Concrete Technology MCQs Set-2

March 19, 2021

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

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

3. The percentage of voids in cement is approximately

4. The function of aggregates in concrete is to serve as

5. The type of lime used in lime concrete is

6. Calcareous material used in the manufacture of cement consist of

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

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

9. 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

10. The workability of concrete by slump test is expressed 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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