Construction Planning And Management MCQ Questions & Answers

11

Select the correct statement.

A) Activity arrows in a CPM network are drawn to scale B) The tail of an arrow represents the finish of an activity C) Arrow bead represents the start of an activity D) None of the above

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Answer & Solution

Answer: Option D

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12

Select the incorrect statement.

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) Latest start of an activity is its latest finish minus its duration D) None of the above

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Answer & Solution

Answer: Option D

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13

Select the incorrect statement.

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

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Answer & Solution

Answer: Option C

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14

Select the incorrect statement.

A) A critical path always begins at the very first event. B) A critical path always terminates at the last event. C) Critical activities control the project duration. D) Critical activity is the one for which free float is zero.

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Answer & Solution

Answer: Option D

Solution:

Critical activity is not necessarily the one for which free float is zero.

Free float is defined as the amount of time an activity can be delayed without delaying the early start of its successor activity. It is calculated as:

Free Float = Early Start (Successor) - Early Finish (Current Activity)

Critical activity is the activity that lies on the critical path. For these activities, the total float is zero, meaning there is no room for any delay in these activities without impacting the overall project completion time.

Total float is defined as the amount of time an activity can be delayed without delaying the overall project. It is calculated as:

Total Float = Latest Start - Earliest Start or Latest Finish - Earliest Finish

Hence, while the free float of an activity may sometimes be zero, critical activities are identified based on total float, not free float.

Thus, the statement in Option D is incorrect.

15

Wheeled tractors are replacing crawler tractors because
1. Wheeled tractors travel faster.
2. Crawler tractors are more expensive.
3. Track parts of a crawler wear out quickly.
4. Crawler tractors have stick control.
of following statements

A) 1, 3 and 4 are correct B) 2, 3 and 4 are correct C) 1, 2 and 3 are correct D) 1, 2 and 4 are correct

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Answer & Solution

Answer: Option C

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16

The maximum rimpull in the first gear of a tractor while towing a load is 6300 kg. The tractor weighs 12.5 tonnes and is operating along a 2 percent upgrade and the rolling resistance is 45 kg/tonne. Pull available for towing the load is

A) 3425 kg B) 5515 kg C) 4350 kg D) 2975 kg

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Answer & Solution

Answer: Option B

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17

The basic action involved in sheep foot rolling is

A) Kneading B) Pressing C) Tamping D) Vibration

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Answer & Solution

Answer: Option A

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18

If the expected time of completion of a project is 60 weeks with a standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks respectively will be

A) 2.3% and 84.1% B) 97.7% and 84.1% C) 97.7 % and 15.9% D) 15.9% and 97.7%

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Answer & Solution

Answer: Option A

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19

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

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Answer & Solution

Answer: Option B

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20

PERT is

A) An analytic in concept B) Limited of event oriented diagrams C) Used for research and development projects D) All the above

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Answer & Solution

Answer: Option D

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Construction Planning And Management MCQ Questions & Answers | Civil Engineering