Q. Log Angles machine is used to test the aggregate for
✅ Correct Answer: (C)
abrasion resistance
Concrete Technology MCQs | Page - 5
Dear candidates you will find MCQ questions of Concrete Technology 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. Pozzolanic properties exist in
✅ Correct Answer: (D)
all the above
Q. Workability improved by adding
✅ Correct Answer: (D)
all the above
Q. If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is
✅ Correct Answer: (A)
M 10
Q. For proper mixing about…………. revolution are required.
✅ Correct Answer: (D)
25 to 30
Q. The process of mixing, transporting, placing and compacting concrete should not take more than ……. min any case.
✅ Correct Answer: (A)
90
Q. Commonly use retarders is……
✅ Correct Answer: (D)
All of the above
Q. The main object of compaction of concrete, is:
✅ Correct Answer: (C)
to provide intimate contact between the concrete and embedded materials
Q. The setting time of cement is the governing factor for
✅ Correct Answer: (D)
all of these
Q. Bulk specific gravity of an aggregate is defined as
✅ Correct Answer: (B)
the weight of oven dry aggregate divided by its absolute volume, including the natural pores in the aggregate particles
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