Concrete Technology MCQs Set-2

March 19, 2021

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1. The workability of concrete by slump test is expressed as

2. The percentage of voids in cement is approximately

3. For a structure subjected to the action of sea water, the cement used is

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

5. In lime concrete, lime is used as

6. The top diameter, bottom diameter and height of the mould used for slump test are respectively

7. 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

8. Which of the following ingredient of cement when added in excess quantity, causes the cement to set slowly?

9. In concrete mix design, allowance for bulking of sand is necessary in case of

10. The fineness modulus of an aggregate is roughly proportional to


 

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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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