Irrigation MCQ Practice Questions (Civil Engineering) Set 4

Pick up the correct statement from the following:


A.

Approach of the water line in a flumed channel section should not be steeper than


B.

Departure of the water line from a flumed channel section should not be steeper than 30


C.

Approach of the water line should not be steeper than 30 and departure line not steeper than

in a flumed channel section


D.

Approach and departure of the water line in a flumed channel section, should not be steeper than


Options are :

  • A
  • C
  • D
  • B

Answer :C

When a canal is carried over a natural drainage, the structure provided, is known as:


Options are :

  • Syphon-aqueduct
  • Syphon
  • Super passage
  • Aqueduct

Answer :Aqueduct

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

In a canal syphon, the flow is:


Options are :

  • With critical velocity
  • Under negative pressure
  • Pipe flow
  • Under atmospheric pressure

Answer :Pipe flow

Borrow pits should preferably be located in:


Options are :

  • Central half width of the section of the canal
  • Field on the right side of the canal
  • Fields on both sides of the canal
  • Field on the left side of the canal

Answer :Central half width of the section of the canal

For the design of major hydraulic structures on the canals, the method generally preferred to, is based on:


Options are :

  • Khosla's method of independent variables
  • Electrical analogy method
  • Bligh's theory
  • The relaxation method

Answer :Khosla's method of independent variables

Theory of Structures MCQ Practice Questions (Civil Eng) Set 4

The depth of rice root zone, is:


Options are :

  • 60 cm
  • 80 cm
  • 70 cm
  • 50 cm
  • 90 cm

Answer :90 cm

When a canal and a drainage approach each other at the same level, the structure so provided, is:


Options are :

  • An aqueduct
  • A level crossing
  • Inlet and outlet
  • A syphon

Answer :A level crossing

The crest level of a canal diversion head work, depends upon:


Options are :

  • F.S.L. of the canal
  • All the above
  • Discharge perimeters
  • Pond level
  • None these

Answer :All the above

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

In a syphon aqueduct:


Options are :

  • Drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough
  • Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough
  • Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough
  • Drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough

Answer :Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 9

A land is said to be water-logged if its soil pores within:


Options are :

  • All the above
  • A depth of 50 cm are saturated
  • Root zone of the crops are saturated
  • A depth of 40 cm are saturated

Answer :Root zone of the crops are saturated

According to Kennedy, the critical velocity (V0) in metres in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel)


A.


B.


C.


D.


Options are :

  • A
  • C
  • B
  • D

Answer :B

The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than:


Options are :

  • 10 cm
  • 30 cm
  • 40 cm
  • 20 cm

Answer :30 cm

Concrete Technology MCQ Practice Questions (Civil Eng) Set 2

If water table is comparatively high, the irrigation canal becomes useless, due to:


Options are :

  • Water logging of the cultivated areas
  • Uncertain water demand
  • Spread of malaria
  • All the above
  • Large amount of seepage

Answer :All the above

According to Lacey, depth of scour in a river depends upon the straightness of the reach. If D is the depth of scour in regime flow in a right angled bend, it is:


Options are :

  • 1.75 D
  • 1.50 D
  • 2.00 D
  • 1.25 D

Answer :2.00 D

An outlet is said to be proportional if its flexibility, is:


Options are :

  • Less than one
  • One
  • Zero
  • More than one

Answer :One

Hydraulics MCQ Practice Questions (Civil Engineering) Set 9

The field capacity of a soil depends upon:


Options are :

  • Porosity of soil
  • Capillary tension in soil
  • None of these

Answer :Porosity of soil Capillary tension in soil

Garnett's diagrams are used for graphical solution of design equations of a canal by:


Options are :

  • Kennedy's theory
  • Lacey's theory
  • Lindlay theory
  • Gibb's theory

Answer :Kennedy's theory

Pick up the correct statement from the following:


Options are :

  • All the above
  • Saturated pores of a soil in the capillary zone above water table have negative pressure
  • At water table, hydrostatic pressure is zero
  • Water table generally follows the ground surface above it with a few exceptions
  • Static level of water in an open well indicates the position of the water table

Answer :All the above

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

For cereal crops the most commonly adopted method of irrigation, is:


Options are :

  • Sprinkling method
  • Furrow method
  • Free flowing method
  • Check method

Answer :Check method

The ratio of the head recovered to the head put in, is known as:


Options are :

  • Efficiency
  • Sensitivity
  • Flexibility
  • Modular limit

Answer :Efficiency

The level of the fioor of a syphon aqueduct can be obtained:


Options are :

  • None of these
  • Both A and B
  • By subtracting the depth of the culvert from the canal bed level
  • By subtracting the thickness of culvert plus the depth of the culvert from the canal bed level

Answer :By subtracting the thickness of culvert plus the depth of the culvert from the canal bed level

Irrigation MCQ Practice Questions (Civil Engineering) Set 4

If the straight sides of a triangular section of a lined canal with circular bottom of radius D, make an angle ? with horizontal, the hydraulic mean depth is:


Options are :

  • D/4
  • D/3
  • D/2
  • D
  • D/5

Answer :D/2

In rigid module, the discharge:


Options are :

  • Depends upon the water levels of both, i.e. distributary and water course
  • Depends upon the water level in the water course
  • Depends upon the water level in distributary
  • None of these
  • Is independent of water levels in the distributary and water course

Answer :Is independent of water levels in the distributary and water course

While deciding the alignment of a proposed canal taking off from a river at B, three alignments of approximately equal lengths are available

These cross a drainages at C1, C2 and C3 where drainage bed levels C1 > C2 > C3, you will provide at site C3


Options are :

  • A super passage
  • An aqueduct
  • A syphon aqueduct
  • A syphon

Answer :An aqueduct

Concrete Technology MCQ Practice Questions (Civil Eng) Set 4

The uplift pressure on the roof of an inverted syphon, is maximum when:


Options are :

  • Drain in running dry
  • Drain is running with H.F.L.
  • Canal is running dry
  • Canal is running with F.S.L.

Answer :Drain is running with H.F.L.

Lane's weighted creep theory assumes:


Options are :

  • Triple weightage to horizontal creep and one weightage to vertical creep
  • Equal weightage to horizontal and vertical creeps
  • Double weightage to vertical creep and one weightage to horizontal creep
  • Double weightage to horizontal creep and one weightage to vertical creep
  • Triple weightage to vertical creep and one weightage to horizontal creep

Answer :Triple weightage to vertical creep and one weightage to horizontal creep

Process of meandering is due to:


Options are :

  • All the above
  • Discharge and hydraulic properties of streams
  • Sediment load of streams
  • Relative erodibility of the bed and banks

Answer :All the above

Construction Management MCQ Practice Questions (Civil Eng) Set 1

Effective precipitation for a crop may be defined as:


Options are :

  • Total precipitation during the crop period
  • Total precipitation minus the loss due to evaporation
  • Total precipitation minus the loss due to infiltration
  • Available water stored in soil within root zone of the crop

Answer :Available water stored in soil within root zone of the crop

If average particle size of the silt in millimetres is m, the Lacey's silt factor f is proportional to:


Options are :

  • m^(1/3)
  • m
  • m^(2/3)
  • m^(3)
  • m^(1/2)

Answer :m^(1/3)

To hold hydraulic jumps, baffle walls are provided in:


Options are :

  • Sarda type falls
  • Vertical type falls
  • Montague type falls
  • English type falls

Answer :English type falls

Irrigation MCQ Practice Questions (Civil Engineering) Set 5

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