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For the following questions answer them individually
In plastering, the 1st coat is called ___________ and its thickness should be _______ mm.
Floating coat, 6-9
Floating coat, 10-15
Which of the following statements is true?A. Mud plastering does not require curingB. Mud plastering requires curing.C. It depends on the situation
None of these
Which of the following statements is true?
The quality of water governs the strength of concrete
The quantity of water required for concreting, depends upon the grading of aggregate andmethod of compaction
10% excess of water reduces the strength of concrete by 15%
All option are correct
In the method of voids for determination of the quantity of cement paste, it is assumed that
Voids in coarse aggregates are filled by fine aggregates
Voids in fine aggregates are filled by the cement paste
Volume of fine aggregates is equal to total voids in coarse aggregates plus 10% extra
The 28 days’ cube strength of mass concrete using aggregates of maximum size 5 cm for gravity dams should be:
between 150 to 300 kg/sq.cm
between 350 to 600 kg/sq.cm
between 150 to 500 kg/sq.cm
below 200 kg/sq.cm
What do you mean by ‘Ware house pack’ of cement?
full capacity of the warehouse
pressure exertion of the bags of upper layers
pressure compaction of the bags on lower layers
packing the ware house
Which of the following refers to the process of proper and accurate measurement of concrete ingredients for uniformity of proportion?
What are the dimensions of a 35-liter forma for measuring aggregates by volume?
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
In how many types can R.C.C. be classified into?
R.C.C. was developed and first used by:
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