Hydraulics MCQ Practice Questions (Civil Engineering) Set 2

The ratio of inertia force of a flowing fluid and the viscous force of the liquid is called:


Options are :

  • Euler's number
  • Froude's number
  • Weber's number
  • Reynold's number

Answer :Reynold's number

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

Flow of water in pipes of diameter more than 3 metres, can be measured by:


Options are :

  • Pitot tube
  • Venturimeter
  • Orifice plate
  • Rotameter

Answer :Rotameter

Specific weight of sea water is more than that of pure water because of:


Options are :

  • Dissolved salts
  • Dissolved air
  • All the above
  • Suspended matter

Answer :All the above

The upper surface of the weir over which water flows, is known as:


Options are :

  • Sill
  • Vein
  • None of these
  • Nappe

Answer :Sill

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 2

In flowing liquids pitot tubes are used measure:


Options are :

  • Pressure
  • Depth
  • Velocity
  • Discharge

Answer :Velocity

Specific energy of a flowing fluid per unit weight is:


A.


B.


C.


D.


Options are :

  • C
  • A
  • D
  • B

Answer :C

For solving network problems of pipes, necessary condition is:


Options are :

  • All the above
  • Continuity equation
  • Energy equation
  • Darcy-Weisbach equation

Answer :All the above

Construction Management MCQ Practice Questions (Civil Eng) Set 3

In two dimensional flow the components of velocity are given by u = ax; v = by. The stream lines will be:


Options are :

  • Parabolic
  • Elliptical
  • Circular
  • Hyperbolic

Answer :Hyperbolic

On a flow net diagram, the distance between two consecutive steam lines at two successive sections are 1 cm and 0.5 cm respectively. If the velocity at the first section is 1 m/sec, the velocity at the second is:


Options are :

  • 2.5 m/sec
  • 3 m/sec
  • 0.5 m/sec
  • 2.0 m/sec
  • 1.0 m/sec

Answer :2.0 m/sec

The instrument used for measuring the velocity of flow, is known as:


Options are :

  • None of these
  • Venturimeter
  • Orifice meter
  • Pitot tube

Answer :Pitot tube

Concrete Technology MCQ Practice Questions (Civil Eng) Set 2

The minimum specific energy of flow of water in open channel is: (where hc is the critical depth)


A.

hc


B.


C.


D.

hc


Options are :

  • A
  • B
  • C
  • D

Answer :C

The discharge formula Q = Cd ?2gH x A is used for rectangular:


Options are :

  • Small and large orifices only
  • Small orifices only
  • Large orifices only
  • For all types of orifices

Answer :Large orifices only

An independent mass of a fluid does not posses:


Options are :

  • Kinetic energy
  • None of these
  • Pressure energy
  • Elevation energy

Answer :Pressure energy

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

Differential manometers are used to measure:


Options are :

  • Atmospheric pressure
  • Very low pressure
  • Difference in pressure at two points
  • Pressure in water channels, pipes, etc

Answer :Difference in pressure at two points

The property of steam function ? is:


Options are :

  • The flow around any path in the fluid is zero for continuous flow
  • The velocity vector may be found by differentiating the stream function
  • All the above
  • The rate of change of ? with distance in an arbitrary direction, is proportional to the component of velocity normal to that direction
  • ? is constant everwhere on any stream line

Answer :All the above

The most familiar form of Bernoulli's equation, is:


A.


B.


C.

= constant head


D.

None of these


Options are :

  • A
  • D
  • B
  • C

Answer :C

Hydraulics MCQ Practice Questions (Civil Engineering) Set 9

When a body is totally or partially immersed in a fluid, it is buoyed up by a force equal to:


Options are :

  • Weight of the body
  • Weight of the fluid displaced by the body
  • Weight of the body and fluild displaced by the body
  • None of these
  • Difference of weights of the fluid displaced and that of the body

Answer :Weight of the fluid displaced by the body

When two layers of a fluid separated by dy move over the other with a difference of velocity dv, causes a shearing stress

, where ? is known as:


Options are :

  • All the above
  • Dynamic viscosity
  • Viscosity
  • Coefficient of viscosity
  • Absolute viscosity

Answer :All the above

Most economical section of a circular channel for maximum discharge:


Options are :

  • Hydraulic mean depth = 0.286 diameter of circular section
  • Depth of water = 0.95 diameter of circular section
  • Wetted perimeter = 2.83 depth of water
  • Wetted perimeter = 2.6 diameter of circular section
  • All the above

Answer :All the above

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

The moment of inertia of a floating body along its longitudinal axis and the volume of water displaced by it are I and V respectively

The height of the metacentre above centre of buoyancy of the body, is:


A.


B.


C.


D.


E.


Options are :

  • D
  • A
  • E
  • B
  • C

Answer :C

While applying the Bernoulli's equation

= total head, the work any section done on the flow system, if any:


Options are :

  • Is added on the right side of the equation
  • Is ignored
  • None of these
  • Is added on the left side of the equation

Answer :Is added on the left side of the equation

The radius of gyration of the water line of a floating ship is 4 m and its metacentric height is 72.5 cm. The period of oscillation of the ship, is:


Options are :

  • 2?
  • ?/2
  • 3?
  • ?
  • 4?

Answer :3?

Concrete Technology MCQ Practice Questions (Civil Eng) Set 2

A tank 4m x 3m x 2m containing an oil of specific gravity 0.83 is moved with an acceleration g/2 m sec2. The ratio of the pressures at its bottom when it is moving vertically up and down, is:


Options are :

  • 3
  • 1/3
  • 2
  • 1/2

Answer :3

A pitot tube is used to measure:


Options are :

  • Difference in pressure
  • Pressure
  • None of these
  • Velocity of flow

Answer :Velocity of flow

If D is the diameter of a pipe of length L and f is the coefficient of friction of pipe then diameter of the nozzle d is:


A.


B.


C.


D.

None of these


Options are :

  • D
  • B
  • A
  • C

Answer :A

Irrigation MCQ Practice Questions (Civil Engineering) Set 4

A syphon is used:


Options are :

  • To fill up a tank with water at higher level from a lower level
  • None of these
  • To supply water to a town from higher level to lower level
  • To connect water reservoirs at different levels intervened by a hill

Answer :To connect water reservoirs at different levels intervened by a hill

The ratio of maximum velocity to average velocity of viscous fluid through a circular pipe is:


Options are :

  • 0.5
  • 1.25
  • 0.75
  • 2.00

Answer :2.00

If the total head of the nozzle of a pipe is 37.5 m and discharge is 1 cumec, the power generated is:


Options are :

  • 400 H.P.
  • 550 H.P.
  • 450 H.P.
  • 500 H.P.

Answer :500 H.P.

Hydraulics MCQ Practice Questions (Civil Engineering) Set 4

Time of emptying liquid from a hemispherical vessel through an orifice at its bottom, is:


A.


B.


C.


D.


Options are :

  • C
  • A
  • B
  • D

Answer :D

The thickness of a sharp crested weir is kept less than:


Options are :

  • One-fourth of the height of water on the sill
  • One-third of the height of water on the sill
  • None of these
  • Two-third of the height of water on the sill
  • One-half of the height of water on the sill

Answer :One-half of the height of water on the sill

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