civil engineering MCQs – Page 83

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 Review each marked answer and report any item that may be outdated or unclear.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
1641. The maximum average depth due to one day storm over an area of 100 km2 is 100 mm. Depth-Area-Duration (DAD. curves indicate that for the same area of 100 km2 the maximum average depth for a 3 hour storm will be__________________?
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A. more than 100 mm

B. none of the above

C. 100 mm

D. less than 100 mm

1642. A multipurpose reservoir is the one which is_________________?
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A. designed for one purpose but serves more than one purpose

B. planned and constructed to serve various purposes

C. both (A. and (B.

D. none of the above

1643. If the resultant of two forces has the same magnitude as either of the force, then the angle between the two forces is____________________?
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A. 45

B. 120

C. 60

D. 30

1644. The number of funicular polygons which can be drawn to pass through two specified points in the space diagram are__________________?
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A. 2

B. infinity

C. zero

D. 1

1645. The net speed under which the turbine reaches its peak efficiency is called_________________?
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A. rated speed

B. operating speed

C. gross speed

D. design speed
1646. If the angular distance, 0 = 2t3 3t2, the angular acceleration at t = 1 sec. is__________________?
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A. 4 rad/sec2

B. 1 rad/sec2

C. 12 rad/sec2

D. 6 rad/sec2
1647. The type of spike used for fixing chairs of bull headed rails to wooden sleepers is_________________?
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A. elastic spike

B. dog spike

C. round spike

D. rail screw

1648. When a body slides down an inclined surface, the acceleration of the body is given by__________________?
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A. g cos 6

B. gsinG

C. g

D. g tan 6

1649. For a Broad Gauge route with M+7 sleeper density, number of sleepers per rail length is________________?
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A. 19

B. 20

C. 21

D. 18

1650. A force P of 50 N and another force Q of unknown magnitude act at 90 to each other. They are balanced by a force of 130 N. The magnitude of Q is__________________?
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A. 60 N

B. 100 N

C. 80 N

D. 120 N
1651. For a catchment area of 120 km2, the equilibrium discharge in m3/hour of an S-curve obtained by the summation of 6 hour unit hydro graph is_______________?
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A. 0.6 x 106

B. 7.2 xlO6

C. 2.4 xlO6

D. 0.2 x 106
1652. The sensitivity of a rigid module is_______________?
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A. zero

B. infinity

C. between zero and one

D. 1

1653. The angular speed of a car taking a circular turn of radius 100 m at 36 km/hr will be___________________?
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A. 100 rad/sec

B. 1 rad/sec

C. 10 rad/sec

D. 0.1 rad/sec
1654. A shell of mass 100 kg travelling with a velocity of 10 m/sec breaks into two equal pieces during an explosion which provides an extra kinetic energy of 20000 Joules. If the pieces continue to move in the same direction as before, then the speed of the faster one must be____________________?
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A. 20 m/sec

B. 50 m/sec

C. 30 m/sec

D. 40 m/sec

1655. The ratio of the quantity of water stored in the root zone of the crops to the quantity of water actually delivered in the field is known as__________________?
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A. none of the above

B. water application efficiency

C. water conveyance efficiency

D. water use efficiency

1656. Under the same conditions, which of the following shapes of water surface will give the highest rate of evaporation ?
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A. convex water surface

B. flat water surface

C. concave water surface

D. independent of shape of water surface

1657. The angle of projection at which the horizontal range and maximum height of a projectile are equal to_____________________?
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A. 45

B. 36

C. 76

D. 56

1658. On a single rail track, goods trains loaded with heavy iron material run starting from A to B and then empty wagons run from B to A. The amount of creep in the rails__________________?
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A. will be more in the direction of A to B

B. will be maximum at the middle of A and B

C. cannot be determined from the given data

D. will be more in the direction of B to A

1659. A divide wall is provided_______________?
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A. parallel to the axis of weir and up-stream of it

B. parallel to the axis of weir and down-stream of it

C. at an inclination to the axis of weir

D. at right angle to the axis of weir
1660. Seepage through embankments in an earthen dam is controlled by_______________?
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A. drainage filters

B. drain trenches

C. provision of downstream berms

D. relief wells