Civil Engineering - Concrete Technology

41. 

Concrete mainly consists of

A. cement
B. aggregates
C. admixture
D. water
E. all the above.

Answer: Option E

Explanation:

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42. 

Vicat's apparatus is used for

A. fineness test
B. consistency test
C. setting time test
D. soundness test
E. compressive strength test.

Answer: Option B

Explanation:

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43. 

M 150 grade of concrete approximates

A. 1 : 3 : 6 mix
B. 1 : 1 :2 mix
C. 1 : 2 : 4 mix
D. 1 : 1.5 : 3 mix
E. none of these.

Answer: Option B

Explanation:

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44. 

Workability of concrete is measured by

A. Vicat apparatus test
B. Slump test
C. Minimum void method
D. Talbot Richard test.

Answer: Option B

Explanation:

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45. 

The rock which is not calcareous, is :

A. lime stone
B. macl
C. chalk
D. laterite
E. none of these.

Answer: Option D

Explanation:

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