Construction Planning and Management
Optimistic time, most likely time and pessimistic times for the activities of a network in the given figure are written above their arrows. If the contractual obligation time for the project is 75, the latest occurrence time for the event 2, is

20
15
35
25

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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?

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

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Construction Planning and Management
Consider the following statements for a power shovel: (i) Output can be increased by reducing the angle of swing for a given depth of cut. (ii) For a given angle of swing, output will be maximum at optimum depth of cut. (iii) Output can be increased by keeping the depth of cut less than optimum depth. (iv) Output can be increased by increasing the size of shovel.

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

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Construction Planning and Management
Whenever an activity has zero total float, then

Free float and independent float both need not be zero
Free float of the activity must be zero but independent float need not be zero
Free float and independent float both must be zero
Independent float must be zero but free float need not be zero

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