Civil Engineering - Concrete Technology
Exercise :: Concrete Technology - Section 5
| 1. |
Concrete is unsuitable for compaction by a vibrator if it is |
| A. |
dry | | B. |
earth moist | | C. |
semi-plastic | | D. |
plastic | | E. |
none of these. |
Answer: Option D
Explanation:
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| 2. |
Inert material of a cement concrete mix, is |
| A. |
water | | B. |
cement | | C. |
aggregate | | D. |
none of these. |
Answer: Option C
Explanation:
|
| 3. |
Sands of zone I are |
| A. |
coarse | | B. |
medium | | C. |
medium to fine | | D. |
fine. |
Answer: Option A
Explanation:
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| 4. |
The lower water cement ratio in concrete, introduces |
| A. |
smaller creep and shrinkage | | B. |
greater density and smaller permeability | | C. |
improved frost resistance | | D. |
greater wear resistance and improved bond strength | | E. |
all the above. |
Answer: Option E
Explanation:
|
| 5. |
The cement becomes useless if its absorbed moisture content exceeds |
Answer: Option E
Explanation:
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