Construction Planning and Management
Assertion A: For a given depth of cut, the output of a power shovel can be increased by decreasing the angle of swing.Reason R: If the angle of swing is decreased, the cycle time will be decreased.

Both A and R is true and R is the correct explanation of A
A is true but R is false
Both A and R is true but R is not the correct explanation of A
A is false but R is true

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Construction Planning and Management
In India, are prefabricated components costlier than those of traditional cast-in-situ items that the prefabricated components replace?

No, because of repetitive manufacture of a number of elements
No, because of savings in site labour
Yes, because of the very high order of quality control for the factory made components
Yes, because of heavier overheads and handling cost

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