Multiple Choice Question (2)

361) For a given depth of flow in a canal the velocity with keeps the canal free from silting and scouring is called

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Critical velocity

362) The relationship between duty (D) and delta (∆) is expressed as

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8.64B/∆

363) The crest level of an emergency spill way is kept at

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At the full reservoir level

364) The location of a well is considered to be good if it is shunted into

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Sand

365) The construction joints in buildings are provided after

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40m

366) If 20 kg of coarse aggregate is sieved through 80mm 40mm 10mm 4.75mm 2.36mm 1.18mm 600 micron and 150 micron standard sieves and the weights retained are 0kg 2kg 8kg 6kg 4kg respectively the fitness modulus of the aggregate is

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7.40kg

367) Pick up the correct proportions of chemical ingredients of cement

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Lime: silica: alumina: iron oxide: 63: 22: 6: 3

368) The main function of a mabhole in a sewer line is

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Cleaning of sewer

369) If the head of water is more than 100m then the types of pipe used is

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GI

370) A water which does not contain harmful impurities and does Contain other salts and impurities either good for health or unharmful to health is called

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Wholesale water

Subject Notes

Objective Box

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