civil engineering MCQs – Page 85

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 Review each marked answer and report any item that may be outdated or unclear.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
1681. Which of the following statements regarding ballast materials are correct ?
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A. Brick ballast has poor drainage characteristics.

B. Gravel ballast gives better performance on soft formation.

C. Coal ash is not used as ballast with steel or cast iron sleepers.

D. Sand ballast causes excessive wear on top of rail
1682. The flow-mass curve is graphical representation of__________________?
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A. discharge and time in chronological order

B. discharge and percentage probability of flow being equaled or exceeded

C. cumulative discharge and time

D. cumulative discharge, volume and time in chronological order
1683. Number of dog spikes normally used per rail seat on curved track is__________________?
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A. one on either side

B. one outside and two inside

C. two outside and one inside

D. two outside and two inside

1684. The load on each axle of a locomotive is 22 tonnes. If the coefficient of friction is 0.2, then the hauling capacity due to 3 pairs of driving wheels will be________________?
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A. 19.81

B. 13.21

C. 26.41

D. 6.61

1685. The major resisting force in a gravity dam is___________________?
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A. water pressure

B. wave pressure

C. self-weight of dam

D. uplift pressure

1686. The main cause of meandering is________________?
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A. none of the above

B. degradation

C. presence of an excessive bed slope in the river

D. the extra turbulence generated by the excess of river sediment during floods
1687. With the increase in the quantity of water supplied, the yield of most crops_________________?
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A. increases continuously

B. increases upto a certain limit and then decreases

C. increases upto a certain limit and then becomes constant

D. decreases continuously

1688. Select the correct statement?
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A. BOD does nof depend on time

B. 5 day BOD is greater than 4 day BOD keeping other conditions same

C. 5 day BOD is less than 4 day BOD keeping other conditions same

D. 5 day BOD is the ultimate BOD

1689. 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. 8,75,000/-

B. Rs. 10,50,000/-

C. Rs. 8,43,750/-

D. Rs. 11,56,250/-

1690. Total float for any activity is defined as the difference between________________?
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A. its latest finish time and earliest start time for its successor activity

B. its earliest finish time and earliest start time for its successor activity

C. its latest start time and earliest start time

D. its latest start time and earliest finish time

1691. If D is the diameter of tunnel in meters, then the thickness of lining in mm, as per the empirical formula is given by_________________?
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A. 124 D

B. 82 D

C. 42 D

D. 104 D

1692. As compared to a single free face, if a charge of explosive is placed equidistant from two faces, then the yield___________________?
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A. increases by 2.25 times

B. increases by 3.5 times

C. remains same

D. decreases

1693. The width of the analogous column in the method of column analogy is _________________?
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A. 1/4 EI

B. 1/2 EI

C. 1/EI

D. 2/EI

1694. Removal of props under______________?
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A. beams spanning upto 6 m is 14 days

B. slabs spanning upto 4.5 m is 7 days

C. slabs spanning upto 4.5 m is 14 days

D. All the above
1695. Select the incorrect statement ?
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A. Lift irrigation increases water logging

B. Extensive irrigation should be adopted in areas susceptible to water logging

C. all of the above

D. Intensive irrigation should be avoided in areas susceptible to water logging

1696. The needle beam method of tunneling______________?
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A. is suitable for soils in which roof can stand for few minutes without support

B. i) is suitable for concrete lining

C. ) is suitable for brick lining

D. ) requires large number of trench jacks</strong>

E. ect the answer?

1697. In resources levelling________________?
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A. cost of project is controlled

B. total duration of project is increased

C. uniform demand of resources is achieved

D. total duration of project is reduced

1698. 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__________________?
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A. 97.7% and 84.1%

B. 97.7 % and 15.9%

C. 15.9% and 97.7%

D. 2.3% and 84.1%
1699. Updating may result in_________________?
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A. all of the above

B. decrease of project completion time

C. change of critical path

D. increase of project completion time

1700. Which of the following factors govern the choice of the gauge ?
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A. volume and nature of traffic

B. correct answer is ?

C. speed of train

D. ) physical features of the country</strong>