Concrete Technology MCQs Set-2

March 19, 2021

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1. Low percentage of tricalcium silicate and high percentage of dicalcium silicate in cement result in

2. According to IS: 456-1978, minimum period stipulated for moist curing of concrete using ordinary Portland cement is

3. Lime when added in excess quantity

4. The presence of entrained air in concrete results in

i) reducing bleeding

ii) lowering density of concrete

iii) decreasing strength at all ages

The correct answer is

5. The aggregate which pass through 4.75 mm IS sieve and entirely retain on 75 micron IS sieve is called

6. Addition of sugar in concrete (about 0.05% of weight of cement) results in

7. The test conducted in the laboratory on the specimen made out of trial concrete mix is called

8. The aggregate is said to be flaky when

9. According to IS: 456-1978, the maximum water-cement ratio in plain concrete to ensure durability in mild exposure is limited to

10. The material having particle size varying from 0.002 to 0.06 mm is termed as


 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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