Civil Engineering :: Concrete Technology
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Pick up the correct statement from the following:
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Specified compressive strengh of concrete is obtained from cube tests at the end of
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An aggregate is said to be flaky, if its least dimension is less than
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Pick up the incorrect statement from the following:
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The percentage of the aggregate of F.M. 2.6 to be combined with coarse aggregate of F.M. 6.8 for obtaining the aggregates of F.M. 5.4, is
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The final operation of finishing floors, is known as
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The internal dimensions of a ware house are 15 m x 5.6 m, and the maximum height of piles is 2.70 m, the maximum number of bags to be stored in two piles, are
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For an ordinary Portland cement
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The maximum thickness of concrete floor of a cement warehouse, is
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A construction joint is provided where
A.
A rich mix of concrete possesses higher strength than that a lean mix of desired workability with excessive equantity of water |
B.
The strength of concrete decreases as the water cement ratio increases |
C.
If the water cement ratio is less than 0.45, the concrete is not workable and causes honey-combed structure |
D.
Good compaction by mechanical vibrtions, increases the strength of concrete |
E.
None of these. |