Minimum possible diameter of a packed coloumn is decided mainly by the

Question: Characteristic curves for a centrifugal pump plotted against its capacity is shown in the diagram. x, y and z denote respectively
[A].

efficiency, head and B.H.P.

[B].

head, efficiency and B.H.P.

[C].

B.H.P., efficiency and head

[D].

efficiency, B.H.P. and head

Answer: Option B

Explanation:

No answer description available for this question.

Question: Check valves are used
[A].

at high pressure.

[B].

in bends.

[C].

for controlling water flow.

[D].

for unidirectional flow.

Answer: Option D

Explanation:

No answer description available for this question.

Question: A rotameter works on the principle of __________ pressure drop.
[A].

constant

[B].

variable

[C].

both (a) & (b)

[D].

neither (a) nor (b)

Answer: Option A

Explanation:

No answer description available for this question.