871. The probability of completion of any activity within its expected time is_________________?
A. 50%
B. 84.1%
C. 99.9%
D. 100%
✅ The correct answer is option A.
Civil Engineering
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872. The constraints in case of resource smoothening operation would be_______________?
A. resources
B. project duration time
C. both resources and project duration time
D. none of the above
✅ The correct answer is option B.
873. In resources levelling________________?
A. total duration of project is reduced
B. total duration of project is increased
C. uniform demand of resources is achieved
D. cost of project is controlled
✅ The correct answer is option C.
874. 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/-
✅ The correct answer is option A.
875. 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_______________?
A. 10000 kg
B. 12500 kg
C. 22500 kg
D. 5000 kg
✅ The correct answer is option B.
876. If an activity has its optimistic, most likely and pessimistic times as 2, 3 and 7 respectively, then its expected time and variance are respectively___________________?
A. 3.5 and 5/6
B. 5 and 25/36
C. 3.5 and 25/36
D. 4 and 5/6
✅ The correct answer is option C.
877. Latest start of an activity is always________________?
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.
878. For a given activity, the optimistic time, pessimistic time and the most probable estimates are 5, 17 and 8 days respectively, The expected time is__________________?
A. 8 days
B. 9 days
C. 10 days
D. 15 days
✅ The correct answer is option B.
879. Economic saving of time results by crashing_________________?
A. cheapest critical activity
B. cheapest non-critical activity
C. costliest critical activity
D. costliest non-critical activity
✅ The correct answer is option A.
880. Total float for any activity is defined as the difference between________________?
A. its latest finish time and earliest start time for its successor activity
B. its latest start time and earliest start time
C. its latest start time and earliest finish time
D. its earliest finish time and earliest start time for its successor activity
✅ The correct answer is option B.