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GATE CE 2020: Building Materials Quiz 2
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Question 1
The slump recommended for mass concrete is about:
Question 2
The result of Vee-Bee test is expressed in terms of:
Question 3
Consider the following statements for air-entrained concrete
(i) Air-entrainment reduces the water demand for a given level of workability
(ii) Use of air-entrained concrete is required in environments where cyclic freezing and thawing is expected
Which of the following is TRUE ?
Question 4
What is target mean strength (N/mm2) of the M30 grade concrete, if the standard deviation is 5.0?
Question 5
Consider the following statements:
Entrainment of air in concrete is done so as to
1) Increase the workability.
2) Increase the strength.
3) Increase the resistance to freezing and thawing.
Which of these statements is/are correct?
Entrainment of air in concrete is done so as to
1) Increase the workability.
2) Increase the strength.
3) Increase the resistance to freezing and thawing.
Which of these statements is/are correct?
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Feb 23ESE & GATE CE
