Concrete Technology (Civil Engineering) - MCQs
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Q1. |
An air entraining agent when added in concrete improves : |
- A. strength
- B. workability
- C. density
- D. durability
Q2. |
For making impermeable concrete, the process contains : |
- A. through mixing
- B. proper compaction
- C. proper curing
- D. all of these
Q3. |
Strength of concrete is directly proportional to : |
- A. cement water ratio
- B. water cement ratio
- C. sand cement ratio
- D. water aggregate ratio
Q4. |
After casting ,on ordinary cement concrete on drying : |
- A. shrinks
- B. expands
- C. remain unchanged
- D. can expend or strink
Q5. |
Strength of concrete increases with increases in : |
- A. water cement ratio
- B. size of aggregate
- C. aggregate cement ratio
- D. moisture content
Q6. |
Approximate ratio of strength of cement concrete at 3 months to that at 28 days of curing is : |
- A. 1.15
- B. 1.30
- C. 1.0
- D. 0.75
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