Hydraulic Machines

Medium specific speed of a pump implies it is_________________?

Byadmin January 23, 2019August 15, 2021

Medium specific speed of a pump implies it is_________________?

A. centrifugal pump
B. mixed flow pump
C. axial flow pump
D. any one of the above
E. none of the above

Hydraulic Machines | Mechanical Engineering

If the net positive suction head (NPSH) requirement for the pump is not satisfied, then

Question: If the net positive suction head (NPSH) requirement for the pump is not satisfied, then
[A].

no flow will take place
[B].
cavitation will be formed
[C].
efficiency will be low
[D].
excessive power will be consumed

Answer: Option B

Explanation:

No answer description available for this question.

Read More If the net positive suction head (NPSH) requirement for the pump is not satisfied, then
Hydraulic Machines

In a centrifugal pump casing, the flow of water leaving the_______________?

In a centrifugal pump casing, the flow of water leaving the_______________?

A. radial
B. radial
C. centrifugal
D. rectilinear
E. vortex

Read More In a centrifugal pump casing, the flow of water leaving the_______________?
Hydraulic Machines

Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of_______________?

Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of_______________?

A. 39.2%
B. 49.2%
C. 68.8%
D. 84.8%
E. 91.6%.

Read More Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of_______________?
Hydraulic Machines | Mechanical Engineering

A ship with jet propulsion draws water through inlet orifices at right angles to the direction of its motion. The propelling force of the jet is (where a = Area of the jet, Vr = Relative velocity of the jet and ship = V + v, v = Velocity of the ship, and V = Velocity of the jet issuing from the ship)

Question: A ship with jet propulsion draws water through inlet orifices at right angles to the direction of its motion. The propelling force of the jet is (where a = Area of the jet, Vr = Relative velocity of the jet and ship = V + v, v = Velocity of the ship, and V = Velocity of the jet issuing from the ship)
[A].

[B].

[C].

[D].

Answer: Option B

Explanation:

No answer description available for this question.

Read More A ship with jet propulsion draws water through inlet orifices at right angles to the direction of its motion. The propelling force of the jet is (where a = Area of the jet, Vr = Relative velocity of the jet and ship = V + v, v = Velocity of the ship, and V = Velocity of the jet issuing from the ship)
Hydraulic Machines

Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of____________________?

Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of____________________?

A. high initial and maintenance cost
B. lower discharge
C. lower speed of operation
D. necessity of air vessel
E. all of the above

Read More Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of____________________?
Hydraulic Machines | Mechanical Engineering

In a Francis turbine runner, the number of blades are generally between

Question: In a Francis turbine runner, the number of blades are generally between
[A].

2 to 4
[B].
4 to 8
[C].
8 to l6
[D].
16 to 24

Answer: Option D

Explanation:

No answer description available for this question.

Read More In a Francis turbine runner, the number of blades are generally between

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