Irrigation MCQ Practice Questions (Civil Engineering) Set 5

Which one of the following statements is correct ?


Options are :

  • The canal system and the drainage system are complementary
  • The canal system runs on ridges, gets divided into smaller channels and spreads its water on the land
  • The drainage system runs along the lowest line, collects drainage water from the slopes and joins the main stream
  • All the above

Answer :All the above

For diversion of flood water of rivers, the type of canal constructed, is:


Options are :

  • Perennial canal
  • Inundation canal
  • Ridge canal
  • Canal

Answer :Inundation canal

Lacey's equation for calculating flood discharge in rivers, is:


Options are :

  • V = 10.8 R^(2/3) S^(1/3)
  • V = 10.8 R^(1/2) S^(1/2)
  • V = 10.8 R^(1/3) S^(2/3)
  • V = 10.8 R^(2/3) S^(1/2)

Answer :V = 10.8 R^(2/3) S^(1/3)

Irrigation MCQ Practice Questions (Civil Engineering) Set 5

A current meter measures the velocity of flow, if it is held:


Options are :

  • At any point within the cross-section
  • On the surface of water
  • None of these
  • At the bottom of channel

Answer :At any point within the cross-section

A river is said to be of:


Options are :

  • Meandering type if it flows in sinuous curve
  • Aggrading type if it builds up its bed to a certain slope
  • Degrading type if it cuts its bed to a certain slope
  • All the above

Answer :All the above

Cross regulators in main canals are provided:


Options are :

  • None of these
  • To regulate water supply in the distributaries
  • To overflow excessive flow water
  • To increase water head upstream when a main canal is running with low supplies

Answer :To increase water head upstream when a main canal is running with low supplies

Concrete Technology MCQ Practice Questions (Civil Eng) Set 7

Finally formed berms in canals are provided for:


Options are :

  • Protection of banks erosion by the waves
  • All the above
  • Strengthening of banks
  • Control of seepage losses

Answer :All the above

If D1 and D2 are depths of water upstream and down stream of a hydraulic jump, the loss of head at the jump, is:


A.


B.


C.


D.


Options are :

  • C
  • A
  • D
  • B

Answer :D

Pick up the correct sequence of the part of a canal system from the following:


Options are :

  • Head work-distributary-branch canal-minor
  • Head works-main canal-branch canal-dis-tributary-minor
  • Heads works-branch canal-main canal distributary, minor
  • Head works-main canal-branch canal-minor-distributary

Answer :Head works-main canal-branch canal-dis-tributary-minor

Concrete Technology MCQ Practice Questions (Civil Eng) Set 5

According to Lacey, in regime conditions:


Options are :

  • Entire cross-section of the channel is generated at all points by the forces normal to the wetted perimeter
  • None of these
  • Silt is kept in suspension by vertical components of eddies

Answer :Entire cross-section of the channel is generated at all points by the forces normal to the wetted perimeter Silt is kept in suspension by vertical components of eddies

For standing crops in undulating sandy fields, the best method of irrigation, is:


Options are :

  • Sprinkler irrigation
  • Furrow method
  • None of these
  • Free flooding
  • Check method

Answer :Sprinkler irrigation

In a concrete canal the approximate permissible velocity of water should not exceed:


Options are :

  • 1 m/sec
  • 0.5 m/sec
  • 2 m/sec
  • 2.5 m/sec
  • 1.5 m/sec

Answer :2 m/sec

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

V and R are the regime mean velocity and hydraulic mean depth respectively in metres. Lacey's silt factor f is:


A.


B.


C.


D.


Options are :

  • B
  • A
  • C
  • D

Answer :C

The ratio of the rate of change of discharge of an outlet and parent channel, is known as:


Options are :

  • Sensitivity
  • Modular limit
  • Flexibility
  • Efficiency

Answer :Flexibility

Pick up the correct statement from the following:


Options are :

  • Escapes are essential safety valves in a canal system
  • The capacity of escapes should not be less than the capacity of the canal at its location
  • The escapes are aligned to take advantage of contours of lower values
  • The escapes must lead the surplus water to natural drainages
  • All the above

Answer :All the above

Concrete Technology MCQ Practice Questions (Civil Eng) Set 6

If the height of the hydraulic gradient line above the floor of thickness t is h and the specific gravity of the material of the floor is G, the minimum thickness t of the floor down stream of the crestwall, is given by the equation:


A.


B.


C.


D.


Options are :

  • B
  • C
  • D
  • A

Answer :C

In case of a trapezoidal notch fall:


A.

Top width of the notch is kept between 3/4 th of full water depth above the sill of the notch


B.

Top length of the piers should not be less than their thickness


C.

Splay up stream from the notch section is 45


D.

Splay down stream from the notch section is


E.

All the above


Options are :

  • A
  • E
  • B
  • C
  • D

Answer :E

If A is the area of the surface, x is the depth of its C.G. from the surface of the water and ? is the density of water, then:


Options are :

  • Total pressure on the surface is equal to ? x
  • Depth of the centre of pressure is 2/3H vertically below the surface
  • Depth of the point at which total pressure acts is equal to its moment of inertia divided by A x
  • All the above

Answer :All the above

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

A counter berm is:


Options are :

  • A horizontal benching provided on the inside slope
  • A horizontal benching provided on the outside slope
  • A vertical benching provided on the outer edge of the bank
  • A vertical benching provided on the inner edge of the bank

Answer :A horizontal benching provided on the outside slope

A fall which maintains its depth, is:


Options are :

  • A trapezoidal notch fall
  • A rectangular notch fall
  • A low weir fall
  • All the above

Answer :All the above

The most suitable section of a lined canal, is:


Options are :

  • Trapezoidal section with rounded corners for large canals
  • Triangular section with circular bottom for small canals
  • None of these
  • Rectangular section with rounded corners for large canals

Answer :Triangular section with circular bottom for small canals Rectangular section with rounded corners for large canals

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

The water face of the guide banks, is protected by:


Options are :

  • One men stone pitching
  • Two man stone pitching
  • Five man stone pitching
  • Three man stone pitching
  • Four man stone pitching

Answer :One men stone pitching

To control the silt entry into a distributary at head regulator, King's vanes are provided which are the walls:


A.

Of R.C.C. or steel plate 8 cm thick


B.

Of height l/3rd to l/4th the depth of water in the main canal


C.

Spaced at interval of

times their heights


D.

Extending about one metre beyond a line drawn at an inclination of 2 : 1 to the axis of main canal


E.

All the above


Options are :

  • C
  • E
  • A
  • B
  • D

Answer :E

Disposal of extra excavated earth of canals, is utilised to provide a spoil bank on:


Options are :

  • All the above
  • Left side
  • Both sides
  • Right side

Answer :All the above

Hydraulics MCQ Practice Questions (Civil Engineering) Set 5

The ratio of the rate of change of discharge of an outlet to the rate of change in level of water surface in a distributary at its normal depth, is known as:


Options are :

  • Modular limit
  • Flexibility
  • Efficiency
  • Sensitivity

Answer :Sensitivity

If Dc is the critical depth, D is the depth of water down stream and HL is the total head loss at the cistern of a vertical fall, the depth x of the cistern below the bed level down stream suggested by Blench, is:


A.


B.


C.


D.


Options are :

  • B
  • C
  • D
  • A

Answer :B

The ratio of the discharge over a trapezoidal crest to a rectangular crest of falls of identical parameters, is:


Options are :

  • 1.074
  • 2.053
  • 1.054
  • 1.084
  • 1.064

Answer :1.084

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 2

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