The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is_________________?

Question: With a constant diameter impeller of a centrifugal pump
[A].

its capacity varies directly as the square of speed.

[B].

head varies as the square of speed.

[C].

horsepower input varies as the square of speed.

[D].

head varies as the speed.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Boundary layer thickness in laminar flow over a flat plate increases as(where, d = distance from the leading edge.)
[A].

d

[B].

d1/3

[C].

d2

[D].

d2/3

Answer: Option A

Explanation:

No answer description available for this question.

Question: In case of supersonic flow of a fluid through pipeline, the ‘Mach number’ is
[A].

0

[B].

1

[C].

< 1

[D].

> 1

Answer: Option D

Explanation:

No answer description available for this question.

Question: In Newton’s law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass varies as the __________ of its diameter.
[A].

inverse

[B].

square root

[C].

second power

[D].

first power

Answer: Option B

Explanation:

No answer description available for this question.

Question: Cp/Cv is termed as
[A].

adiabatic constant

[B].

Mach number

[C].

Weber number

[D].

Prandtl number

Answer: Option A

Explanation:

No answer description available for this question.