Top 350+ Solved Concrete Technology and Design MCQ Questions Answer
Q. The process of proper and accurate measurement of concrete ingredients for uniformity ofproportion, is known
a. grading
b. curing
c. mixing
d. batching
Q. The load factors for live load and dead load are taken respectively as
a. 1.5 and 2.2
b. 2.2 and 1.5
c. 1.5 and 1.5
d. 2.2 and 2.2
Q. The mixture of different ingredients of cement, is burnt at
a. 1000°c
b. 1200°c
c. 1400°c
d. 1600°c
Q. In case of hand mixing of concrete, the extra cement to be added is
a. 5 %
b. 10 %
c. 15 %
d. 20 %
Q. If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentageof water is,
a. 20 %
b. 25 %
c. 30 %
d. 35 %
Q. For an ordinary Portland cement
a. residual does not exceed 10% when sieved through is sieve no. 9
b. soundness varies from 5 to 10 mm
c. initial setting time is not less than 30 minutes
d. compressive stress after 7 days, is not less than 175 kg/cm2
Q. The ratio of the diameter of reinforcing bars and the slab thickness is
a. 1/4
b. 1/5
c. 1/6
d. 1/8
Q. Pozzolana cement is used with confidence for construction of
a. dams
b. massive foundations
c. r. structures
d. all the above
Q. Pick up the correct statement from the following:
a. calcium chloride acts as a retarder
b. calcium chloride acts as an accelerator
c. gypsum (calcium sulphate) acts as a retarder
d. both (b) and (c)
Q. The operation of removing humps and hollows of uniform concrete surface, is known as
a. floating
b. screeding
c. trowelling
d. finishing
Q. For a continuous slab of 3 m × 3.5 m size, the minimum overall depth of slab to satisfy verticaldeflection limits is
a. 50 mm
b. 75 mm
c. 100 mm
d. 120 mm