Irrigation MCQ Practice Questions (Civil Engineering) Set 3

Pick up the incorrect statement from the following:


Options are :

  • A bank in the cross-section of a canal is provided on the left
  • A bank in the cross-section of a canal is provided on the right
  • A 'dowla' in the cross-section of a canal is provided on the left
  • None of these

Answer :A bank in the cross-section of a canal is provided on the left

Pick up the correct statement from the following:


Options are :

  • Duty of canal water at the head of a channel and at the outlet of a distributary, differ considerably due to progressive losses of water
  • Duty of canal water is defined as the total area irrigated by the discharge averaging one unit during the base period of the duty
  • Duty of canal water is usually calculated at the head discharge of a channel
  • All the above
  • Duty of canal water at the outlet of a distributary, is generally known as outlet factor or outlet discharge factor

Answer :All the above

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 1

Water-shed line is abondened for aligning an irrigation canal if:


Options are :

  • All the above
  • Water shed forms a sharp loop
  • Canal has to take off from a river
  • Towns and villages are located on the water shed line

Answer :All the above

The measure to remove water logging of land, is:


Options are :

  • To reduce percolation from canals and water courses
  • None of these
  • To increase outflow from the ground water reservoir

Answer :To reduce percolation from canals and water courses To increase outflow from the ground water reservoir

For smooth entry of water in a canal, the angle between head regulator and water is generally kept:


Options are :

  • 110
  • 90
  • 120
  • 80

Answer :110

Hydraulics MCQ Practice Questions (Civil Engineering) Set 4

If q is the discharge per unit width of a channel and D1 D2 are the depths of water before and after hydraulic jump, the following relationship is true:


A.


B.


C.


D.


Options are :

  • B
  • D
  • A
  • C

Answer :C

A water-logged land is found suitable for cultivation due to:


Options are :

  • None of these
  • Ease of tillage for preparation of the field for optimum condition of germination
  • Regular supply of water to plants from the water table by capillary action
  • Absence of aeration of soil from root zone of the plant

Answer :None of these

For loss of head in a canal inverted syphon barrel, the factor in the Unwin formula

is a coefficient for loss of head due to:


Options are :

  • Gradient
  • Exit
  • Entry
  • Friction

Answer :Entry

Hydraulics MCQ Practice Questions (Civil Engineering) Set 8

The sinuosity of a meander is the ratio of:


Options are :

  • Curved length and the straight distance
  • Meander length and the width of meander
  • None of these
  • Meander length and half width of the river

Answer :Curved length and the straight distance

Attracting groynes are built:


Options are :

  • None of these
  • Inclined down stream
  • Perpendicular to the bank
  • Inclined up stream

Answer :Inclined down stream

Pick up the incorrect statement from the following:


Options are :

  • In furrow irrigation water is admitted between the rows of plants in the field
  • None of these
  • In check method of irrigation, the field is divided into smaller compartments and water is admitted to each in turn
  • In free flooding irrigation, water is admitted at one corner of a field and is allowed to spread over the entire area

Answer :None of these

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 1

The top of the capillary zone:


Options are :

  • None of these
  • Coincides the water table at every point
  • Lies below the water table at every point
  • Lies above the water table at every point

Answer :Lies above the water table at every point

Groynes are generally built:


Options are :

  • Inclined up stream up to 30
  • Perpendicular to the bank
  • All the above
  • Inclined down stream upto 30

Answer :Inclined up stream up to 30

F.S.L. of a canal at its head with respect to parent channel is kept:


Options are :

  • 15 cm lower
  • At the same level
  • 15 cm higher
  • None of these

Answer :15 cm lower

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 4

For a given discharge in a channel, Blench curves give the relationship between the loss of head (HL) and:


Options are :

  • Specific energy up-stream
  • Depth of water down-stream
  • Specific energy down-stream
  • Critical depth of water down-stream

Answer :Specific energy down-stream

Fundamental momentum equation for a hydraulic jump, is:


A.


B.


C.


D.


Options are :

  • B
  • D
  • A
  • C

Answer :B

The top soil of a water logged field becomes more alkaline and infertile if its pH value is:


Options are :

  • 11
  • 6
  • 8
  • 10
  • 9

Answer :11

Concrete Technology MCQ Practice Questions (Civil Eng) Set 1

When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. does not touch the underside of the supporting structure, the structure so provided, is called:


Options are :

  • Aqueduct
  • Syphon
  • Super passage
  • Syphon-aqueduct

Answer :Super passage

A river training work is generally required when the river is:


Options are :

  • Degrading
  • All the above
  • Aggrading
  • Meandering

Answer :Meandering

For designing the venturi head:


Options are :

  • Width of the throat should not be less than the width obtained from the formula B = Q / 1.2d3/2, where d is the difference in levels of F.S.L. and sill
  • All the above
  • Width of the throat should not be less than one-third of the bed width of main canal
  • Length of the throat should be 2.5 times the depth measured to F.S.L. in the main canal
  • Minimum throat width should not be less than 60 cm

Answer :All the above

Concrete Technology MCQ Practice Questions (Civil Eng) Set 8

The main function of a diversion head works of a canal from a river, is:


Options are :

  • All the above
  • To remove silt
  • To control floods
  • To raise water level
  • To store water

Answer :To raise water level

Pick up the incorrect statement from the following. Culturable commanded area is the gross area of an irrigation canal system less:


Options are :

  • Populated area
  • Forest area
  • Fallow land
  • Alkaline area

Answer :Fallow land

If L is total length of a canal in kilometres, P is total perimeter of its lining in metres and C is the cost of lining per square metre, the additional expenditure involved on lining, is:


A.

1000 PLC


B.


C.


D.


Options are :

  • B
  • C
  • A
  • D

Answer :A

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 5

If B and d are the bed width and depth of a channel in metres, the combined losses due to evaporation and seepage in cumecs per kilometre length of the channel, is:


A.


B.


C.


D.


Options are :

  • B
  • D
  • C
  • A

Answer :D

Retrogression of the bed level of a river downstream a weir, occurs due to:


Options are :

  • Increase of the bed level
  • Less percentage of silt
  • Soft soil strata
  • Heavy impact of water

Answer :Less percentage of silt

The length of a meander is the distance along the river between the tangent point of one curve to the tangent point of:


Options are :

  • None of these
  • Reverse curve
  • Reverse curve plus the width of the river
  • Next curve of the same order

Answer :Next curve of the same order

Theory of Structures MCQ Practice Questions (Civil Eng) Set 1

Irrigation canals are generally aligned along:


Options are :

  • Straight line
  • Contour line
  • Valley line
  • Ridge line

Answer :Ridge line

In a fall, the rectangular crest, may be used for discharge upto:


Options are :

  • 25 cumecs
  • 6 cumecs
  • 10 cumecs
  • 20 cumecs
  • 14 cumecs

Answer :14 cumecs

The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept:


Options are :

  • 0.20 m
  • 1.20 m
  • 3.20 m
  • 4.90 m
  • 2.20 m

Answer :1.20 m

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 5

The intensity of irrigation means:


Options are :

  • Percentage of gross commanded area to be irrigated annually
  • Total depth of water supplied by the number of waterings
  • Percentage of the mean of culturable commanded area and the gross commanded area to be irrigated annually
  • Percentage of culturable commanded area to be irrigated annually

Answer :Percentage of culturable commanded area to be irrigated annually

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