41. The differential settlement in case of foundations on sandv soils should not exceed_____________?
A. 25 mm
B. 40 mm
C. 65 mm
D. 100 mm
✅ The correct answer is option A.
Building Materials and Construction MCQs
42. For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of___________________?
A. 1:2
B. 1:3
C. 1:4
D. 1:6
✅ The correct answer is option B.
43. Pitched and sloping roofs are suitable for________________?
A. coastal regions
B. plain regions
C. covering large areas
D. all of the above
✅ The correct answer is option A.
44. As compared to stretcher course, the thickness of joints in header course should be_____________?
A. less
B. more
C. equal
D. equal or more
✅ The correct answer is option A.
45. The number of steps in a flight generally should not be less than________________?
A. 2
B. 3
C. 5
D. no limit
✅ The correct answer is option B.
46. Single flemish bond consists of___________________?
A. double flemish bond facing and Eng-lish bond backing in each course
B. English bond facing and double flemish bond backing in each course
C. stretcher bond facing and double flemish bond backing in each course
D. double flemish bond facing and header bond backing in each course
✅ The correct answer is option A.
47. The stone suitable for rubble masonry should be____________?
A. hard
B. tough
C. heavy
D. light
✅ The correct answer is option A.
48. As compared to English bond, double flemish bond is_________________?
A. stronger
B. more compact
C. costly
D. none of the above
✅ The correct answer is option B.
49. The main function of alumina in brick earth is_______________?
A. to impart plasticity
B. to make the brick durable
C. to prevent shrinkage
D. to make the brick impermeable
✅ The correct answer is option A.
50. The predominant constituent which is responsible for strength in granite is_____________?
A. quartz
B. feldspar
C. mica
D. none of the above
✅ The correct answer is option A.