ISRO Recruitment - Building Construction 1000+ MCQ [Solved] PDF Download

1. The vertical members fixed between steps and hand rail, are known
A. Balusters
B. Strings
C. Newel posts
D. Soffits
Answer : A

2. Best type of piles for soft soil having little resistance to the flow of concrete, is
A. Simplex pile
B. Vibro pile
C. Raymond pile
D. Franki pile
Answer : B

3. The horizontal timber piece provided at the apex of a roof truss which supports the common rafter is called
A. Ridge board
B. Hip rafter
C. Eaves board
D. Valley rafter
Answer : A

4. The vertical distance between the springing line and highest point of the inner curve of an arch is known as
A. Intrados
B. Rise
C. Spandril
D. Extrados
Answer : B

5. In places where the soil is soft and has small resistance to the flow of concrete, which one of the following types of piles, is used
A. Vibro pile
B. Pressure pile
C. Franki pile
D. Pedestal pile
Answer : A

6. Pick up the incorrect statement from the following:
A. The retaining wall should be structurally capable to resist the applied earth pressure
B. The section of the retaining wall should be so proportioned that it may not overturn by the lateral pressure
C. The retaining wall should be safe against sliding
D. To drain off water from the earth retained, weep holes are provided near the top of the retaining wall
Answer : D

7. In case of Raymond pile
A. Lengths vary from 6 m to 12 m
B. Diameter of top of piles varies from 40 cm to 60 cm
C. Diameter of pile at bottom varies from 20 cm to 28 cm
D. All the above
Answer : D

8. The position of a brick when laid on its side 9 cm × 9 cm with its frog in the vertical plane, is called
A. Brick on edge
B. Brick on end
C. Brick on bed
D. Brick held vertically
Answer : B

9. The process of filling hollow spaces of walls before plastering, is known
A. Hacking
B. Dubbing out
C. Blistering
D. Peeling
Answer : B

10. For heavy embankments and dams, of height h, the depth of exploration of soil should not be less than
A. h/4
B. 1/2 h
C. h
D. 2 h
Answer : D

11. For brick construction, the lime-sand mortar, is
A. 1 : 1
B. 1 : 2
C. 1 : 3
D. 1 : 4
Answer : B

12. Pick up the correct statement from the following:
A. Isolated footing is provided under column to transfer the load safely to soil bed
B. Column footings may have steps or projections in the concrete base
C. Heavily loaded column base must be provided steel reinforcement in both directions
D. All the above
Answer : D

13. Pick up the correct statement from the following:
A. A mortar joint having a concave finishing in brick masonry, is called keyed joint
B. A mortar joint projecting beyond the face of a masonry wall, is called tucked joint
C. A mortar joint having a recess in it, is called ruled joint
D. All the above
Answer : D

14. The lower edge of the pitched roof, from where the rain water of the roof surface drops down, is known as
A. Hip
B. Gable
C. Ridge
D. Eaves
Answer : D

15. Pick up the incorrect statement from the following:
A. The function of foundation is to distribute the load of super structure over a large bearing area
B. No timbering is required for shallow trenches
C. Shallow foundations can be constructed on made-up soil
D. Black cotton soil is very good for foundation bed
Answer : D

16. Pick up the correct statement from the following:
A. Plain cement concrete is equally strong in compression as well as in tension
B. Slump test is performed to check concrete strength
C. Curing of concrete is done for proper compaction of cement
D. Fineness modulus is the index number expressing the relative sizes of both coarse and fine aggregates
Answer : D

17. The process of making the back ground rough, before plastering, is
A. Dubbing
B. Hacking
C. Blistering
D. Peeling
Answer : B

18. The entrained concrete is used in lining walls and roofs for making
A. Heat insulated
B. Sound insulated
C. Neither (a) nor (b)
D. Both (a) and (b)
Answer : D

19. Engineering news formula for obtaining safe bearing capacity of pile for drop hammer, is,
A. Q = Wh/6 (S + 2.5)
B. Q = Wh/2.5 (S + 6)
C. Q = (W × 6)/h (S + 2.5)
D. Q = (W × 2.5)/6 (S + h)
Answer : A

20. The brick laid with its breadth parallel to the face of a wall, is known as
A. Header
B. Stretcher
C. Closer
D. None of these
Answer : A

21. The concrete slump recommended for foundations, is
A. 25 to 50 mm
B. 30 to 125 mm
C. 50 to 100 mm
D. 75 to 125 mm
Answer : C

22. In the construction of arches, sand box method is used for
A. Centring
B. Actual laying of arch work
C. Striking of centring
D. None of the above
Answer : C

23. Rotary drilling
A. Is not suitable for deposits containing very coarse gravel
B. Hinders the ground water observations and permeability test
C. Is not economical for holes of less than 10 cm
D. All the above
Answer : D

24. The number of steps in a flight generally should not be less than
A. 2
B. 3
C. 5
D. No limit
Answer : B

25. The thickness of a reinforced brick partition wall, is generally kept
A. 5 cm
B. 10 cm
C. 15 cm
D. 20 cm
Answer : B

26. If height of the first storey of a building is 3.2 m and riser is 13 cm, the number of treads required, is
A. 12
B. 18
C. 24
D. 25
Answer : C

27. Pick up the correct statement from the following:
A. D.P.C. should be continuous
B. D.P.C. should be of good impervious material
C. D.P.C. may be horizontal or vertical
D. All the above
Answer : D

28. Pick up the correct statement from the following:
A. Lime mortar with cement in the ratio of in 10 is cheaper and better for outside plaster
B. For very cold or very hot climate, a compact and closed plan should be provided
C. On the sea coast, an exposed and open house is generally preferred
D. All the above
Answer : D

29. Exposed portions of vertical surface at right angles to the door or window frame, are known as
A. Jambs
B. Lintels
C. Reveals
D. Soffits
Answer : C

30. The highest line of sloping roof, where two opposite slopes meet, is known as
A. Rafter
B. Ridge
C. Crown
D. Eave
Answer : B

31. The predominant constituent which is responsible for strength in granite is
A. Quartz
B. Felspar
C. Mica
D. None of the above
Answer : A

32. The members which support covering material of a sloping roof, are
A. Rafters
B. Purlins
C. Battens
D. Struts
Answer : A

33. Raft foundation are generally preferred to when the area required for individual footing, is more than
A. 25% to total area
B. 30% of total area
C. 40% to total area
D. 50% of total area
Answer : D

34. The form work from the slabs excluding props, can be removed only after
A. 1 day
B. 4 days
C. 7 days
D. 14 days
Answer : B

35. For plastering the exposed brick walls, the cement sand mortar should be
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 1 : 6
Answer : C

36. An ordinary concrete may be made water proof by adding
A. Pudlo
B. Impermo
C. Snowcem
D. All of these
Answer : D

37. The foundation in which a cantilever beam is provided to join two footings, is known as
A. Strip footing
B. Strap footing
C. Combined footing
D. Raft footing
Answer : B

38. A wall constructed to resist the pressure of an earth filling, is called
A. Retaining wall
B. Breast wall
C. Buttress
D. Parapet wall
Answer : A

39. The additional piles which are driven to increase the capacity of supporting loads on vertical piles, are known
A. Construction piles
B. Raking piles
C. Eccentric piles
D. Sinking piles
Answer : B

40. The service area in a building means the area occupied by
A. Stairs
B. Toilets
C. Light and shafts
D. All the above
Answer : D

41. The vertical faces of a door opening which support frame of the door, are
A. Jambs
B. Posts
C. Reveals
D. Styles
Answer : A

42. Raft foundations are used for:
A. Providing increased area of foundation over poor bearing capacity of soil
B. Spanning over small soft or loose pockets
C. Counter acting the hydrostatic effect
D. All the above
Answer : D

43. The arrangement of supporting an existing structure by providing supports underneath, is known as
A. Shoring
B. Underpinning
C. Jacking
D. Piling
Answer : B

44. The stone whose crushing strength is least, is
A. Granite
B. Chalk
C. Marble
D. Slate
Answer : B

45. The function of cleats in a roof truss is
A. To support the common rafter
B. To support purlins
C. To prevent the purlins from tilting
D. All of the above
Answer : C

46. The differential settlement in case of foundations on sandy soils should not exceed
A. 25 mm
B. 40 mm
C. 65 mm
D. 100 mm
Answer : A

47. Pick up the commonly adopted geophysical method in civil engineering from the following:
A. The seismic method
B. Electrical resistivity method
C. Gravitational method
D. Both (a) and (b) of the above
Answer : D

48. Mansard roof is a roof which slopes in
A. Two directions without break in the slope on each side
B. Two directions with break in the slope on each side
C. Four directions without break in the slope on each side
D. Four directions with break in the slope on each side
Answer : D

49. The concrete slump recommended for columns, is
A. 25 to 50 mm
B. 25 to 75 mm
C. 75 to 125 mm
D. 50 to 100 mm
Answer : C

50. Nogging of a common wooden partition is
A. Upper horizontal wooden member
B. Lower horizontal wooden member
C. Intermediate horizontal wooden member
D. Vertical wooden member
Answer : C