civil engineering MCQs – Page 268

Practise multiple-choice questions from civil engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

civil engineering Mcqs
5341. Slack time refers to_______________?
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A. an activity

B. an event

C. both event and activity

D. none of the above

5342. In PERT analysis, the time estimates of activities and probability of their occurrence follow_______________?
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A. Poissons distribution curve

B. Beta distribution curve

C. none of the above

D. normal distribution curve

5343. The time with which direct cost does not reduce with the increase in time is known as_________________?
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A. normal time

B. standard time

C. crash time

D. optimistic time

5344. Economic saving of time results by crashing_________________?
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A. costliest non-critical activity

B. costliest critical activity

C. cheapest non-critical activity

D. cheapest critical activity
5345. The minimum width of the fire escape stairs shall be?
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A. 1.25 m

B. 2.0 m

C. 1.5 m

D. 1.00 m

5346. Select the incorrect statement?
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A. Earliest start of an activity is the early event time of the node it leaves.

B. Latest finish of an activity is the late event time of the node it enters.

C. none of the above

D. Latest start of an activity is its latest finish minus its duration.

5347. The independent float affects only_______________?
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A. the particular activity involved

B. preceding activities

C. succeeding activities

D. none of the above

5348. 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

5349. The constraints in case of resource smoothening operation would be_______________?
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A. resources

B. project duration time

C. both resources and project duration time

D. none of the above

5350. Crash project duration is obtained by summing the________________?
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A. normal durations for all the activities

B. crash durations for all activities

C. crash durations for all the activities along the critical path obtained by taking into account the crash duration for all the activities

D. crash durations for all the activities along the critical path obtained by taking into account the normal duration for all the activities

5351. For a given size of bucket, the ideal output of a dragline will be least in_______________?
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A. Moist loam

B. Wet sticky clay

C. Good common earth

D. Sand and gravel

5352. Earliest finish of an activity is always_______________?
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A. greater than or equal to earliest event time of the following node

B. greater than earliest event time of the following node

C. less than earliest event time of the following node

D. less than or equal to earliest event time of the following node
5353. Select the correct statement?
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A. The tail of an arrow represents the finish of an activity

B. Activity arrows in a CPM network are drawn to scale

C. none of the above

D. Arrow bead represents the start of an activity

5354. Select the incorrect statement?
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A. Start float and finish float are always equal

B. Total float can be either start float or finish float

C. Start float and finish float need not be equal

D. Start float and finish float are the differences between activity times and not event times

5355. In the network shown in Fig. (15 fig) the latest start time of an activity 4-5 is_________________?
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A. 7

B. 4

C. 8

D. 2

5356. Which of the following earth moving machines has the shortest cycle time?
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A. Hoe

B. Clam shell

C. Drag line

D. Dipper shovel
5357. 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___________________?
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A. 5 and 25/36

B. 4 and 5/6

C. 3.5 and 25/36

D. 3.5 and 5/6

5358. The direct cost of a project with respect to normal time is________________?
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A. zero

B. maximum

C. infinite

D. minimum
5359. 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. 11,56,250/-

B. Rs. 8,75,000/-

C. Rs. 8,43,750/-

D. Rs. 10,50,000/-

5360. Free float is mainly used to_________________?
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A. establish priorities

B. identify the activities which can be delayed without affecting the total float of either the preceding or succeeding activities

C. identify the activities, which can be delayed without affecting the total float of succeeding activity

D. identify the activities which can be delayed without affecting the total float of preceding activity