Building Construction Questions (BC3)

In this post, I will share some important questions which are frequently asked in competitive examinations such as SSC, UPSC and state PSCs.


  1. What is a string course?


    1. A piece of stone projecting inside from a wall.
    2. A horizontal course of masonry projecting outside the wall.
    3. A large moulded course of masonry projecting outside the wall.
    4. None of the above

    View Answer
    Answer: b
    String course is a horizontal course of masonry provided at the roof or floor level projecting outside the wall of a building.

    Source: Pinterest

  2. What is a Corbel?


    1. A piece of stone projecting inside from a wall.
    2. A horizontal course of masonry projecting outside the wall.
    3. A large moulded course of masonry projecting outside the wall.
    4. None of the above

    View Answer
    Answer: a
    Corbel is a piece of stone projecting inside from a wall to provide support to any structural member of the roof or floor.

    Source: Pinterest

  3. What is a Cornice?


    1. A piece of stone projecting inside from a wall.
    2. A horizontal course of masonry projecting outside the wall.
    3. A large moulded course of masonry projecting outside the wall.
    4. None of the above

    View Answer
    Answer: c
    The cornice is a large moulded course of masonry provided at the ceiling level of the roof which projects outside the surface of a wall of a building.

    Source: Wikipedia

  4. Which of the following is provided at the exposed top of a wall to prevent rainwater from entering the wall?


    1. Moulding
    2. Coping
    3. Frieze
    4. Spalls

    View Answer
    Answer: b

    Source: Pinterest

  5. The position of Frieze is?


    1. Above the Cornice
    2. Below the Cornice
    3. Below the Coping
    4. Adjacent to Cornice

    View Answer
    Answer: b

    Source: Pinterest

  6. The stone which extends through the entire thickness of the wall is called ______.


    1. Templates
    2. Through Stone
    3. Buttress
    4. Spalls

    View Answer
    Answer: b

  7. Irregular projections of the quarried stone are removed by _________.


    1. Scabbling Dressing
    2. Hammer Dressing
    3. Rough tooled Dressing
    4. Tooled Dressing

    View Answer
    Answer: a
    Irregular projections of the quarried stone are removed by Scabbling Dressing which is usually done at the quarry.

  8. The depth of gap between the surface and a straight edge held against the surface shall not exceed _____ in case of rough dressing.


    1. 3 mm
    2. 5 mm
    3. 8 mm
    4. 10 mm

    View Answer
    Answer: a
    As per IS 1129, Cl 2.4, The depth of gap between the surface and a straight edge held against the surface shall not exceed 3 mm in case of rough and punched dressing.

  9. By which type of stone dressing smooth surface is obtained?


    1. Cut stone Dressing
    2. Rubbed Dressing
    3. Polished Dressing
    4. Punched Dressing

    View Answer
    Answer: b

  10. The stone masonry made of properly dressed stone is called ______.


    1. Random Rubble Masonry
    2. Coursed Rubble Masonry
    3. Ashlar Masonry
    4. None of the above

    View Answer
    Answer: c

  11. What is the minimum and maximum width of a cavity in a cavity wall?


    1. 50 mm and 100 mm
    2. 50 mm and 75 mm
    3. 75 mm and 100 mm
    4. 100 mm and 150 mm

    View Answer
    Answer: b

  12. Which of the following can be used as DPC?


    1. Mastic Asphalt
    2. Bitumen felt
    3. Metal Sheets
    4. All of the above

    View Answer
    Answer: d

  13. Which of the following stone is used as DPC?


    1. Basalt
    2. Sand Stone
    3. Shale
    4. Slate

    View Answer
    Answer: d

  14. At what height above ground level, DPC is provided in the external walls?


    1. 100 mm to 150 mm
    2. 150 mm to 200 mm
    3. 200 mm to 250 mm
    4. 250 mm to 300 mm

    View Answer
    Answer: b

  15. Bitumen is laid hot in two layers at the rate of ______ per square metre of the surface area.


    1. 1.25 KG
    2. 1.5 KG
    3. 1.75 KG
    4. 2.5 KG

    View Answer
    Answer: c






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