Civil Engineering - Concrete Technology

21. 

Construction joints are provided

A. where B.M. and S.F. are small
B. where the member is supported by other member
C. at 18 m apart in huge structures
D. in concrete wall at sill level of windows
E. all the above.

Answer: Option E

Explanation:

No answer description available for this question. Let us discuss.

22. 

An aggregate is said to be flaky if its least dimension is less than

A. 1/5th of mean dimension
B. 2/5th of mean dimension
C. 3/5th of mean dimension
D. 4/5th of mean dimension
E. none of these.

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

23. 

The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary method of proportioning

A. 1 : 1 : 2
B. 1 : 2 : 4
C. 1 : 3 : 6
D. 1 : 2 : 8
E. 1 : 4 : 10

Answer: Option E

Explanation:

No answer description available for this question. Let us discuss.

24. 

The increased cohesiveness of concrete, makes it

A. less liable to segregation
B. more liable to segregation
C. more liable to bleeding
D. more liable for surface scaling in frosty weather
E. none of these.

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

25. 

The ratio of the length to breadth of a wooden float, is

A. 4.5
B. 5.5
C. 6.5
D. 7.5
E. 8.5

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.