Structural Design ( RCC )

241) The minimum percentage of HYSD bars to be provided in R.C.C. Walls, floors and roofs of 450 mm thick in water tanks is

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0.16

242) In water tanks, to accommodate any additional thermal displacement, expansion joints should be provided at an interval of

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30 m

243) To reduce the possibilities of cracking, generally the minimum grade of concrete used in

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M 20

244) The allowable direct tensile stress for M 20 concrete in R.C.C. water tanks is (in N/mm2)

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1.2

245) The allowable bending tensile stress for M 30 concrete in R.C.C. water tanks is (in N/mm2)

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2.0

246) In water tanks, slabs should not be concreted in lengths more than

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7.5m

247) The advantage of a concrete pile over a timber pile is

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all of the above

248) One of the preservatives used in timber piles for foundations is

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creosote oil

249) The diameter of the timber piles can be about

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120 to 350 mm

250) Generally for piles, the concrete used is of grade

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M 20

Subject Notes

→ Hydraulics → Structural Design-RCC → Irrigation Engineering → Highway Engineering → Engineering Survey → Water supply & sanitary → Soil Mechanics → Mechanics and structure → Construction Management → Building Construction → Estimating and Costing → Engineering Drawing → Building Material → Airport Engineering

Objective Box

→ Airport Engineering → Building Construction → Construction Management → Construction Materials → Engineering Drawing → Engineering Survey → Estimating and Costing → Highway Engineering → Fluid & Hydraulics → Soil Mechanics → Structural Design - RCC → Water Supply and Sanitary → Irrigation Engineering → Mechanics and Structure → Civil MCQ Set 1 → Civil MCQ Set 2 → Civil MCQ Set 3 → Civil MCQ Set 4

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