Chemical Engineering Basics

Question: In a fuel cell, chemical energy is converted into
[A].

electrical energy directly.

[B].

mechanical energy.

[C].

electrical energy and stored therein.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Plasma is
[A].

a high temperature neutral gas.

[B].

nothing but ionised gas.

[C].

a source of steady and highest controllable pressure.

[D].

formed at very low temperature.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Gantt charts are used for streamlining the
[A].

inventory control

[B].

production schedule

[C].

sales forecasting

[D].

quality control

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ has the highest melting point out of the following.
[A].

Tungsten

[B].

Zirconium

[C].

Molybdenum

[D].

Tantalum

Answer: Option A

Explanation:

No answer description available for this question.

Question: Which of the following is the terminology used for the temperature at which the phase changes occur in a metal ?
[A].

Critical temperature.

[B].

Recrystallisation temperature.

[C].

Phase transformation temperature.

[D].

Transition temperature.

Answer: Option A

Explanation:

No answer description available for this question.

Question: The factor of safety for brittle materials (having elongation < 5%) is based on the __________ stress.
[A].

yield

[B].

proof

[C].

ultimate

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: __________ number determines whether the fluid flow in an open channel is supercritical, critical or sub-critical.
[A].

Mach

[B].

Reynolds

[C].

Froude

[D].

Weber

Answer: Option C

Explanation:

No answer description available for this question.

Question: The hydraulic radius of a circular pipe of diameter ‘d’ flowing full is
[A].

d/4

[B].

d/2

[C].

2d/3

[D].

d/3

Answer: Option A

Explanation:

No answer description available for this question.

Question: __________ cycle is the most efficient thermodynamic cycle.
[A].

Diesel

[B].

Otto

[C].

Rankine

[D].

Carnot

Answer: Option D

Explanation:

No answer description available for this question.

Question: X-rays are
[A].

positively charged.

[B].

negatively charged.

[C].

neutral.

[D].

of higher wavelength than visible light.

Answer: Option C

Explanation:

No answer description available for this question.