building materials and construction MCQs – Page 3

Practise focused building materials and construction questions with marked answers for exam preparation and subject revision.

building materials and construction Mcqs

41. Addition of pozzolana to ordinary Portland cement increases__________________?
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A. permeability

B. heat of hydration

C. bleeding

D. shrinkage

42. Spalling hammer is used for_____________?
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A. rough dressing of stones

B. driving wooden headed chisels

C. carving of stones

D. breaking small projection of stones

43. The predominant constituent which is responsible for strength in granite is_____________?
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A. quartz

B. none of the above

C. feldspar

D. mica

44. The maximum total settlement for isolated foundations on clayey soils should be limited to______________?
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A. 25 mm

B. 65 mm

C. 100 mm

D. 40 mm

45. The pressure acting on the stones in stone masonry construction should be_____________?
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A. at 60 to the direction of bedding planes

B. along the direction of bedding planes

C. perpendicular to the direction of bedding planes

D. at 45 to the direction of bedding planes

46. After storage, the strength of cement________________?
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A. decreases

B. remains same

C. increases

D. may increase or decrease

47. The frog of the brick in a brick masonry is generally kept on______________?
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A. bottom face

B. longer side

C. shorter side

D. top face

48. Quick lime is (1) slow in setting (2) rapid in slacking (3) good in strength The correct answer is____________?
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A. only (1)

B. only (2)

C. both (1) and (2)

D. both (2) and (3)

49. In the construction of arches, sand box method is used for________________?
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A. none of the above

B. actual laying of arch work

C. centring

D. striking of centring

50. As compared to stretcher course, the thickness of joints in header course should be_____________?
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A. equal or more

B. more

C. equal

D. less

51. Assertion A : Paints with white lead base are not recommended for painting of iron works. Reason R : Paints with white lead base do not check rusting of iron. Select your answer according to the coding system given below ?
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A. Both A and R are true and, R is the correct explanation of A

B. Both A and R are true but R is not the correct explanation of A

C. A is true but R is false

D. A is false but R is true

52. According to IS specifications, the compressive strength of ordinary portland cement after three days should not be less than________________?
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A. 11.5 MPa

B. 21 MPa

C. 7 MPa

D. 16 MPa

53. Percentage of carbon content in mild steel is_______________?
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A. between 0.7 and 1.5

B. greater than 1.5

C. less than 0.25

D. between 0.25 and 0.7

54. The vehicle used in case of enamel paints is usually______________?
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A. varnish

B. water

C. linseed oil

D. none of the above

55. Early attainment of strength in rapid hardening cement is mainly due to_______________?
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A. tricalcium silicate

B. finer grinding

C. gypsum

D. tricalcium aluminate

56. Number of vertical joints in a stretcher course is x times the number of joints in the header course, where x is equal to_________________?
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A. 4-Jan

B. 1

C. 2

D. 1/2

57. The type of flooring suitable for use in churches, theatres, public libraries and other places where noiseless floor covering is desired is____________________?
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A. wooden flooring

B. linoleum flooring

C. cork flooring

D. glass flooring

58. Quartitze is a_____________?
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A. argillaceous rock

B. silicious rock

C. aqueous rock

D. calcareous rock

59. Which of the following stresses is used for identifying the quality of structural steel ?
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A. yield stress

B. none of the above

C. proof stress

D. ultimate stress

60. The nominal size of the modular brick is_______________?
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A. 200 mm x 200 mm x 100 mm

B. 190 mm x 190 mm x 90 mm

C. 190 mm x 90mmx 80 mm

D. 200 mm x 100 mm x 100 mm

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