civil engineering MCQs – Page 79

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 Review each marked answer and report any item that may be outdated or unclear.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
1561. Which of the following is a non-recording raingauge ?
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A. Simons raingauge

B. Stevens weighing type raingauge

C. tipping bucket type raingauge

D. floating type raingauge

1562. A solid cylinder of mass M and radius R rolls down an inclined plane without slipping. The acceleration of center of mass of rolling cylinder is________________?
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A. (2/3) g cos 9

B. (2/3) g sin 0

C. (1/3) g sinB

D. g sin 9

1563. As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at_____________?
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A. lower level

B. higher level

C. same level

D. any of the above depending on the design

1564. The shape of recession limb of a hydrograph depends upon________________?
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A. basin characteristics only

B. storm characteristics only

C. both (A) and (B)

D. none of the above

1565. Generally the weir is aligned at right angles to the direction of the main river current because______________?
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A. all of the above

B. it gives better discharging capacity

C. it ensures less length of the weir

D. it is economical

1566. Coefficient of friction depends on__________________?
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A. nature of surfaces only

B. area of contact only

C. both (A) and (B)

D. none of the above

1567. To determine the discharge at a section in a stream from its rating curve, the required data are_______________?
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A. current meter readings at the section </strong>

B. correct answer is?

C. slope of water surface at the section

D. stage at the section

1568. If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, then___________________?
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A. correct answer is?

B. the body will not be in equilibrium</strong>

C. a force is required to move the body upwards

D. a force is required to move the body downward

1569. The kor depth for rice is 190 mm and kor period is 14 days. The outlet factor for this will be_________________?
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A. 972 hectares/m3/sec

B. 1172 hectares/m3/sec

C. 837 hectares/m3/sec

D. 637 hectares/m3/sec
1570. If it rains between 2 P.M. and 3 P.M. and the entire basin area just starts contributing water at 3 P.M. to the outlet, then time of concentration will be_____________________?
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A. 20 minutes

B. 15 minutes

C. 30 minutes

D. 60 minutes
1571. Which of the following types of falls use parabolic glacis for energy dissipation ?
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A. inglis fall

B. vertical drop fall

C. glacis fall

D. Montague type fall
1572. Tortuosity of a meandering river is the ratio of__________________?
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A. meander belt to meander length

B. meander length to meander belt

C. direct axial length of the river reach to curved length along the channel

D. curved length along the channel to the direct axial length of the river reach
1573. Ordinary rails are made of_______________?
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A. cast iron

B. wrought iron

C. mild steel

D. high carbon steel
1574. Consider the following statements about concrete sleepers_________________?
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A. They maintain the gauge quite satisfactorily.Of these statements </strong>

B. They render transportation easy.

C. They have good scrap value.

D. They improve the track modulus.
1575. A river bend characterized by silting_______________?
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A. scouring on concave side and silting on convex side

B. scouring on convex side and on concave side

C. silting on convex side

D. scouring on concave side

1576. A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan1 x, where x is______________________?
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A. 4-Mar

B. 5-Apr

C. 3-May

D. 3/5
1577. The limiting value of cant excess for Broad Gauge is________________?
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A. 55 mm

B. 75 mm

C. 65 mm

D. l00 mm

1578. Flat mild steel bearing plates are used_________________?
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A. with wooden sleepers at locations where creep is likely to be developed

B. for points and crossings in the lead portion

C. on all the above

D. on all joints and curves

1579. Which of the following is a scalar quantity ?
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A. momentum

B. torque

C. energy

D. impulse

1580. For an annual flood series arranged in descending order of magnitude, the return for a magnitude listed at position period m in a total data N is________________?
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A. m/(N+l)

B. (N+l)/m

C. N/(m+l)

D. m/N