Welcome to your Concrete Technology Mock test - 4
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1) Water cement ratio is generally expressed in volume of water required per
2) An aggregate which passes through 25 mm I.S. sieve and is retained on 20 mm sieve, is said to be flaky if its least dimension is less than
3) Gypsum is added for
4) Sand requiring a high water cement ratio, belongs to
5) A flaky aggregate is said to be elongated if its length is
6) If the effective plan area of a warehouse is 54 sq. m, and maximum height of piles permitted is 270 cm, the number of cement bags to be stored, is
7) If aggregates completely pass through a sieve of size 75 mm and are retained on a sieve of size 60 mm, the particular aggregate will be flaky if its minimum dimension is less than
8) To prevent segregation, the maximum height for placing concrete, is
9) The dimensions of a 35 litre forma for measuring aggregates by volume, are :
10) Expansion joints are provided if the length of concrete structures exceeds
11) Cement used for normal concrete construction, is obtained by burning a mixture of
12) Pick up the incorrect statement from the following:
13) Pick up the incorrect statement from the following. While performing preliminary test on concrete
14) Log Angles machine is used to test the aggregate for
15) Pick up the incorrect statement from the following:
16) The shuttering of a hall measuring 4 m x 5 m, can be removed after
17) A concrete having a slump of 6.5 cm, is said to be
18) The entrained air in concrete
19) Setting time of cement increases by adding
20) The process of mixing, transporting, placing and compacting concrete using Ordinary Port land Cement should not take more than
21) If the slump of a concrete mix is 60 mm, its workability is
22) Strength of concrete with passage of time
23) 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
24) If fineness modulus of sand is 2.5, it is graded as
25) Higher workability of concrete is required if the structure is