Surface tension__________________?

Question: Cavitation occurs in a centrifugal pump when the suction pressure is
[A].

less than the vapour pressure of the liquid at that temperature.

[B].

greater than the vapour pressure of the liquid at that temperature.

[C].

equal to the vapour pressure.

[D].

equal to the developed head.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head.
[A].

manometric

[B].

total

[C].

static

[D].

friction

Answer: Option A

Explanation:

No answer description available for this question.

Question: Assuming flow to be laminar, if the diameter of the pipe is halved, then the pressure drop will
[A].

increase

[B].

decrease

[C].

remain same

[D].

be quadrupled

Answer: Option A

Explanation:

No answer description available for this question.

Question: For an unstable equilibrium of a floating body (where, M = metacentre.)
[A].

M is above G

[B].

M is below G

[C].

M & G coincide

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.