CE-402 Construction Technology - Jun 2025 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
   aWhat are the constituent, desirable properties and types of Paints?
   How to answer

   • Constituents of paints: base, binder/vehicle, pigment, solvent/thinner, drier, additives
   • Desirable properties: opacity, durability, washability, weather resistance, adhesion
   • Types: oil paint, emulsion, enamel, distemper, cement paint, etc.
   • Suitability/uses in building work
2. 7 Marks
   bDiscuss the various techniques and methods of Damp Prevention.
   How to answer

   • Definition of dampness and causes of damp penetration
   • Techniques: membrane DPC, integral treatment, surface treatment, cavity wall, guniting
   • Methods at foundation, walls, roof, floors
   • Choice and precautions
3. 7 Marks
   aDiscuss about Pitched Roof with neat sketch.
   How to answer

   • Definition and purpose of pitched roof
   • Elements: ridge, rafter, purlin, truss, eaves
   • Types: lean-to, gable, hip, mansard etc.
   • Neat labelled sketch of pitched roof
4. 7 Marks
   bWhat are different characteristics of stones and their methods of testing. Write the name of various types of stones which are used in building work?
   How to answer

   • Characteristics of good building stones: strength, durability, hardness, porosity
   • Tests: crushing, absorption, abrasion, acid, frost resistance
   • Types used: granite, sandstone, limestone, marble, slate
   • Uses in building work
5. 7 Marks
   aWhat do you mean by efflorescence of Brick and how will you classify the efflorescence in Brick?
   How to answer

   • Definition of efflorescence in bricks due to soluble salts
   • Causes and appearance of white patches
   • Classification: slight, moderate, heavy based on extent
   • Effects and preventive measures
6. 7 Marks
   bDiscuss various technical terms used in Doors.
   How to answer

   • Frame, shutter, stile, rail, panel, louvre terms
   • Holdfast, architrave, sill, threshold, jamb
   • Types of doors context for terms
   • Sketches to illustrate terms
7. 7 Marks
   aWhat do you mean by floor finished and wall cladding? Mention some common floor finishing materials.
   How to answer

   • Meaning of floor finish and wall cladding
   • Purpose: protection, aesthetics, durability
   • Common floor finishing materials: tiles, marble, granite, wood, PVC
   • Cladding materials examples
8. 7 Marks
   bHow earthquake protection can be achieved in building. Explain.
   How to answer

   • Seismic effects on buildings and need for protection
   • Measures: ductile detailing, shear walls, bracing, base isolation
   • Foundation, symmetry, light roofs, connections
   • Codal provisions and retrofitting
9. 7 Marks
   aExplain construction method of marble flooring.
   How to answer

   • Base preparation and sub-grade/bedding
   • Laying marble slabs, levelling and jointing
   • Curing, polishing and finishing steps
   • Precautions for quality
10. 7 Marks
    bDefine foundation. What are the basic requirement of foundation? Explain different types of shallow foundation with necessary sketch.
    How to answer

    • Definition of foundation and its function
    • Basic requirements: stability, settlement control, depth, bearing capacity
    • Types of shallow foundation: isolated, combined, strip, raft/mat
    • Necessary sketches with load distribution
11. 7 Marks
    aDefine the terms scaffolding, underpinning and shoring. Explain the methods to carry out underpinning work.
    How to answer

    • Definitions of scaffolding, underpinning and shoring
    • Purpose and need for underpinning
    • Methods: pit, pile, chemical underpinning
    • Procedure, precautions and safety
12. 7 Marks
    bDescribe essential elements of a stair. Define ladders, lifts and elevators and ramp.
    How to answer

    • Essential stair elements: tread, riser, landing, stringer, baluster, handrail
    • Definitions of ladders, lifts/elevators and ramp
    • Functional differences and uses
    • Requirements for circulation
13. 7 Marks
    aWhat do you understand by temporary construction in the building? Describe the types of temporary construction with necessary sketch.
    How to answer

    • Meaning of temporary construction/supporting structures
    • Types: scaffolding, shoring, underpinning, formwork, cofferdam
    • Purpose and duration of each type
    • Necessary sketches of types
14. 7 Marks
    bWhat is the purpose of pile foundation? What are its classification based on different criterion?
    How to answer

    • Purpose of pile foundation for weak soils/high loads
    • Classification by function: end bearing, friction, combined
    • Classification by material/installation: driven, bored, cast-in-situ
    • Selection criteria
15. 7 Marks
    aDiscuss in detail about rubble masonry and ashlar masonry.
    How to answer

    • Definition of stone masonry and rubble masonry types
    • Ashlar masonry types: fine, rough, quarry faced
    • Comparison of construction, joints and finish
    • Uses and suitability
16. 7 Marks
    bIllustrate about the formwork of concrete in construction technology.
    How to answer

    • Definition and purpose of formwork/centering
    • Components: shuttering, staging, props, bracing
    • Materials and types: timber, steel, plywood
    • Stripping time, precautions and example