Irrigation MCQ Practice Questions (Civil Engineering) Set 1

A hydraulic jump is generally formed when a stream moving with:


Options are :

  • A hyper-critical velocity meets a stream moving with a hyper-critical velocity
  • A hyper-critical velocity meets a stream moving with a sub-critical velocity
  • A hyper-critical velocity meets a stream moving with a critical velocity
  • A sub-critical velocity meets a stream moving with a hyper-critical velocity

Answer :A hyper-critical velocity meets a stream moving with a sub-critical velocity

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 8

The down stream expansion head of a guide bank is extended to subtend an angle at the centre, equal to:


Options are :

  • 60
  • 90
  • 30
  • 45

Answer :45

The useful moisture of soil, is equal to its:


Options are :

  • Saturation capacity
  • Difference between filed capacity and permanent wilting point within the root zone of plants
  • Moisture content at permanent wilting point
  • Field capacity

Answer :Difference between filed capacity and permanent wilting point within the root zone of plants

Canals taken off from ice-fed perennial rivers, are known:


Options are :

  • Ridge canals
  • Permanent canals
  • Ice canals
  • Perennial canals
  • Inundation canals

Answer :Perennial canals

Hydraulics MCQ Practice Questions (Civil Engineering) Set 9

The Lacey's regime velocity is proportional to:


Options are :

  • Q^(3/4) S^(1/3)
  • R^(3/4) S^(1/3)
  • R^(2/3) S^(1/2)
  • R^(1/2) S^(3/4)

Answer :R^(3/4) S^(1/3)

The velocity of drainage water in the barrels of a syphon-aqueduct, is normally limited to:


Options are :

  • 2 to 3 m per second
  • 1 to 2 m per second
  • 3 to 4 m per second
  • 4 to 5 m per second

Answer :2 to 3 m per second

If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is:


Options are :

  • None of these
  • Q = 1.71 BD^(3/2)
  • Q = 1/71 BD^(2/3)
  • Q = 1.71 BD^(1/2)
  • Q = 1.71 BD

Answer :Q = 1.71 BD^(3/2)

Irrigation MCQ Practice Questions (Civil Engineering) Set 1

According to Bligh's creep theory, percolating water flows along:


Options are :

  • Straight path under the foundation of the dam
  • The outline of the base of the foundation of the dam
  • None of these
  • Circular path under the foundation of the dam

Answer :The outline of the base of the foundation of the dam

A deficit of sediments in flowing water may cause a river:


Options are :

  • Degrading type
  • Meandering type
  • Sub-critical type
  • Aggrading type

Answer :Degrading type

Trial procedure of canal design by Kennedy's theory is based upon the equation:


A.

Q = A . Y


B.


C.


D.

All the above


Options are :

  • B
  • C
  • A
  • D

Answer :D

Concrete Technology MCQ Practice Questions (Civil Eng) Set 6

In Plains, optimum depth of kor watering for wheat, is:


Options are :

  • 12.0 cm
  • 19.0 cm
  • 17.5 cm
  • 23.0 cm
  • 13.5 cm

Answer :13.5 cm

If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by:


Options are :

  • B = 0.33 ?H + d
  • B = 0.22 ?H + d
  • B = 0.44 ?H + d
  • B = 0.55 ?H + d

Answer :B = 0.55 ?H + d

The length and width of a meander and also the width of the river, vary roughly as:


Options are :

  • Square root of the discharge
  • Cube of the discharge
  • Square of the discharge
  • Discharge

Answer :Square root of the discharge

Irrigation MCQ Practice Questions (Civil Engineering) Set 5

If the irrigation efficiency is 80%, conveyance losses are 20% and the actual depth of watering is 16 cm, the depth of water required at the canal outlet, is:


Options are :

  • 15 cm
  • 10 cm
  • 25 cm
  • 20 cm
  • 30 cm

Answer :25 cm

The sensitivity of a rigid module, is:


Options are :

  • 1.00
  • 1.50
  • Zero
  • 2.00
  • 0.50

Answer :Zero

In Montague type fall:


Options are :

  • No glacis is provided
  • A parabolic glacis is provided
  • A straight glacis is provided
  • A circular glacis is provided

Answer :A parabolic glacis is provided

Theory of Structures MCQ Practice Questions (Civil Eng) Set 6

For a unique design of a channel by Kennedy's theory:


Options are :

  • Its breadth must only be known
  • All the above
  • Its depth must only be known
  • Its breadth and depth ratio must only be known

Answer :Its breadth and depth ratio must only be known

Canals constructed for draining off water from water logged areas, are known:


Options are :

  • Drains
  • Inundation canals
  • Contour canals
  • Ridge canals
  • Valley canals

Answer :Drains

The field capacity of a soil is 25%, its permanent wilting point is 15% and specific dry unity weight is 1.5

If the depth of root zone of a crop, is 80 cm, the storage capacity of the soil, is:


Options are :

  • 12 cm
  • 16 cm
  • 14 cm
  • 8 cm
  • 10 cm

Answer :12 cm

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 3

Pick up the correct statement from the following:


Options are :

  • The full supply level of a canal should be above ground level
  • In case the ground slope is less than the required bed slope, the silt factor must be reduced by permitting the entry of coarse silt
  • According to Lacey, regime conditions require a particular slope for a given discharge and silt factor
  • All the above

Answer :All the above

The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called:


Options are :

  • Aqueduct
  • Syphon aqueduct
  • Super passage
  • Super-aqueduct
  • Syphon

Answer :Syphon aqueduct

The state of the soil when plants fail to extract sufficient water for their requirements, is:


Options are :

  • None of these
  • Permanent wilting point
  • Maximum saturated point
  • Ultimate utilisation point

Answer :Permanent wilting point

Hydraulics MCQ Practice Questions (Civil Engineering) Set 7

Useful soil moisture for plant growth, is:


Options are :

  • Gravity water
  • All the above
  • Capillary water
  • Chemical water
  • Hygroscopic water

Answer :Capillary water

The width of a meander belt is the transverse distance between:


Options are :

  • Apex point of one curve and apex point of the reserve curve
  • None of these
  • Apex point and the crossing
  • Two banks of meandering river

Answer :Apex point of one curve and apex point of the reserve curve

If ? is the depth of water in metres, B is the number of days of base period and D is the duty in hactare/cumec, the relationship which holds good, is:


A.


B.


C.


D.


E.

None of these


Options are :

  • E
  • B
  • A
  • D
  • C

Answer :D

Construction Management MCQ Practice Questions (Civil Eng) Set 1

Regime conditions in a channel may occur if:


Options are :

  • Silt grade and silt charge are constant
  • All the above
  • Discharge is constant
  • Channel flows uniformly in incoherent alluvium as that transported in suspension

Answer :All the above

Pick up the correct statement from the following:


Options are :

  • Capillary moisture held in the soil pores against gravity by surface tension, is utilised by plants
  • Gravity water is harmful to crops
  • All the above
  • Hygroscopic water remains attached to soil molecules by chemical bond

Answer :Capillary moisture held in the soil pores against gravity by surface tension, is utilised by plants

The optimum depth of kor watering for a rice crop, is:


Options are :

  • 19.0 cm
  • 12.0 cm
  • 17.5 cm
  • 13.5 cm
  • 23.0 cm

Answer :19.0 cm

Hydraulics MCQ Practice Questions (Civil Engineering) Set 10

According to Khosla, the exist gradient of surface flow:


Options are :

  • Depends upon the b/d ratio
  • None of these
  • Is independent of the b/d ratio
  • Is independent of the depths of d/s cut off walls

Answer :Depends upon the b/d ratio

The scour depth D of a river during flood, may be calculated from the Lacey's equation:


A.


B.


C.


D.


Options are :

  • C
  • A
  • D
  • B

Answer :C

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