## Lakshya Education MCQs

Question: The percentage of voids in cement is approximately
Options:
 A. 25% B. 40% C. 60% D. 80%

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## More Questions on This Topic :

Question 1. According to Whitney’s theory, ultimate strain of concrete is assumed to be
1.    0.03%
2.    0.1%
3.    0.3%
4.    3%
Question 2. The percentage of reinforcement in case of slabs, when high strength deformed bars are used is not less than
1.    0.15
2.    0.12
3.    0.30
4.    1.00
Question 3. When shear stress exceeds the permissible limit in a slab, then it is reduced by
1.    Increasing the depth
2.    Providing shear reinforcement
3.    Using high strength steel
4.    Using thinner bars but more in number
Question 4. In working stress design, permissible bond stress in the case of deformed bars is more than that in plain bars by
1.    10%
2.    20%
3.    30%
4.    40%
Question 5. Ultimate strength of cold drawn high steel wires
1.    increases with increase in diameter of bar
2.    decreases with increase in diameter of bar
3.    does not depend on diameter of bar
4.    none of the above
Question 6. For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be
1.    0.75 - 0.80
2.    0.80 - 0.85
3.    0.85 - 0.92
4.    Above 0.92