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.

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
Both A and R is true and R is the correct explanation of A

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Construction Planning and Management
Output of a bulldozer is (i) Increased if drawbar HP of the tractor is increased for a given hauling distance (ii) Decreased if drawbar HP of the tractor is increased for a given hauling distance (iii) Increased if the hauling distance is increased for a given drawbar HP of the tractor (iv) Decreased if the hauling distance is increased for a given drawbar HP of the tractor

(ii) and (iv) are correct
(i) and (iv) are correct
(ii) and (iii) are correct
(i) and (iii) are correct

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