Hydraulic Machines

Axial flow pump is started with its delivery valve________________?

Byadmin January 23, 2019August 15, 2021

Axial flow 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

Casting of a centrifugal pump is designed so as to minimize________________?

Casting of a centrifugal pump is designed so as to minimize________________?

A. friction loss
B. cavitation
C. static head
D. loss of kinetic energy
E. starting time

Read More Casting of a centrifugal pump is designed so as to minimize________________?
Hydraulic Machines

Reaction turbines are used for____________________?

Reaction turbines are used for____________________?

A. low head
B. high head
C. high head and low discharge
D. high head and high discharge
E. low head and high discharge

Read More Reaction turbines are used for____________________?
Hydraulic Machines | Mechanical Engineering

A Kaplan turbine is preferred for a specific speed of 300 to 1000 r.p.m.

Question: A Kaplan turbine is preferred for a specific speed of 300 to 1000 r.p.m.
[A].

Yes
[B].
No

Answer: Option A

Explanation:

No answer description available for this question.

Read More A Kaplan turbine is preferred for a specific speed of 300 to 1000 r.p.m.
Hydraulic Machines | Mechanical Engineering

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

Question: Geometric 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].
have identical forces

Answer: Option C

Explanation:

No answer description available for this question.

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

Braking jet in an impulse turbine is used

Question: Braking jet in an impulse turbine is used
[A].

to break the jet of water
[B].
to bring the runner to rest in a short time
[C].
to change the direction of runner
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More Braking jet in an impulse turbine is used
Hydraulic Machines | Mechanical Engineering

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

Question: Kinematic 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].
have identical forces

Answer: Option A

Explanation:

No answer description available for this question.

Read More Kinematic similarity is said to exist between the model and the prototype, if both of them

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