Hydraulics MCQ Practice Questions (Civil Engineering) Set 10

To replace a pipe of diameter D by n parallel pipes of diameter d, the formula is:


A.


B.


C.


D.


E.


Options are :

  • B
  • C
  • D
  • E
  • A

Answer :D

Hydraulics MCQ Practice Questions (Civil Engineering) Set 8

The ratio of the percentage error in the discharge and percentage error in the measurement of head, over rectangular notch, is:


Options are :

  • 3/4
  • 1/2
  • 3/2
  • 2/3

Answer :3/2

For the two dimensional flow, the stream function is given by ? = 2xy. The velocity at a point (3, 4) is:


Options are :

  • 15 m/sec
  • 10 m/sec
  • 6 m/sec
  • 8 m/sec
  • 12 m/sec

Answer :10 m/sec

In a short cylindercial external mouthpiece, the venacontracta occurs at a distance from the outlet of orifice equal to:


Options are :

  • One-fourth the diameter of the orifice
  • Two-third the diameter of the orifice
  • One-third the diameter of the orifice
  • Diameter of the orifice

Answer :One-fourth the diameter of the orifice

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 7

In steady flow, which one of the following changes with time:


Options are :

  • None of these
  • Pressure
  • Velocity
  • Density

Answer :None of these

The width of a weir with end contraction, is:


Options are :

  • Equal to the width of the channel
  • Less than the width of the channel
  • None of these
  • Half the width of the channel

Answer :Less than the width of the channel

If the pressure at the inlet of a pipe is 90 kg/cm2 and pressure drop over the pipe line is 10 kg/cm2, the efficiency of transmission, is:


Options are :

  • 66.6%
  • 77.7%
  • 88.8%
  • 55.5%

Answer :88.8%

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

The unit of the viscosity is:


Options are :

  • Newton-sec^(2)/m^(3)
  • m^(2) per sec
  • Newton sec per m^(2)
  • kg sec/m^(2)

Answer :Newton sec per m^(2)

The centre of pressure of a vertical plane immersed in a liquid is at:


Options are :

  • None of these
  • Centre of lower edge
  • Centre of higher edge
  • Centroid of the area

Answer :None of these

Weber number is the ratio of inertia force to:


Options are :

  • Surface tension
  • Gravitational force
  • Elasticity
  • Viscosity

Answer :Surface tension

Concrete Technology MCQ Practice Questions (Civil Eng) Set 1

The gases are considered incompressible if Match number is:


Options are :

  • Equal to 1.5
  • Equal to 1.0
  • Less than 0.2
  • Is more than 0.5

Answer :Less than 0.2

The dimensionless parameter not applicable to flowing liquids, is:


Options are :

  • Kinematic viscosity
  • Friction factor
  • Reynold number
  • Pressure coefficient
  • Weber number

Answer :Kinematic viscosity

Most economical section of a circular channel for maximum velocity, is if:


Options are :

  • Wetted perimeter = 2.245 diameters
  • Hydraulic mean depth = 0.304 diameter
  • Depth of water = 0.810 diameter
  • All the above

Answer :All the above

Concrete Technology MCQ Practice Questions (Civil Eng) Set 2

The hydrostatic force acts through:


Options are :

  • Centre of pressure
  • Centre of bottom edge
  • Centre of top edge
  • Metacentre

Answer :Centre of pressure

The flow in a channel is said to be non-uniform, if:


Options are :

  • Head needed to overcome frictional reistance is less than the drop in elevation of channel bed
  • All the above
  • Head needed to overcome frictional resistance is more than the drop in elevation of channel bed
  • Free water surface of an open channel is not parallel to the bed of channel

Answer :All the above

The intensity of pressure due to sudden closure of a valve of a pipe in which water flows with velocity v, is directly proportional to:


Options are :

  • None of these
  • Specific weight of water
  • Bulk modulus of elasticity of water
  • Square root of the bulk modulus of elasticity of water

Answer :Square root of the bulk modulus of elasticity of water

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

A body of dimensions 1.5 m x 1.0 m x 2 m weighs 3000 kg in water. Its specific gravity is:


Options are :

  • 1.1
  • 0.8
  • 1.0
  • 0.9

Answer :1.1

The flow in which each liquid particle has a definite path and the paths of adjacent particles do not cross each other, is called:


Options are :

  • Steady flow
  • Uniform flow
  • Turbulent flow
  • Stream line flow

Answer :Stream line flow

The pressure rise due to water hammer depends upon:


Options are :

  • The elasticity of the pipe material
  • The velocity of flow of water in the pipe
  • Time taken to close the valve
  • The length of pipe
  • All of above

Answer :All of above

Irrigation MCQ Practice Questions (Civil Engineering) Set 1

Comment / Suggestion Section
Point our Mistakes and Post Your Suggestions