Hydraulics and Fluid Mechanics

Question: Newton’s law of viscosity is a relationship between
[A].

pressure, velocity and temperature

[B].

shear stress and rate of shear strain

[C].

shear stress and velocity

[D].

rate of shear strain and temperature

Answer: Option B

Explanation:

No answer description available for this question.

Question: A thick liquid like a syrup has a __________ viscosity than a light liquid like water.
[A].

lesser

[B].

greater

Answer: Option B

Explanation:

No answer description available for this question.

Question: According to Newton’s law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain.
[A].

equal to

[B].

directly proportional

[C].

inversely proportional

Answer: Option B

Explanation:

No answer description available for this question.

Question: A venturiflume is used to measure
[A].

pressure of liquid

[B].

discharge of liquid

[C].

pressure difference between two points in a channel

[D].

pressure difference between two points in a pipe

Answer: Option B

Explanation:

No answer description available for this question.

Question: A structure whose width is __________ the width of the channel, is called a flumed structure.
[A].

less than

[B].

more than

Answer: Option A

Explanation:

No answer description available for this question.

Question: A venturiflume is a flumed structure constructed across a channel by restricting its width.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.

Question: In a venturiflume, the flow takes place at
[A].

atmospheric pressure

[B].

gauge pressure

[C].

absolute pressure

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: If the depth of water in an open channel is less than the critical depth, the flow is called
[A].

critical flow

[B].

turbulent flow

[C].

tranquil flow

[D].

torrential flow

Answer: Option D

Explanation:

No answer description available for this question.

Question: If the depth of water in an open channel is greater than the critical depth, the flow is called
[A].

critical flow

[B].

turbulent flow

[C].

tranquil flow

[D].

torrential flow

Answer: Option C

Explanation:

No answer description available for this question.

Question: In open channels, the specific energy is the
[A].

total energy per unit discharge

[B].

total energy measured with respect to the datum passing through the bottom of the channel

[C].

total energy measured above the horizontal datum

[D].

kinetic energy plotted above the free surface of water

Answer: Option B

Explanation:

No answer description available for this question.