Chemical Engineering Basics

Question: A 2 kg object weighs 1.8 kgf on a spring balance. The value of ‘g’ at that location in m/sec2 is
[A].

8.82

[B].

9.81

[C].

10.88

[D].

0.95

Answer: Option A

Explanation:

No answer description available for this question.

Question: __________ addition increases the depth of hardness of steel.
[A].

Chromium

[B].

Nickel

[C].

Tungsten

[D].

Vanadium

Answer: Option A

Explanation:

No answer description available for this question.

Question: Particle nature of cathode rays is proved due to the fact that they
[A].

travel in a straight line.

[B].

get deflected by magnetic electric field.

[C].

produce fluorescence.

[D].

heat the exposed material.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Free oxygen is removed from boiler feed water, because it
[A].

reduces heat transfer co-efficient.

[B].

is corrosive.

[C].

causes explosion.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Damage to metal surface by mechanical action is called
[A].

pitting

[B].

corrosion

[C].

erosion

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: Out of the following, the dimensionless quantity is
[A].

specific weight

[B].

viscosity

[C].

Mach number

[D].

density

Answer: Option C

Explanation:

No answer description available for this question.

Question: __________ is the most important element, which controls the physical properties of steel.
[A].

Manganese

[B].

Silicon

[C].

Carbon

[D].

Vanadium

Answer: Option C

Explanation:

No answer description available for this question.

Question: Austenite is not
[A].

ductile

[B].

malleable

[C].

magnetic

[D].

soft

Answer: Option C

Explanation:

No answer description available for this question.

Question: For the running of power generating turbines, the steam used should be
[A].

wet

[B].

superheated

[C].

at ordinary pressure

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: Closeness of packing is maximum in case of __________ crystal lattice.
[A].

face centred

[B].

simple cubic

[C].

body centred

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.