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Construction Planning and Management - Interview Questions and Answers

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36. A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistence of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will
A. reduce by 200 kg
B. increase by 200 kg
C. increase by 250 kg
D. reduce by 250 kg
Explanation:
37. 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. Select the correct answer.
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.
Explanation:
38. The independent float affects only
A. preceding activities
B. succeeding activities
C. the particular activity involved
D. none of the above
Explanation:
39. 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
Explanation:
40. Updating may result in
A. change of critical path
B. decrease of project completion time
C. increase of project completion time
D. all of the above
Explanation: