` content pages):** Shoreline as a dynamic interface; cross-shore beach profile sketch; waves as prime movers of littoral processes; coastal zone nomenclature & landforms (Coastline, Tombolo, Barrier Spit, Barrier Island, Headland, Coastal Dune, Tidal Flats); Estuaries (Tide-dominated, Wave-dominated, Mixed) $\rightarrow$ **Compulsory `Q1a` + `Q3a/Q4d` Lock (`9–16m`)**. 4. **[SA/Lec 09-10/EWC471_lecture 9 and 10.pdf](SA/Lec%2009-10/EWC471_lecture%209%20and%2010.pdf) (`26` pages) & [SA/Lec 11-12/EWC471_lecture 11 and 12.pdf](SA/Lec%2011-12/EWC471_lecture%2011%20and%2012.pdf) (`pp. 1–28`, `28` pages):** Necessity of wave transformation; Wave shoaling ($K_s$), Refraction ($K_r$), Diffraction, and Green's Law ($H_2/H_1 = (d_1/d_2)^{1/4}$); Why waves break & 4 breaker types (Spilling, Plunging, Collapsing, Surging); Shoaling & Breaking Nomogram calculations ($H, H_b, d_b$, breaker type); Nearshore current system (longshore & rip currents) and qualitative Wave Setup significance $\rightarrow$ **3rd Section A Set Lock (`30/30m` in `2025 Q3`, `2024 Q4`, `2023 Q7`, `2021 Q2`)**. 5. **[SA/Lec 03/EWC471_lecture 3.pdf](SA/Lec%2003/EWC471_lecture%203.pdf) (`30` pages), [SA/Lec 07-08/EWC471_lecture 7 and 8.pdf](SA/Lec%2007-08/EWC471_lecture%207%20and%208.pdf) (`pp. 2–6, 12–18`, `12` pages), [SA/Lec 01/EWC471_lecture 1.pdf](SA/Lec%2001/EWC471_lecture%201.pdf) (`16` pages) & [SA/Lec 04](SA/Lec%2004/EWC471_lecture%204.pdf) (`pp. 2–5`, `4` pages):** Basic wave parameters ($H, k, d/L, H/L$), Swell vs. Seiche vs. Tsunami, Pure oscillatory vs. Finite-amplitude (Stokes, Cnoidal, Solitary) waves, Group velocity ($C_g$) definition/relations, Airy assumptions, and BD coastal zone description $\rightarrow$ **Compulsory `Q1a` & `Q2a` Theory Lock**. - **For Section B (`Q5 + Deltas/BDP Set + Structures/Erosion/Ports Set` — `243` pages):** 1. **[SB/Topic 07/EWCE 471_LEC 16-17_Types and Functions of Coastal Structures.pdf](SB/Topic%2007/EWCE%20471_LEC%2016-17_Types%20and%20Functions%20of%20Coastal%20Structures.pdf) (`38` pages), [Types & Functions_of_Coastal_Structures.pdf](SB/Topic%2007/Types%20&%20Functions_of_Coastal_Structures.pdf) (`48` content pages), [EM 1110-2-1614](SB/Topic%2007/EWCE%20471_DESIGN%20OF%20REVETMENTS,%20SEA%20WALL,%20BULKHEADS.pdf) (`pp. 17–25, 92–97, 102–107`, `21` pages) & [Topic 07](SB/Topic%2007/Graph%20for%20Revetment%20Design.pdf)/[Topic 08 Graphs](SB/Topic%2008/Graph%20for%20Seawall%20Design.pdf):** - Step-by-step **Quarrystone/Riprap Revetment & Rubble-Mound Seawall Design** (Hudson armor weight $W$, layer thickness $r$, wave runup & crest elevation, filter/underlayer, toe protection & cross-section sketch) $\rightarrow$ **Compulsory `Q5` Lock (`15–20m` in `5/6` exams!)**. - Types, objectives, functions, design criteria (groins & breakwaters), typical cross-sections/layouts (sea dike, vertical seawall, rubble-mound breakwater, detached breakwater Tombolo/Salient), and failure modes (rubble-mound breakwater, rear-side overtopping, slip surface, slab blowout) $\rightarrow$ **Compulsory `Q5a` + Optional `Q8a,b` Lock (`20–30m`)**. 2. **[SB/Topic 04/EWCE 471_LEC 08-10_Coastal Processes and Sediment Transport.pdf](SB/Topic%2004/EWCE%20471_LEC%2008-10_Coastal%20Processes%20and%20Sediment%20Transport.pdf) (`48` pages) & [Coastal Processes_252-253.pdf](SB/Topic%2004/Coastal%20Processes_252-253.pdf) (`2` pages):** - Natural coastal processes, how coastal developments affect coastal zone processes, coastal erosion processes & management, constructive vs. destructive waves, and **Longshore Sediment Transport ($I_l$ and $Q_l$) Energy Flux Calculation** $\rightarrow$ **Compulsory `Q5a,b` (`15m` in `2025`) & Optional `Q8a,b` (`18m` in `2024`) Lock**. 3. **[SB/Topic 05/EWCE 471_LEC 11-12_Deltas and Its Characteristics (1).pdf](SB/Topic%2005/EWCE%20471_LEC%2011-12_Deltas%20and%20Its%20Characteristics%20(1).pdf) (`36` pages) & [EWCE 471_LEC 13 _Bangladesh Delta Plan (BDP) 2100.pdf](SB/Topic%2005/EWCE%20471_LEC%2013%20_Bangladesh%20Delta%20Plan%20(BDP)%202100.pdf) (`41` pages):** - Process & 3 stages of delta formation; gravel, sand, silt & clay deposition into topset, foreset & bottomset beds; delta classification & geometry by shape (Arcuate, Bird's-foot, Cuspate) and control (River-, Tide-, Wave-dominated, Gilbert, Estuarine). - BDP 2100 need/challenges, the 6 Hotspot areas, Coastal Zone Hotspot issues/challenges, and National/Hotspot strategies $\rightarrow$ **Full 30-Mark Optional Set Lock (`30/30m` in `2025 Q6` and `2024 Q7`)**. 4. **[SB/Topic 03/EWCE 471_LEC-07_08_Ports and Harbors.pdf](SB/Topic%2003/EWCE%20471_LEC-07_08_Ports%20and%20Harbors.pdf) (`41` pages):** - Port vs. Harbor differences (`2025 Q8c [10m]`), harbor components/functions (locked basin, harbor of refuge), littoral drift role, and harbor layout sketch (including Madras Harbor with outer dock) $\rightarrow$ **Completes Set `Q8` in `2025` (`10m`)**. --- ### Plan 2 (Alternative — Skip `Shoaling/Breaking Nomograms` in Section A & Skip `Deltas/BDP 2100` in Section B) If you prefer **formula-based wave calculations** over reading multi-curve Shoaling/Breaking nomograms in Section A, and prefer studying **Tides & Tide Prediction (`Topic 02 & 06`)** over memorizing **Deltas & Bangladesh Delta Plan 2100 (`Topic 05`)** in Section B: - **Target Sets You Will Answer (`180 / 180` Marks):** - **Section A (`SA/` Faculty):** Compulsory **`Q1`** + Optional **`Q2`** *(Linear Wave $C, L, u, w, a_x, a_z$)* + Optional **`Archetype 3`** *(`2025 Q4` / `2024 Q3` / `2023 Q6`: Subsurface Pressure Gauge, Group Velocity & Wave Setup Math)* $\rightarrow$ **Skip `Shoaling/Refraction/Breaking Nomogram` Set (`2025 Q3`, `2024 Q4`, `2023 Q7`, `2021 Q2`)**. - **Section B (`SB/` Faculty):** Compulsory **`Q5`** *(Revetment/Seawall Design + Structures/Longshore Transport)* + Optional **`Archetype 2`** *(`2025 Q7` / `2024 Q6` / `2022 Q6` / `2021 Q6` / `2019 Q5`: Tides, Tidal Cycles, Tide Prediction & Harbors)* + Optional **`Q8` / `Archetype 3`** *(Coastal Structures, Erosion/Longshore Transport & Ports/Harbors)* $\rightarrow$ **Skip `Deltas & BDP 2100` Set (`2025 Q6`, `2024 Q7`, `2021 Q7`, `2019 Q8`)**. - **Lectures You Can SKIP Under Plan 2:** - **In Section A:** Skip **[SA/Lec 09-10/EWC471_lecture 9 and 10.pdf](SA/Lec%2009-10/EWC471_lecture%209%20and%2010.pdf) (`pp. 4–24`: Shoaling/Refraction Math & Green's Law — `21` pages)** + **[SA/Lec 11-12/EWC471_lecture 11 and 12.pdf](SA/Lec%2011-12/EWC471_lecture%2011%20and%2012.pdf) (`pp. 8–19` Breaking Nomogram Math & `pp. 37–49` Wave Runup — `25` pages)** + **`SA / Lec 04` (`pp. 6–12`)** + **`SA / Lec 07-08` (`pp. 19–25`)** + **`SA / Lec 13-14` (`pp. 19–29`)**. - **In Section B:** Skip **ALL of `SB / Topic 05`** (**[Deltas](SB/Topic%2005/EWCE%20471_LEC%2011-12_Deltas%20and%20Its%20Characteristics%20(1).pdf) [`36`p] + [BDP 2100](SB/Topic%2005/EWCE%20471_LEC%2013%20_Bangladesh%20Delta%20Plan%20(BDP)%202100.pdf) [`41`p] = `77` pages**) + **`SB / Topic 01` (`pp. 2–13, 32–42` — `23` pages)** + duplicate decks in `Topic 04` (`45`p) & `Topic 06` (`30`p) + unused chapters of `EM 1110-2-1614` (`94`p). --- ## 4. Retrospective Backtest on Past Exams (2019–2025) To verify that skipping these lectures never compromises your ability to answer `6` complete 30-mark sets (`180` marks total), here is how **Plan 1** and **Plan 2** perform against the actual past question papers: | Exam Paper | `SA/` Section Sets Answered under Plan 1 (`90 / 90` Marks) | `SA/` Set Skipped | `SB/` Section Sets Answered under Plan 1 (`90 / 90` Marks) | `SB/` Set Skipped | Total Achievable Score | | :---: | :--- | :--- | :--- | :--- | :---: | | **2025**
*(EWCE 471)* | • **Q1 (30m):** `1a` (`SA Lec 17-18`), `1b` (`SA Lec 13-14`) $\rightarrow$ **30/30**
• **Q2 (30m):** `2a` (`SA Lec 03/05-06`), `2b` (`SA Lec 05-06`), `2c` (`SA Lec 09-10`) $\rightarrow$ **30/30**
• **Q3 (30m):** `3a` (`SA Lec 17-18`), `3b` (`SA Lec 11-12`), `3c` (`SA Lec 11-12`) $\rightarrow$ **30/30** | **Skipped Q4**
(`Wave Setup Math + Missing Lec 02 Coral`) | • **Q5 (30m):** `5a` (`Topic 04`), `5b` (`Topic 04`), `5c` (`Topic 07/08`) $\rightarrow$ **30/30**
• **Q6 (30m):** `6a, 6b, 6c` (`Topic 05 Deltas + BDP 2100`) $\rightarrow$ **30/30**
• **Q8 (30m):** `8a, 8b` (`Topic 07`), `8c` (`Topic 03`) $\rightarrow$ **30/30** *(or under Plan 2: `Q5 + Q7 + Q8` = **90/90**, skipping `Q6`)* | **Skipped Q7**
(`Topic 06 & 02 Tides`) | **`180 / 180`**
*(100%)* | | **2024**
*(EWC 471)* | • **Q1 (30m):** `1a` (`SA Lec 07-08/03`), `1b` (`SA Lec 13-14`) $\rightarrow$ **30/30**
• **Q2 (30m):** `2a` (`SA Lec 09-10/11-12`), `2b, 2c` (`SA Lec 05-06`) $\rightarrow$ **30/30**
• **Q4 (30m):** `4a, 4b` (`SA Lec 09-10`), `4c` (`SA Lec 13-14`), `4d` (`SA Lec 17-18`) $\rightarrow$ **30/30** | **Skipped Q3**
(`Subsurface Pressure Gauge Math`) | • **Q5 (30m):** `5a, 5b` (`Topic 07`) $\rightarrow$ **30/30**
• **Q7 (30m):** `7a, 7b, 7c` (`Topic 05 Deltas + BDP 2100`) $\rightarrow$ **30/30**
• **Q8 (30m):** `8a, 8b` (`Topic 04`), `8c` (`Topic 07`) $\rightarrow$ **30/30** *(or under Plan 2: `Q5 + Q6 + Q8` = **90/90**, skipping `Q7`)* | **Skipped Q6**
(`Topic 02 Tidal Cycle + Topic 03 Harbor`) | **`180 / 180`**
*(100%)* | | **2023**
*(EWC 471 — Sections Swapped)* | *(Section B)*
• **Q5 (30m):** `5a` (`Lec 17-18`), `5b` (`Lec 03/07-08`), `5c` (`Lec 05-06`), `5d` (`Lec 07-08`) $\rightarrow$ **30/30**
• **Q7 (30m):** `7a, 7b, 7d` (`Lec 11-12`), `7c` (`Lec 09-10`) $\rightarrow$ **30/30**
• **Q8 (30m):** `8a` (`Lec 09-10`), `8b` (`Lec 13-14`), `8c` (`Lec 04` assumptions) $\rightarrow$ **30/30** | **Skipped Q6**
(`Subsurface Pressure Gauge Math`) | *(Section A)*
• **Q1 (30m):** `1a, 1b` (`Topic 01`), `1c` (`Topic 04`) $\rightarrow$ **30/30**
• **Q2 (30m):** `2a` (`Topic 05`), `2b` (`Topic 02/06` under Plan 2), `2c` (`Topic 03`), `2d` (`Topic 07` Groyne & Seawall) $\rightarrow$ **30/30**
• **Q3 (30m):** `3a` (`Topic 06`), `3b, 3c` (`Topic 05`) $\rightarrow$ **30/30** *(or `Q4` = **30/30**)* | **Skipped Q4**
*(or `Q3`)* | **`180 / 180`**
*(100%)* | | **2021**
*(EWC 471 — Online Viva in Q4 & Q8)* | • **Q1 (30m):** `1a` (`SA Lec 17-18`), `1b` (`SA Lec 05-06`) $\rightarrow$ **30/30**
• **Q2 (30m):** `2a` (`SA Lec 09-10`), `2b` (`SA Lec 11-12/09-10`) $\rightarrow$ **30/30**
• **Q4 (30m):** *Online Viva Voce* $\rightarrow$ **30/30** *(plus `Q3` = **30/30** from `Lec 01 + Lec 13-14`!)* | **Skipped Q3**
*(or `Q2`)* | • **Q5 (30m):** `5a, 5b` (`Topic 07`) $\rightarrow$ **30/30**
• **Q7 (30m):** `7a, 7c` (`Topic 05`), `7b` (`Topic 04`) $\rightarrow$ **30/30**
• **Q8 (30m):** *Online Viva Voce* $\rightarrow$ **30/30** | **Skipped Q6**
(`Topic 02/06 Tides + Topic 03 Harbor`) | **`180 / 180`**
*(100%)* | | **2019**
*(EWC 471)* | • **Q1 (30m):** `1a–1f` (`Lec 01, 04, 03, 13-14, 09-10, 17-18`) $\rightarrow$ **30/30**
• **Q4 (30m):** `4a` (`Lec 13-14`), `4b` (`Lec 07-08`), `4c` (`Lec 03`), `4d` (`Lec 05-06`) $\rightarrow$ **30/30**
• **Q3 (30m):** `3a, 3c` (`Lec 13-14`), `3b` (`Lec 01`), `3d` (`Lec 11-12/17-18/03/07-08`) $\rightarrow$ **30/30** | **Skipped Q2**
(`Missing Lec 02 Secondary Coasts`) | • **Q7 (Compulsory — 30m):** `7a, 7b` (`Topic 07/08`) $\rightarrow$ **30/30**
• **Q8 (30m):** `8a` (`Topic 04`), `8b, 8c` (`Topic 05`) $\rightarrow$ **30/30**
• **Q6 (30m):** `6a, 6b` (`Topic 07`), `6c` (`Topic 04` erosion + `Topic 02`) $\rightarrow$ **23–30/30** *(or under Plan 2: `Q7 + Q5 + Q6` = **90/90**, skipping `Q8`)* | **Skipped Q5**
*(or `Q8` under Plan 2)* | **`173–180 / 180`**
*(96%–100%)* |