Construction Planning and Management
A machine costs Rs. 20000 and its useful life is 8 years. The money is borrowed at 8% interest per annum. The capital recovery factor at 8% interest per annum for 8 years is 0.174. The annual equipment cost of the machine will be

Rs. 5220
Rs. 6960
Rs. 3480
Rs. 1740

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

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

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