Which of the following earth moving machines has the shortest cycle time?

A. Drag line
B. Hoe
C. Clam shell
D. Dipper shovel

For a given size of bucket, the ideal output of a dragline will be least in_______________?

A. Mosit loam
B. Sand and gravel
C. Good common earth
D. Wet sticky clay

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

An excavator costs Rs. 20,00,000/- and has an estimated life of 8 years. It has no salvage value at the end of 8 years. The book value of the excavator at the end of 3 years using general double declining balance method is__________________?

A. Rs. 8,43,750/-
B. Rs. 8,75,000/-
C. Rs. 10,50,000/-
D. Rs. 11,56,250/-

Which one of the following surfaces will give highest coefficient of traction while using crawler track tractors?

A. Ice
B. Concrete
C. Loose sand
D. Earth

Which of the following surfaces will give highest rolling resistance for a rubber tyred vehicle?

A. Concrete
B. Loose sand
C. Asphalt
D. Firm earth

The grade resistance factor for an earth moving machine can be obtained by multiplying grade percentage by a factor approximately equal to_________________?

A. 2 kg/tonne
B. 6 kg/tonne
C. 9 kg/tonne
D. 20 kg/tonne

A four wheel trac*or whose operating weight is 12000 kg is pulled along a road having a rising slope of 2% at a uniform speed. Assume grade resistance factor = 10 kg/tonne. The tension in the tow cable is 720 kg. The rolling resistance of the road will be___________________?

A. 20 kg/tonne
B. 30 kg/tonne
C. 40 kg/tonne
D. 50 kg/tonne

If the scheduled completion time of a project is more than the earliest expected time for completion of the project, then the probability of completion of the project within the scheduled completion time will be__________________?

A. 50%
B. Less than 50%
C. More than 50%
D. 100%

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________________?

A. Rs.1740
B. Rs.3480
C. Rs.5220
D. Rs.6960