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

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Construction Planning and Management
Pick up the correct statement from the following with regards to C.P.M. network analysis of projects

The latest occurrence time for the node at which the activity arrow terminates, is called latest finish time
The latest occurrence time of the node of which the activity arrow terminates minus the duration of the activity, is called latest start time
All listed here
Earliest occurrence time of the event from which the activity arrow' originates, is called earliest start time of the activity

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Construction Planning and Management
Latest start of an activity is always

greater than or equal to latest event time of preceding node
equal to latest event time of preceding node
less than latest event time of preceding node
less than or equal to latest event time of preceding node

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