Hydraulics MCQ Practice Questions (Civil Engineering) Set 3

Inside pressure in a hollow soap bubble in the air is: (where d is the diameter of the bubble)


A.


B.


C.


D.


Options are :

  • B
  • A
  • C
  • D

Answer :D

Concrete Technology MCQ Practice Questions (Civil Eng) Set 2

In a circular pipe of length L and diameter d, a viscous liquid is flowing with a velocity v. The loss in head, is:


A.


B.


C.


D.


E.

None of these


Options are :

  • C
  • D
  • B
  • E
  • A

Answer :A

Maximum efficiency of transmission of power through a pipe, is:


Options are :

  • 33.3%
  • 50%
  • 25%
  • 66.67%

Answer :66.67%

The time required to close a valve gradually is (where L is the length of pipe and C = velocity of pressure wave)


A.


B.

?


C.

>


D.

<


Options are :

  • A
  • B
  • D
  • C

Answer :C

Irrigation MCQ Practice Questions (Civil Engineering) Set 5

A piezometer opening in pipes measures:


Options are :

  • Velocity head
  • Negative static pressure
  • Total pressure
  • Static pressure

Answer :Static pressure

If the volume of a liquid weighing 3000 kg is 4 cubic metres, 0.75 is its:


Options are :

  • None of these
  • Specific gravity
  • Specific mass
  • Specific weight

Answer :Specific gravity

Pick up the correct statement regarding Borda's mouth piece running full from the following:


Options are :

  • Coefficient of contraction is 1
  • Theoretical velocity at the outlet is ?2gH
  • Actual velocity at the out let is ?gH
  • Coefficient of velocity is 1/?2
  • All the above

Answer :All the above

Hydraulics MCQ Practice Questions (Civil Engineering) Set 10

If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.1 kg/cm2, the pressure at a depth of 2.5 m, is:


Options are :

  • 2 metres of water
  • 1 metre of water
  • 3.5 metres of water
  • 3 metres of water
  • 4.0 metres of water

Answer :3 metres of water

A pipe of 0.1 m^(2) cross sectional area suddenly enlarges to 0.3 m^(2) cross-sectional area. If the discharge of the pipe is 0.3 m^(3) /sec, the head loss is:


Options are :

  • 1g m of water
  • g/2 m of water
  • ?g m of water
  • 2/g m of water

Answer :2/g m of water

Hydrostatic pressure on a dam depends upon its:


Options are :

  • Shape
  • None of these
  • Length
  • Depth
  • Material

Answer :Shape Depth

Hydraulics MCQ Practice Questions (Civil Engineering) Set 6

The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at its centroid, if:


Options are :

  • All the above
  • Area is horizontal
  • Area is vertical
  • Area is inclined

Answer :All the above

Product of Renold number, Froud's number and Mach number is:


A.


B.


C.


D.


Options are :

  • A
  • D
  • C
  • B

Answer :A

The shear stress distribution in viscous fluid through a circular pipe is:


Options are :

  • None of these
  • Maximum at the inside of surface
  • Maximum at the centre
  • Same throughout the section

Answer :Same throughout the section

Concrete Technology MCQ Practice Questions (Civil Eng) Set 1

Reynold number is the ratio of initial force and:


Options are :

  • Viscosity
  • Surface tension
  • Elasticity
  • Gravitational force

Answer :Viscosity

Bernoulli's equation assumes that:


Options are :

  • Flow is along the stream line
  • Fluid is homogeneous
  • All the above
  • Flow is steady
  • Fluid is non-viscous

Answer :All the above

Pick up the correct statement from the following:


A.

For tranquil flow h > ?2g or v <


B.

For critical flow


C.

For torrential flow h >

or v < ?gh


D.

None of these


Options are :

  • D
  • B
  • A
  • C

Answer :B

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 3

An ideal flow of a liquid obeys:


Options are :

  • Dynamic viscosity law
  • Newton's law of viscosity
  • Newton's second law of motion
  • Continuity equation

Answer :Continuity equation

Critical depth (h) of a channel, is:


A.


B.


C.


D.


Options are :

  • B
  • D
  • A
  • C

Answer :A

A short tube mouthpiece will not run full at its outlet if the head under which the orifice works, is:


Options are :

  • More than 12.2 m of the water
  • Equal of 12.2 m of water
  • None of these
  • Less than 12.2 m of the water

Answer :More than 12.2 m of the water

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 1

Discharge Q over a rectangular weir of length L and height H, is given by the equation:


A.

Q = 2/3 Cd?2g LH^(3/2)


B.

Q = 2/3 CdL H?2gH


C.


D.
All the above


Options are :

  • C
  • D
  • A
  • B

Answer :D

The horizontal component of the force on a curved surface is equal to:


Options are :

  • Weight of liquid vertically below the curved surface
  • Weight of liquid retained by the curved area
  • Product of pressure at its centroid and the area
  • Force on a vetical projection of the curved surface

Answer :Force on a vetical projection of the curved surface

Unit of kinematic viscosity is:


Options are :

  • Newton sec/m^(3)
  • Kg sec/m^(2)
  • Newton sec/m^(2)
  • m^(2)/sec

Answer :m^(2)/sec

Hydraulics MCQ Practice Questions (Civil Engineering) Set 8

The Empirical formula

for discharge over large rectangular weirs, is known as:


Options are :

  • Rehbook formula
  • Bazin formula
  • Francis formula
  • Kutter's formula

Answer :Bazin formula

The maximum vacuum created at the summit of a syphon is:


Options are :

  • 5.5 m of water
  • 2.7 m of water
  • 7.4 m of water
  • None of these

Answer :7.4 m of water

A pipe consisting of several pipes of varying diameters and lengths, may be replaced by an equivalent pipe of diameter D of length:


A.


B.


C.


D.


Options are :

  • A
  • D
  • B
  • C

Answer :C

Irrigation MCQ Practice Questions (Civil Engineering) Set 3

The phenomenon occuring in an open channel when a rapidly flowing stream abruptly changes to a slowly flowing stream causing a distinct rise of liquid surface, is:


Options are :

  • Critical discharge
  • Water hammer
  • Hydraulic jump
  • None of these

Answer :Hydraulic jump

A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the weight of the cylinder is 2000 kgf, the horizontal reaction at B is:


Options are :

  • 18,000 kgf
  • 10,000 kgf
  • 15,000 kgf
  • 20,000 kgf

Answer :18,000 kgf

The diameter (d) of a nozzle fixed at the end of a pipe (diameter D, length L) for maximum energy, is:


A.


B.


C.


D.


Options are :

  • B
  • C
  • D
  • A

Answer :C

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

The momentum correction factor (?) for the viscous flow through a circular pipe is:


Options are :

  • 1.25
  • 1.50
  • 2.00
  • 1.33
  • 1.66

Answer :1.33

The side slope of Cipolletti weir is generally kept:


Options are :

  • 1 to 2
  • 1 : 5
  • 1 to 4
  • 1 to 3

Answer :1 to 4

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