In centrifugal pumps, maximum efficiency is obtained when the blades are_________________?

Question: A Pelton wheel is
[A].

tangential flow impulse turbine

[B].

inward flow impulse turbine

[C].

outward flow impulse turbine

[D].

inward flow reaction turbine

Answer: Option A

Explanation:

No answer description available for this question.

Question: A Pelton wheel with one nozzle is preferred for a specific speed between 35 to 60 r.p.m.
[A].

True

[B].

False

Answer: Option B

Explanation:

No answer description available for this question.

Question: If the Francis turbine is run below 50 percent head for a long period, it will not only lose its efficiency but also the cavitation danger will become more serious.
[A].

Agree

[B].

Disagree

Answer: Option A

Explanation:

No answer description available for this question.

Question: Which of the following pump is successfully used for lifting water to the turbines?
[A].

Centrifugal pump

[B].

Reciprocating pump

[C].

Jet pump

[D].

Air lift pump

Answer: Option C

Explanation:

No answer description available for this question.

Question: In a reciprocating pump, air vessels are used to
[A].

smoothen the flow

[B].

reduce suction head

[C].

increase delivery head

[D].

reduce acceleration head

Answer: Option D

Explanation:

No answer description available for this question.