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

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Construction Planning and Management
Free float for any activity is defined as the difference between

its earliest finish time and earliest start time for its successor activity
its latest finish time and earliest start time for its successor activity
its earliest finish time and latest start time for its successor activity
its latest start time and earliest start time

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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

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

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Construction Planning and Management
Free float is mainly used to

Identify the activities which can be delayed without affecting the total float of either the preceding or succeeding activities
Identify the activities which can be delayed without affecting the total float of preceding activity
Establish priorities
Identify the activities, which can be delayed without affecting the total float of succeeding activity

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