Chemical Engineering Basics

Question: Which of the following parameters is actually measured during tensile testing of a specimen using Universal testing machine?
[A].

Load & elongation.

[B].

Engineering stress & strain.

[C].

True stress & strain.

[D].

Poisson’s ratio & Young’s modulus.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Brazing is the joining of metals
[A].

without melting the base metal.

[B].

with a non-ferrous filler.

[C].

both (a) & (b).

[D].

neither (a) nor (b).

Answer: Option C

Explanation:

No answer description available for this question.

Question: Fatigue strength of a metal is improved by
[A].

overstressing.

[B].

scratching the surface.

[C].

raising the temperature.

[D].

understressing.

Answer: Option D

Explanation:

No answer description available for this question.

Question: An atom bomb works on the principle of
[A].

nuclear fission

[B].

nuclear fusion

[C].

both the nuclear fission & fusion

[D].

ionisation

Answer: Option A

Explanation:

No answer description available for this question.

Question: Work study deals with the __________ study.
[A].

time

[B].

motion

[C].

both (a) & (b)

[D].

neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

Question: Minimum number of members required to form a Public Limited Joint Stock Com-pany is
[A].

7

[B].

10

[C].

12

[D].

17

Answer: Option A

Explanation:

No answer description available for this question.

Question: Moist climate is the most favourable factor in the site selection far a
[A].

steel plant

[B].

textile factory

[C].

petroleum refinery

[D].

coke oven battery

Answer: Option B

Explanation:

No answer description available for this question.

Question: ‘Cryogenics’ is concerned with the generation & use of low temperature in the range of
[A].

0°K to 123°K

[B].

0°C to – 123°C

[C].

0°C to – 273°C

[D].

0°K to 273°K

Answer: Option A

Explanation:

No answer description available for this question.

Question: Percentage of argon (by volume) in dry atmospheric air is about
[A].

0.09

[B].

0.3

[C].

0.57

[D].

0.94

Answer: Option D

Explanation:

No answer description available for this question.

Question: Insulation of liquid surface can be achieved by __________ on top of its surface.
[A].

floating hollow polypropylene spheres

[B].

spraying alumina powder

[C].

putting cement

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.