Construction Planning and Management MCQs

21. 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_______________?

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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
✅ The correct answer is option A.

22. 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________________?

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A. Rs.1740
B. Rs.3480
C. Rs.5220
D. Rs.6960
✅ The correct answer is option B.

23. A father notes that when his teenage daughter uses the telephone, she takes not less than 6 minutes for a call and som? times as much as an hour. Fifteen minutes call are more frequent than calls of any other duration. If these phone calls were an activity in PERT project, then phone calls expected duration will be_______________?

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A. 15 minutes
B. 20.143 minutes
C. 21 minutes
D. 27 minutes
✅ The correct answer is option C.

27. 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__________________?

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A. Rs. 8,43,750/-
B. Rs. 8,75,000/-
C. Rs. 10,50,000/-
D. Rs. 11,56,250/-
✅ The correct answer is option A.

28. A wheeled tractor hauling unit is working on firm earth. The total loaded weight distribution of this unit is: Drive wheels : 25000 kg Scraper wheels : 10000 kg If the coefficient of traction for wheeled tractor on firm earth is 0.5, the rimpull which this tractor can exert without slipping is_______________?

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A. 10000 kg
B. 12500 kg
C. 22500 kg
D. 5000 kg
✅ The correct answer is option B.

30. Latest start of an activity is always________________?

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A. greater than or equal to latest event time of preceding node
B. less than or equal to latest event time of preceding node
C. equal to latest event time of preceding node
D. less than latest event time of preceding node
✅ The correct answer is option A.