The Prartdtl mixing length is_________________?

Question: Centrifugal pumps as compared to reciprocating pumps
[A].

run at a lower speed for the same discharge.

[B].

do not need priming.

[C].

deliver fluid with pulsating/fluctuating discharge.

[D].

can be run with discharge line valve closed for a short interval.

Answer: Option D

Explanation:

No answer description available for this question.

Question: Co-efficient of discharge (Cd) is defined as actual discharge/theoretical discharge and is equal to Cc . Cv; where Cc = Co-efficient of contraction and Cv = co-efficient of velocity. Cd of an orifice is usually about
[A].

0.42

[B].

0.62

[C].

0.82

[D].

0.98

Answer: Option B

Explanation:

No answer description available for this question.

Question: A weir is used to measure the large water discharge rate from a river or from an open channel. A weir is not of __________ shape.
[A].

circular

[B].

rectangular

[C].

triangular

[D].

trapezoidal

Answer: Option A

Explanation:

No answer description available for this question.

Question: With the increase in depth, the hydrostatic pressure in an unaccelerated incompressible fluid (in a constant gravitational field)
[A].

decreases.

[B].

increases linearly.

[C].

increases exponentially.

[D].

remains constant.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Cavitation in a centrifugal pump results from
[A].

high discharge pressure

[B].

low barometric pressure

[C].

high discharge velocity

[D].

high discharge rate

Answer: Option B

Explanation:

No answer description available for this question.