Hydraulic Machines

Centrifugal pump is started with its delivery valve __________________?

Byadmin January 23, 2019August 15, 2021

Centrifugal pump is started with its delivery valve __________________?

A. kept fully closed
B. kept fully open
C. irrespective of any position
D. kept 50% open
E. none of the above

Hydraulic Machines | Mechanical Engineering

Dynamic similarity is said to exist between the model and the prototype, if both of them

Question: Dynamic similarity is said to exist between the model and the prototype, if both of them
[A].

have identical velocities
[B].
are equal in size and shape
[C].
are identical in shape, but differ only in size
[D].
none of the above

Answer: Option D

Explanation:

No answer description available for this question.

Read More Dynamic similarity is said to exist between the model and the prototype, if both of them
Hydraulic Machines | Mechanical Engineering

Mechanical efficiency of a centrifugal pump is the ratio of

Question: Mechanical efficiency of a centrifugal pump is the ratio of
[A].

energy available at the impeller to the energy supplied to the pump by the prime mover
[B].
actual workdone by the pump to the energy supplied to the pump by the prime mover
[C].
energy supplied to the pump to the energy available at the impeller
[D].
manometric head to the energy supplied by the impeller per kN of water

Answer: Option A

Explanation:

No answer description available for this question.

Read More Mechanical efficiency of a centrifugal pump is the ratio of
Hydraulic Machines | Mechanical Engineering

The air vessel, in a reciprocating pump, is a cast iron closed chamber having an opening at its base.

Question: The air vessel, in a reciprocating pump, is a cast iron closed chamber having an opening at its base.
[A].

Agree
[B].
Disagree

Answer: Option A

Explanation:

No answer description available for this question.

Read More The air vessel, in a reciprocating pump, is a cast iron closed chamber having an opening at its base.
Hydraulic Machines | Mechanical Engineering

Overall efficiency of a centrifugal pump is the ratio of

Question: Overall efficiency of a centrifugal pump is the ratio of
[A].

energy available at the impeller to the energy supplied to the pump by the prime mover
[B].
actual workdone by the pump to the energy supplied to the pump by the prime mover
[C].
energy supplied to the pump to the energy available at the impeller
[D].
manometric head to the energy supplied by the impeller per kN of water

Answer: Option B

Explanation:

No answer description available for this question.

Read More Overall efficiency of a centrifugal pump is the ratio of
Hydraulic Machines | Mechanical Engineering

In a reciprocating pump, air vessels are fitted to the suction pipe and delivery pipe close to the cylinder of the pump.

Question: In a reciprocating pump, air vessels are fitted to the suction pipe and delivery pipe close to the cylinder of the pump.
[A].

True
[B].
False

Answer: Option A

Explanation:

No answer description available for this question.

Read More In a reciprocating pump, air vessels are fitted to the suction pipe and delivery pipe close to the cylinder of the pump.
Hydraulic Machines | Mechanical Engineering

In a Francis turbine, the pressure at inlet is __________ that at outlet.

Question: In a Francis turbine, the pressure at inlet is __________ that at outlet.
[A].

less than
[B].
more than

Answer: Option B

Explanation:

No answer description available for this question.

Read More In a Francis turbine, the pressure at inlet is __________ that at outlet.

Similar Posts