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GATE (CE) 2022: BUILDING MATERIALS #9 (App update required to attempt this test)

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Question 1

Correct statement regarding final setting time is

I. Final setting should not be more than 10 hours.

II. To find final setting time cement paste is made of consistency 0.85 P

III. For final setting time test annual coller is attached in place of square needle

Question 2

Match the following

Question 3Multiple Correct Options

Which of the options are correct for a 3m³ of concrete having design mix proportion of 1 : 2 : 7 (by volume)

Question 4

If in a concrete mix, the fineness modulus of coarse aggregate is 7.6, the fineness modulus of fine aggregate is 2.8 and the economic value of the fineness modulus of combined aggregate is 6.4, then the percentage proportion of coarse aggregate is

Question 5

Why is super plasticizers added to concrete?

1) To reduce the quantity of mixing water

2) To increase the consistency

3) To reduce the quantity of cement

4) To increase resistance to freezing and thawing

Select the correct answer using the codes below:

Question 6

Which defect is generally occur when excess amount of sulphur is present during the manufacturing of steel?

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ESE & GATE CE Building Materials

Nov 6ESE & GATE CE