STUDY LESSON:-54 [CIVIL ENGINEERING]
For Competitive exams/Govt. jobs/Semester exam/Self Study Purpose
2. The chemical composition test (lime saturation factor) value should not be more than ___________ and not less than __________
a) 1, 0.5 b) 1.02, 0.66 c) 1.06, 0.74 d) none of these
3. Specific surface increases with the reduction in the _____________
a) size of aggregate b) shape of aggregate c) sp. gravity of aggregate d) Texture of aggregate
4. Modified lignosulphonates (MLS) is a class of ____________
5. ______________ is usually determined by measuring the change with time in the strain of specimen subjected to a constant stress and stored under appropriate condition.
6. Surface hardness tests, combined methods, penetration and pull methods are the type of ___________
7. High Density concrete structures are generally used for _____________
a) Dam structures b) Road construction c) Radioactive projects d) None of these
8. ______________ = (Number of cycles at the end of test x Percentage of original modulus) / 300
9. Abram's law is depended on the factor of the ___________
a) strength of concrete b) Grading of concrete c) Water-cement Ratio d) workability.
10. The reduction of Ca(OH)² improves the _____________ of cement paste.
a) Strength b) Workability c) Elasticity d) Durability
Answers:-
1. Hydrophobic
2. b) 1.02, 0.66
3. a) size of aggregate
4. super-plasticizer
5. Creep
6. Non Destructive method.
7. c) Radioactive projects
8. The durability factor
9. c) Water-cement Ratio
10. d) Durability
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