Q. The grade of concrete not recommended by I.S. : 456, is

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Q. C.R.R.I. charts are used to obtain a relatioship between strength of concrete and

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Q. The compaction of concrete, improves

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Q. Pick up the correct statement from the following:

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Q. The light weight aggregates are obtained from

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Q. If the depth of moist sand in a cylinder is 15 cm and the depth of the sand when fully inundated with water is 12 cm, the bulking of the moist sand, is

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Q. Pick up the correct statement from the following:

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Q. The produce impermeable concrete

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Q. Water required per bag of cement, is

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Q. Pick up the incorrect statement from the following:

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Q. ISI has specified full strength of concrete after

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Q. For construction of structures in sea water, the cement generally preferred to, is

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Q. Proper batching ensures

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Q. Workability of concrete for a given water content is good if the aggregates, are

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Q. Pick up the correct statement from the following:

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Q. For compacting plain concrete road surface of thickness less than 20 cm, we use

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Q. Pick up the correct statement from the following:

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Q. Separation of coarse aggregates from mortar during transportation, is known

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Q. According to the recommendations of IS : 456-1978, the expansion joints

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Q. Grading of sand causes great variation in

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