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Civil Engineering Practice Test: Concrete Technology and Design
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Concrete Technology is about the properties of concrete needed in construction applications, including strength and durability, and provides guidance on all aspects of concrete from mix design to batching, mixing, transporting, placing, consolidating, finishing, and curing.

There are two types of concrete mixes, i.e. nominal mix and design mix. Nominal mix is used for normal construction works such as small residential buildings. Most popular nominal mix are in the proportion of 1:2:4.

Civil Engineering Practice Test: Concrete Technology and Design
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25 Questions

1. For walls, columns and vertical faces of all structural members, the form work is generally removed after
2. The cement whose strength is a little lower than the ordinary cement during the first three months but attains afterwards the same strength, is known as
3. The temperature reinforcement in the vertical slab of a T-shaped R.C. retaining wall is
4. Pick up the correct statement from the following:
5. The maximum percentage of chemical ingredient of cement is that of
6. 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
7. According to IS : 382-1963, a good aggregate should be
8. As compared to ordinary Portland cement, use of pozzolana cement
9. Pick up the correct statement from the following:
10. To obtain a very high strength concrete, use very fine grained
11. Increase in the moisture content in concrete
12. The approximate value of the ratio between direct tensile strength and flexural strength is
13. Pick up the incorrect statement from the following:
14. Pozzolanic properties exist in
15. The design yield stress of steel according to IS: 4561978 is
Where fy is the characteristic yield strength of steel:
16. In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided on (i) Bottom face near counterfort (ii) Top face near counterfort (iii) Bottom face near centre of span (iv) Top face near centre of span
The correct answer is
17. Pick up the correct statement from the following:
18. The preliminary test is repeated if the difference of compressive strength of three test specimens, exceeds
19. Examine the following statements: (i) Factor of safety for steel should be based on its yield stress, (ii) Factor of safety for steel should be based on its ultimate stress, (iii) Factor of safety for concrete should be based on its yield stress, (iv) Factor of safety for concrete should be based on its ultimate stress.
The correct statements are
20. Most common method of pre-stressing used for factory production is
21. To determine the modulus of rupture, the size of test specimen used is
22. Addition of pozzolana to ordinary port land cement, causes
23. The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary method of proportioning
24. The percentage of reinforcement in case of slabs, when high strength deformed bars are used is not less than
25. The main reinforcement in the toe of a T-shaped R C. retaining wall is provided on (i) Top face parallel to the wall (ii) Top face perpendicular to the wall (iii) Bottom face parallel to the wall (iv) Bottom face perpendicular to the wall
The correct answer is