Irrigation MCQ Practice Questions (Civil Engineering) Set 2

Solution of Laplacian equation in three dimensions

of water in a syphon, is done by:


Options are :

  • Analytical method
  • Unwin's method
  • Khosla's method
  • Method of relaxation

Answer :Method of relaxation

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

If the optimum depth of kor watering for a crop is 15.12 cm, the outlet factor for the crop for four week period in hectares per cumec, is:


Options are :

  • 2000
  • 1400
  • 1000
  • 1600
  • 1200

Answer :1600

A minimum of 90 cm free board is provided if the discharge in the canal is between:


Options are :

  • Over 60 cumecs
  • 30 to 33 cumecs
  • Over 100 cumecs
  • 30 to 60 cumecs

Answer :Over 60 cumecs

A fall in a canal bed is generally provided, if:


Options are :

  • None of these
  • Ground slope is practically the same as the designed bed slope
  • Ground slope exceeds the designed bed slope
  • Designed bed slope exceeds the ground slope

Answer :Ground slope exceeds the designed bed slope

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 4

In gravity canals, F.S.L. is:


Options are :

  • Only a few cm above the ground level
  • Always below the ground level
  • Always at the ground level
  • Generally 4 to 5 metres above the ground level

Answer :Only a few cm above the ground level

A hydraulic structure is designed to withstand:


Options are :

  • All the above
  • Hydraulic jump
  • Seepage forces
  • Hydraulic pressure

Answer :All the above

The consumptive use of water for a crop:


Options are :

  • Is measured as the volume of water per unit area
  • May be supplied partly by precipitation and partly by irrigation
  • Is measured as depth of water on irrigated area
  • All the above.

Answer :All the above.

Hydraulics MCQ Practice Questions (Civil Engineering) Set 5

The main cause of silting up a channel:


Options are :

  • Non-regime section
  • Defective outlets
  • Inadequate slope
  • Defective head regulator
  • All the above

Answer :All the above

Bed bars in a canal are provided:


Options are :

  • To control the silting
  • All the above
  • To watch the general behaviour of canal
  • To raise the supply level
  • To measure the discharge

Answer :To watch the general behaviour of canal

In a barrage, the crest level is kept:


Options are :

  • High with large gates
  • High with no gates
  • Low with no gates
  • Low with large gates

Answer :Low with large gates

Hydraulics MCQ Practice Questions (Civil Engineering) Set 4

If straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle ? with horizontal, the area of its cross-section, is:


Options are :

  • R(? + cot ?)
  • R^(2)(? + cot ?)
  • R(? + tan ?)
  • R^(2)(? + tan ?)
  • R(? + tan ?)

Answer :R^(2)(? + cot ?)

If V0 is the critical velocity of a channel, its silt transporting power, according to Kennedy, is proportional to:


A.


B.


C.


D.


E.


Options are :

  • A
  • D
  • E
  • B
  • C

Answer :C

Meandering of a river generally occurs, in:


Options are :

  • Boulder stage
  • Rocky stage
  • Delta stage
  • Trough stage

Answer :Trough stage

Concrete Technology MCQ Practice Questions (Civil Eng) Set 3

If d1 is the depth of cutting, d2 is the height of the bank from bed level r2 : 1 and r1 : 1 are the slopes in filling and cutting respectively, the horizontal distance n between the bed and bank, is:


Options are :

  • x = d1 / r1
  • x = r2 d2
  • x = r1 d1
  • x = d2 / r2

Answer :x = r2 d2

An outlet which maintains a constant discharge irrespective of fluctuation in the water levels of the supplying channel or water course, is known as:


Options are :

  • Non-modular outlet
  • Semi-modular outlet
  • Flexible modular outlet
  • Right modular outlet

Answer :Right modular outlet

The most suitable location of a canal head work, is:


Options are :

  • Trough stage of the river
  • Boulders stage of the river
  • Rock stage of the river
  • Delta stage of the river

Answer :Trough stage of the river

Theory of Structures MCQ Practice Questions (Civil Eng) Set 3

Lacy's regime condition is obtained if:


Options are :

  • Channel flows in unlimited, incoherent alluvium of the same character as that transported material
  • Silt grade in the channel is variable
  • Silt charge in the channel is variable
  • Discharge in the channel is variable

Answer :Channel flows in unlimited, incoherent alluvium of the same character as that transported material

For a standing crop, the consumptive use of water is equal to the depth of water:


Options are :

  • Evaporated by the crop
  • Transpired by the crop
  • Used by the crop in transpiration, evaporation and also the quantity of water evaporated from adjacent soil
  • Transpired and evaporated by the crop

Answer :Used by the crop in transpiration, evaporation and also the quantity of water evaporated from adjacent soil

Bligh's theory of seepage assumes:


Options are :

  • Equal weightage to the horizontal and vertical creep
  • Less weightage to horizontal creep than vertical creep
  • More weightage to horizontal creep than vertical creep
  • Loss of head follows the sine curve

Answer :Equal weightage to the horizontal and vertical creep

Irrigation MCQ Practice Questions (Civil Engineering) Set 2

Side slopes generally kept for canals in loam soil, are:


A.

1 : 1 in cutting and

: 1 in filling


B.

: 1 in cutting and 2 : 1 in filling


C.

None of these


Options are :

  • B
  • Both A and B
  • C
  • A

Answer :Both A and B

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

Pick up the incorrect statement from the following:


Options are :

  • Once the width of the flume becomes 2/3rd of the width of the distributary, the splayed walls are increased to 1 in 3 to get full bed width
  • Side walls of a venturi head flume are splayed out from the end of the throat at 1 : 10 for a length of 4.5 m
  • None of these
  • Length of side walls should be such that the width of the flume is made equal to 2/3rd the bed width of the distributary

Answer :None of these

The saturation line is the line up to which banks get saturated after the canal runs for some time. The saturation gradient in ordinary loam soil, is generally:


Options are :

  • 2 : 1
  • 6 : 1
  • 4 : 1
  • 3 : 1
  • 5 : 1

Answer :4 : 1

Pick up the correct statement from the following:


Options are :

  • If the setting of an outlet is higher than that required for proportionality, the outlet is hyper-proportional
  • If the setting of an outlet is lower than that required for proportionality, the outlet is sub-proportional
  • If the flexibility is zero, it is a rigid module
  • If the flexibility is more than one, the outlet is hyper-proportional
  • All the above

Answer :All the above

Concrete Technology MCQ Practice Questions (Civil Eng) Set 5

For the stability of a structure against seepage pressure according to Khosla's creep theory, the critical gradient is:


Options are :

  • 1.00
  • 0.25
  • 0.50
  • Zero
  • 0.75

Answer :1.00

The difference in level between the top of a bank and supply level in a canal, is called:


Options are :

  • None of these
  • Berm
  • Height of bank
  • Free board

Answer :Free board

Pick up the correct statement from the following:


Options are :

  • In a level crossing a regulator is provided across the drainage at its down-stream
  • In a level crossing, a cross regulator is provided on the canal below the crossing
  • All the above
  • In a level crossing, a crest with its top at the canal F.S.L. is provided across the drainage at its up-stream junction with canal

Answer :All the above

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 5

If the straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle ? with horizontal, the perimeter of the canal is:


Options are :

  • R(? + tan ?)
  • None of these
  • 2R(? + cos ?)
  • 2R(? + tan ?)
  • R(? + cos ?)

Answer :2R(? + cos ?)

For the conditions enumerated to provide a crossing at C1 You will probably provide:


Options are :

  • A syphon aqueduct
  • A super-passage
  • None of these
  • An aqueduct

Answer :A super-passage

According to G.W. Pickles the effect of confining the flood water of a river between levee, is to increase:


Options are :

  • Rate of flood wave
  • Water surface elevation during floods
  • Maximum discharge
  • Surface slope of streams above the leveed portion
  • Velocity and scouring action

Answer :Surface slope of streams above the leveed portion

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

The discharge over a trapezoidal crest of a Sarda fall with free over fall conditions, is:


Options are :

  • 0.45 ?2g . LH^(3/2) (H/B)^(1/3)
  • 0.45 ?2g . LH^(3/2) (H/B)^(1/6)
  • 0.45 ?2g . LH^(2/3) (H/B)^(2/3)
  • 0.45 ?2g . LH^(1/6) (H/B)^(3/2)

Answer :0.45 ?2g . LH^(3/2) (H/B)^(1/6)

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