Building Construction Technology Online Test

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Vikash chaudhary

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Total Questions: 30
Time Allotted: 30 minutes
Passing Score: 50%
Randomization: Yes
Certificate: No
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1 / 30

1. For a given water content, workability decreases if the concrete aggregates contain an excess of:

a) thin particles

b) flat particles

c) elongated particles

d) all of the above

2 / 30

2. If the water-cement ratio of concrete is 0.6, then water required for mixing concrete is:

a) 8 kg

b) 10 kg

c) 12 kg

d) 30 kg

3 / 30

3. The self-weight of the footing is not considered:

a) while calculating the upward soil pressure

b) while calculating the area of footing

c) both (a) and (b) of the above

d) none of the above

4 / 30

4. The type of aggregate of the same nominal size, which contains fewer voids when compacted, is:

a) rounded aggregate

b) irregular aggregate

c) angular aggregate

d) flaky aggregate

5 / 30

5. Damp proofing course is done:

a) Along the walls of the building

b) Along the floors of the building

c) Along the walls and floor of the building

d) Along the walls, beams, and floor of the building

6 / 30

6. The bulk density of an aggregate does not depend upon:

a) Size and shape of aggregates

b) Specific gravity of aggregates

c) Grading of aggregates

d) Size and shape of the container

7 / 30

7. In brick masonry, the bond produced by laying alternate headers and stretchers in each course is known as:

a) english bond

b) double flemish bond

c) flemish bond

d) garden wall bond

8 / 30

8. With the rise in the temperature of atmospheric air, the setting time of cement:

a) Increases

b) Decreases

c) Remains affected

d) All of the above

9 / 30

9. In three-coat plastering, the third coat is known as:

a) Setting coat

b) Finishing coat

c) Both (a) and (b)

d) None of the above

10 / 30

10. An aggregate is said to be flaky if its least dimension is less than:

a) 2/3 mean dimension

b) 3/4 mean dimension

c) 3/5 mean dimension

d) 2/3 mean dimension

11 / 30

11. Width of wall footing (according to thumb's rule) is: (where t = thickness of the wall)

a) 2t+150

b) 2t+300

c) 2t

d) t+300

12 / 30

12. Bulking of sand is:

a) mixing of different sizes of sand particles

b) mixing of lime with sand

c) mixing of water with sand

d) swelling of sand when wetted

13 / 30

13. Higher workability of concrete is required if the structure is:

a) Made with cement

b) Thick and reinforced

c) Thin and heavily reinforced

d) Thick and heavily reinforced

14 / 30

14. In stairs, a flier is:

a) Straight step having parallel width of tread

b) The under surface of stair

c) Series of steps without any platform in their direction

d) Moulding provided under nosing

15 / 30

15. Cement provides strength, durability, and water-tightness to concrete because:

a) Water-cement paste hardens due to hydration

b) During hardening, cement binds the aggregates together

c) Cement provides strength, durability, and water-tightness to concrete

d) All of the above

16 / 30

16. The area covered by flat brick soling is approximately... times for brick on edge:

a) 2

b) 1.5

c) 1

d) 0.5

17 / 30

17. The work of finishing the mortar joints along with the wall construction is known as:

a) toothing

b) pointing

c) racking back

d) jointing

18 / 30

18. Carpet area of a building does not include the area of:

a) The walls along with doors and other opening

b) Verandah, corridor, and passage

c) Bathroom and lavatory kitchen and pantry

d) All of the above

19 / 30

19. If the compaction factor is 0.95, the workability of concrete is:

a) very low

b) low

c) medium

d) high

20 / 30

20. The approximate ratio of strength of cement concrete at 1 year to that at 28 days of curing is:

a) 1.15

b) 1.3

c) 1

d) 0.75

21 / 30

21. The load-bearing cantilever projection from the face of a masonry wall is called:

a) header

b) stretcher

c) corbel

d) cornice

22 / 30

22. A bifurcated stair is normally used in:

a) Residential building

b) Office building

c) Modern public building

d) None of the above

23 / 30

23. For concreting of tunnel linings, transportation of concrete is done by:

a) Pans

b) Wheelbarrows

c) Containers

d) Pumps

24 / 30

24. A flaky aggregate is said to be elongated if its greatest dimension (length) is greater than:

a) one-fifth of the mean size

b) nine-fifths of the mean size

c) two-fifths of the mean size

d) seven-fifths of the mean size

25 / 30

25. ISI has specified the full strength of concrete after:

a) 7 days

b) 15 days

c) 21 days

d) 28 days

26 / 30

26. The floor height of a 3 m building is connected to 17 numbers of tread/going; the number of risers is:

a) 16

b) 18

c) 15

d) 17

27 / 30

27. In Nepal, the generally used method of bond in masonry wall of brickwork is:

a) english bond

b) flemish bond

c) stretcher bond

d) header bond

28 / 30

28. 'Curing' as used in concrete and cement plaster is a process that helps these gain:

a) Shiny surface

b) Rigidity

c) Smooth surface

d) Early strength

29 / 30

29. High temperature:

a) Increases the strength of concrete

b) Decreases the strength of concrete

c) No effect on the strength of concrete

d) None of the above

30 / 30

30. The course of stone placed immediately below the cornice along the face of the wall is:

a) frieze

b) corbel

c) arrise

d) cornice

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