Concrete Technology Mock test – 4 || Civil Engineering Mock tests




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







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