CHEMICAL ENGINEERING

Question: With increase in pressure, the latent heat of steam
[A].

increases.

[B].

decreases.

[C].

remains unchanged.

[D].

data insufficient; can’t be predicted.

Answer: Option B

Explanation:

No answer description available for this question.

Question: With increase in steam pressure, its specific volume decreases
[A].

rapidly first and then slowly.

[B].

linearly.

[C].

slowly first and then rapidly.

[D].

exponentially.

Answer: Option A

Explanation:

No answer description available for this question.

Question: With increase in pressure, the saturation temperature of steam
[A].

increases rapidly first and then slowly.

[B].

increases slowly first and then rapidly.

[C].

first increases and then decreases.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Out of the following, the rays having the lowest wavelength is the
[A].

radio waves

[B].

ultrasonic waves

[C].

infra red rays

[D].

X-rays

Answer: Option A

Explanation:

No answer description available for this question.

Question: Fatigue strength of a material can not be increased by
[A].

cold working

[B].

hot working

[C].

shot peening

[D].

any of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: An ideal fluid is
[A].

viscous & incompressible.

[B].

non-viscous & compressible.

[C].

non-viscous & incompressible.

[D].

viscous & compressible.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Carburettor in a spark ignition engine is used to
[A].

mix air-fuel in the desired ratio.

[B].

maintain a constant speed at varying loads.

[C].

adjust the stroke length.

[D].

increase the compression ratio.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Compression ratio of an I.C. engine is the ratio of the
[A].

clearance volume to the volume swept by piston per stroke.

[B].

volume of air in cylinder before compression to that after compression.

[C].

pressure after compression to that before compression.

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: Air-petrol ratio in an automotive petrol engine is around
[A].

14 : 1

[B].

22 : 1

[C].

25 : 1

[D].

4 : 1

Answer: Option A

Explanation:

No answer description available for this question.

Question: __________ stress can not be sustained by a fluid in equilibrium.
[A].

Shear

[B].

Tensile

[C].

Compressive

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.