The atmospheric pressure with rise in altitude decreases__________________?

Question: A perfect gas
[A].

does not satisfy PV = nRT.

[B].

is incompressible and has zero viscosity.

[C].

has constant specific heat.

[D].

can’t develop shear stresses.

Answer: Option C

Explanation:

No answer description available for this question.

Question: While starting a centrifugal pump, its delivery valve should be kept
[A].

opened.

[B].

closed.

[C].

either opened or closed ; it does not make any difference.

[D].

either opened or closed; depending on the fluid viscosity.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Head developed by a centrifugal pump depends on its
[A].

speed

[B].

impeller diameter

[C].

both (a) and (b)

[D].

neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

Question: Euler’s equation of motion is a statement expressing
[A].

conservation of mass.

[B].

conservation of energy.

[C].

Newton’s first law of motion.

[D].

Newton’s second law of motion.

Answer: Option A

Explanation:

No answer description available for this question.

Question: A Newtonion fluid is that
[A].

which follows Newton’s law of motion.

[B].

which needs a minimum shear, before it starts deforming.

[C].

for which shear & deformation are related as

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.