Structural Design ( RCC )

41) Curing period required is minimum for the concrete using

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Rapid hardening cement

42) In concrete mix design, allowance for bulking of sand is necessary in case of

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Volume batching only

43) Minimum water-cement ratio required for full hydration of cement is

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0.36

44) For a constant water-cement ratio, decrease in aggregate-cement ratio causes

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Increase in workability

45) Soundness test of cement by Le- Chatelier’s apparatus gives unsoundness due to

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Free lime only

46) If the angularity number of an aggregate is increased, then the workability of the concrete using this aggregate will

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Decrease

47) For a given aggregate content, increasing the water-cement ratio in concrete

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Increases shrinkage

48) Endurance limit of mild steel is approximately equal to

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0.5

49) Which of the following has high strength?

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Cold drawn wires

50) In a spherical dome the hoop stress due to a concentrated load at crown is

Discuss in Comment

Tensile everywhere

Subject Notes

Objective Box

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