civil engineering Mcqs
1551. The drainage water intercepting the canal can be disposed of by passing the canal below the drainage in___________________?
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A. super passage and canal syphon

B. level crossing

C. aqueduct and super passage

D. aqueduct and syphon aqueduct

1552. Joule is the unit of__________________?
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A. work

B. impulse

C. momentum

D. power

1553. A stone is thrown vertically upwards with a vertical velocity of 49 m/sec. It returns to the ground in________________?
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A. 8 sec

B. 20 sec

C. 10 sec

D. 5 sec

1554. If the given forces P,, P2, P3 and P4 are such that the force polygon does not close, then the system will___________________?
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A. be in equilibrium

B. always reduce to a resultant force

C. always reduce to a couple

D. both (A) and (C)

1555. Heel divergence is__________________?
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A. always less than flangeway clearance

B. always greater than flangeway clearance

C. equal to flangeway clearance

D. sometimes greater than flangeway clearance

1556. Maximum value of throw of switch for Broad Gauge track is__________________?
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A. 95 mm

B. 89 mm

C. 100 mm

D. 115 mm
1557. The unit hydrograph due to a storm may be obtained by dividing the ordinates of the direct runoff hydrograph by_______________?
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A. period of storm

B. none of the above

C. direct runoff volume

D. total rainfall

1558. The maximum degree of curvature for Meter Gauge is limited to_________________?
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A. 30

B. 40

C. 10

D. 16
1559. Which of the following can be used as a meter fall ?
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A. all of the above

B. vertical drop fall

C. unflumed glacis fall

D. flumed glacis fall

1560. The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are________________?
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A. correct answer is

B. Self weight

C. Water pressure

D. Uplift

E. Pressure due to earthquake</strong>

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

1581. The uplift pressure on the face of a drainage gallery in a dam is taken as_________________?
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A. none of the above

B. hydrostatic pressure at toe

C. two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel

D. average of hydrostatic pressure at toe and heel

1582. A 70% index of wetness means_______________?
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A. none of the above

B. rain deficiency of 70%

C. rain deficiency of 30%

D. rain excess of 30%

1583. The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is________________?
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A. equal to 1

B. greater than 1

C. equal to zero

D. less than 1

1584. The time period of a simple pendulum depends on__________________?
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A. mass of suspended particle

B. correct answer is

C. length of the pendulum

D. acceleration due to gravity </strong>

1585. If y is force and x is velocity, then dimensions of =r are dx2__________________?
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A. M^T

B. M2LT3

C. ML-T1

D. ML-T0
1586. The diagram showing the point of application and line of action of forces in their plane is called____________________?
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A. funicular diagram

B. space diagram

C. force diagram

D. vector diagram

1587. For the upstream face of an earthen dam, the most adverse condition for stability of slope is_______________?
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A. sudden drawdown

B. during construction

C. sloughing of slope

D. steady seepage

1588. The stream which does not have any base flow contribution is called________________?
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A. ephemeral stream

B. intermittent stream

C. none of the above

D. perennial stream

1589. A treadle bar is used for_____________________?
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A. setting marshalling yard signals

B. interlocking points and signal

C. track maintenance

D. setting points and crossings

1590. The ratio of the average load to the installed capacity of the plant whose reserve capacity is zero will be equal to__________________?
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A. load factor

B. plant factor

C. utilisation factor

D. both (A) and (B)

1591. The area between the isohyets 45 cm and 55 cm is 100 square km and between 55 cm and 65 cm is 150 square km. The average depth of annua! precipitation over the above basin of 250 square km will be__________________?
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A. 56 cm

B. 60 cm

C. 50 cm

D. 55 cm

1592. A repelling groyne is aligned________________?
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A. pointing upstream

B. perpendicular to bank

C. pointing downstream

D. parallel to bank

1593. For a proportional outlet, the flexibility is______________?
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A. between zero and 1

B. 1

C. greater than 1

D. zero

1594. Variability of rainfall is____________?
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A. largest in regions of high rainfall

B. correct answer is?

C. largest in regions of scanty rainfall</strong>

D. largest in coastal areas

1595. The unit hydrograph of a specified duration can be used to evaluate the hydrograph of storms of_________________?
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A. same duration only

B. same and shorter duration

C. same and longer duration

D. any duration
1596. A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?
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A. pyramid

B. prism

C. both equally stable

D. none of the above

1597. Rate of evaporation from a water surface increases if_________________?
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A. velocity of wind is decreased

B. concentration of soluble solids in water is decreased</strong>

C. difference of vapour pressure between water and air is increased

D. correct answer is?

1598. For supplying water to rabi crop, kharif crop and sugarcane, the channel is designed for a capacity equal to the greater of the water requirement of_______________?
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A. rabi and sugarcane or kharif and sugarcane

B. rabi or kharif or sugarcane

C. rabi or kharif

D. rabi and kharif or sugarcane

1599. For the purpose of track maintenance, the number of turn out equivalent to one track km are__________________?
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A. 2

B. 10

C. 5

D. 1

1600. The outlet discharge factor is the duty at the head of_________________?
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A. main canal

B. distributory

C. branch canal

D. watercourse