Hydraulics and Fluid Mechanics

Question: In order to avoid tendency of separation at throat in a venturimeter, the ratio of the diameter at throat to the diameter of pipe should be
[A].

[B].

[C].

[D].

Answer: Option D

Explanation:

No answer description available for this question.

Question: In a venturimeter, the velocity of liquid at throat is __________ than at inlet.
[A].

higher

[B].

lower

Answer: Option A

Explanation:

No answer description available for this question.

Question: Barometer is used to measure
[A].

velocity of liquid

[B].

atmospheric pressure

[C].

pressure in pipes and channels

[D].

difference of pressure between two points in a pipe

Answer: Option B

Explanation:

No answer description available for this question.

Question: Bernoulli’s equation is applied to
[A].

venturimeter

[B].

orifice meter

[C].

pitot tube

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: The Bernoulli’s equation is based on the assumption that
[A].

there is no loss of energy of the liquid flowing

[B].

the velocity of flow is uniform across any cross-section of the pipe

[C].

no force except gravity acts on the fluid

[D].

all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Question: Euler’s equation in the differential form for the motion of liquids is given by
[A].

[B].

[C].

ρ.dp + g.dz + v.dv = 0

[D].

ρ.dp – g.dz + v.dv = 0

Answer: Option A

Explanation:

No answer description available for this question.

Question: According to Bernoulli’s equation
[A].

[B].

[C].

[D].

Answer: Option A

Explanation:

No answer description available for this question.

Question: For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called
[A].

continuity equation

[B].

Bernoulli’s equation

[C].

Pascal’s law

[D].

Archimede’s principle

Answer: Option B

Explanation:

No answer description available for this question.

Question: In two dimensional flow, the flow does not take place in a curve.
[A].

True

[B].

False

Answer: Option B

Explanation:

No answer description available for this question.

Question: In one dimensional flow, the flow
[A].

is steady and uniform

[B].

takes place in straight line

[C].

takes place in curve

[D].

takes place in one direction

Answer: Option B

Explanation:

No answer description available for this question.