Civil Engineering - Concrete Technology
Exercise :: Concrete Technology - Section 1
| 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:
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| 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:
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| 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:
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| 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:
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| 25. |
The ratio of the length to breadth of a wooden float, is |
Answer: Option D
Explanation:
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