Construction Planning and Management
An earth moving equipment costs Rs. 5,00,000 and has an estimated life of 10 years and a salvage value of Rs. 50,000. What uniform annual amount must be set aside at the end of each of the 10 years for replacement if the interest rate is 8% per annum and if the sinking fund factor at 8% per annum interest rate for 10 years is 0.069?

Rs. 34500
Rs. 50000
Rs. 31050
Rs. 37950

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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
A is false but R is true
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
In time-cost optimization of a project, crashing is done.

On original critical activities and those that become critical at any stage of crashing in the order of ascending cost slope
On all the activities lying on the critical path
Only on activities lying on the original critical path and having flatter cost slopes
On all the activities

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