Q. For an ordinary Portland cement
✅ Correct Answer: (C)
initial setting time is not less than 30 minutes
Concrete Technology and Design MCQs | Page - 4
Dear candidates you will find MCQ questions of Concrete Technology and Design here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. The ratio of the diameter of reinforcing bars and the slab thickness is
✅ Correct Answer: (D)
1/8
Q. Pozzolana cement is used with confidence for construction of
✅ Correct Answer: (D)
all the above
Q. The operation of removing humps and hollows of uniform concrete surface, is known as
✅ Correct Answer: (B)
screeding
Q. 1% of voids in a concrete mix would reduce its strength by about
✅ Correct Answer: (A)
5 %
Q. For a continuous slab of 3 m × 3.5 m size, the minimum overall depth of slab to satisfy vertical deflection limits is
✅ Correct Answer: (B)
75 mm
Q. The shrinkage of concrete
✅ Correct Answer: (D)
all the above
Q. The maximum thickness of concrete floor of a cement warehouse, is
✅ Correct Answer: (D)
25 cm
Q. Too wet concrete may cause
✅ Correct Answer: (D)
all the above
Q. Maximum percentage reinforcement in case of slabs is limited to
✅ Correct Answer: (B)
4
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