If the excavation of earth is done manually then it costs Rs. 10 per cum. A machine can excavate at a fixed cost of Rs. 4000 plus a variable cost of Rs. 2 per cum. The quantity of earth for which the cost of excavation by machine will be equal to the cost of manual excavation is_________________?

Related Mcqs:

The area under the Beta – distribution curve is divided into two equal parts by_______________?

A. most likely time B. optimistic time C. pessimistic time D. expected time...

If the output of a dragline for 90° angle of swing at optimum depth of cut is X, then the output for 120° angle of swing at 120 % of optimum depth of cut will be_________________?

A. equal to X B. more than X C. less than X D. any of the above...

Sinking fund is_______________?

A. the fund for rebuilding a structure when its economic life is over B. raised to meet maintenance costs C. the total sum to be paid to the municipal authorities by the tenants D. a part of the money kept in reserve for providing additional structures and structural modifications...

In time-cost optimization of a project, crashing is done____________?

A. on all the activities B. on all the activities lying on the critical path C. only on activities lying on the orginal critical path and having flatter cost slopes D. on original critical activities and those that become critical at any stage of crashing in the order of ascending cost slope...

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. Both A and R are true and R is the correct explanation of A B. Both A and R are true but R is not the correct explanation of A C. A is true but R is false D. A is false but R is true...