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Civil Engineering - Concrete Technology

Exercise : Concrete Technology - Section 4
31.
The dimensions of a 35 litre forma for measuring aggregates by volume, are :
length 30 cm, breadth 25 cm, height 30 cm
length 39 cm, breadth 25 cm, height 32 cm
length 27 cm, breadth 27 cm, height 48 cm
length 220 cm, breadth 25 cm, height 40 cm
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
The shuttering of a hall measuring 4 m x 5 m, can be removed after
5 days
7 days
10 days
14 days
21 days
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Pick up the correct statement from the following:
There should not be any loss of cement from the charged drum of the mixer
Cement should be mixed for at least one minute
10% of water is placed in the rotating drum before adding dry material
10% of water is added after placing the other ingredients in the drum
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
If 50 kg of fine aggregates and 100 kg of coarse agregates are mixed in a concrete whose water cement ratio is 0.6, the weight of water required for harsh mix, is
8 kg
10 kg
12 kg
14 kg
15 kg.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
The entrained air in concrete
increases workability
decreases workability
decreases resistance to weathering
increases strength
neither affects workability nor strength.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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