CE-503-D Marine Construction - Nov 2022 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   aWrite in detail about Inland water transports and coastal protection works.
   How to answer

   • Define inland water transport - rivers, canals, lakes and coastal shipping
   • Types and requirements of inland waterways
   • Coastal protection works - sea walls, groynes, breakwaters, revetments
   • Functions, design aspects and maintenance
2. 7 Marks
   bHow are harbors classified on the basis of location? Explain in detail?
   How to answer

   • Basis of classification by location - natural, semi-natural, artificial harbours
   • River, estuary, open sea and creek harbours
   • Examples and suitability conditions
   • Advantages and limitations of each type
3. 7 Marks
   aExplain the characteristics of good harbour and principles of harbour planning.
   How to answer

   • Definition of good harbour - shelter, depth, access
   • Characteristics - protection, anchorage, facilities, hinterland connection
   • Principles of harbour planning - site selection, layout, depth, expansion
   • Navigational and operational considerations
4. 7 Marks
   bWhat type of equipment to be used during hydrographic survey operations? Explain.
   How to answer

   • Purpose of hydrographic survey - depth, topography, tides
   • Sounding equipment - lead line, echo sounder
   • Position fixing - sextant, GPS, total station
   • Tide gauges and data processing
5. 7 Marks
   aShow how the impact pressure on a sea structure is derived:

   1. i)In Shallow Water
   2. ii)In Deep Water
   How to answer

   • Wave pressure theory and assumptions
   • Derivation for shallow water case
   • Derivation for deep water case
   • Comparison of pressure distribution
6. 7 Marks
   bOn what do the length and height of a sea wave depend? Explain the action of 'Air breakwater'.
   How to answer

   • Factors affecting wavelength - wind speed, duration, fetch
   • Factors affecting wave height
   • Concept of air breakwater
   • Mechanism of wave damping by air bubbles
7. 7 Marks
   aExplain with neat sketches the method of construction for wall type breakwater.
   How to answer

   • Definition and function of wall type breakwater
   • Site preparation and foundation
   • Construction steps with neat sketches
   • Superstructure and protection
8. 7 Marks
   bWhy are piers constructed? How are their dimensions determined?
   How to answer

   • Purpose of piers - berthing, cargo handling
   • Types and location requirements
   • Factors governing length, width and depth
   • Structural and operational considerations
9. 7 Marks
   aGive a typical cross-section of dock wall and explain the various aspects of construction.
   How to answer

   • Typical cross-section of dock wall - base, stem, coping
   • Earth and water pressure considerations
   • Construction materials and methods
   • Drainage, backfill and stability aspects
10. 7 Marks
    bShow that the compressive force on the lock gate varies directly as the width of the lock and inversely as the rise of bill?
    How to answer

    • Lock gate geometry - width, rise, angle
    • Hydrostatic force resolution on mitre gates
    • Expression for compressive thrust
    • Proportionality to width and inverse to rise
11. 7 Marks
    aWhat are the requirements of a good port?
    How to answer

    • Definition of port and harbour facilities
    • Requirements - shelter, depth, storage, transport links
    • Navigational aids and services
    • Expansion and hinterland development
12. 7 Marks
    bWrite short notes on:

    1. i)Sand dunes
    2. ii)Genoa Harbour
    3. iii)Beaufort Scale
    How to answer

    • Sand dunes - formation and effect on coast
    • Genoa Harbour - location and features
    • Beaufort Scale - wind force classification and marine use
13. 7 Marks
    aWhat are Dolphins? Describe their types.
    How to answer

    • Definition of dolphins as mooring structures
    • Types - pile, pontoon, mooring dolphins
    • Construction and uses
    • Selection criteria
14. 7 Marks
    bWhy are repair docks necessary? Explain.
    How to answer

    • Need for inspection, cleaning and repair of ships
    • Functions of repair docks - dry dock, slipway
    • Advantages for maintenance and safety
    • Operational requirements
15. 14 Marks
    Write a short note on:

    1. i)Keel and bilge blocks
    2. ii)Traversing slipways
    3. iii)Overturning
    4. iv)Staging System
    How to answer

    • Keel and bilge blocks - support function in dry dock
    • Traversing slipways - transverse ship transfer
    • Overturning - stability failure
    • Staging system - scaffolding for construction/repair