CHEMICAL ENGINEERING | Chemical Engineering Basics

In the floatation process, pine oil is used as the

Byadmin August 8, 2022

Question: In the floatation process, pine oil is used as the
[A].

collector

[B].

activator

[C].

frother

[D].

depressant

Answer: Option C

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Process

Neon gas is

Question: Neon gas is
[A].

flammable in nature.
[B].
used in color discharge tube.
[C].
filled in lamps having tungsten filament.
[D].
all (a), (b) and (c).

Answer: Option B

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Heat Transfer

h.D/K is called the __________ number.

Question: h.D/K is called the __________ number.
[A].

Nusselt
[B].
Peclet
[C].
Rayleigh
[D].
Grashoff

Answer: Option A

Explanation:

No answer description available for this question.

Read More h.D/K is called the __________ number.
CHEMICAL ENGINEERING | Fuels and Combustion

Calorific value of

Question: Calorific value of
[A].

light paraffinic fuel oils is equal to that of equivalent olefins.
[B].
n-paraffin is lower than that of iso-paraffins of the same compounds.
[C].
light paraffinic fuel oils is higher than that of equivalent olefins.
[D].
light paraffinic fuel oils is lower than that of equivalent olefins.

Answer: Option C

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Heat Transfer

Low thermal conductivity of heat insulating materials is due to its

Question: Low thermal conductivity of heat insulating materials is due to its
[A].

dense structure.
[B].
high proportion of air space.
[C].
high specific heat.
[D].
none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Read More Low thermal conductivity of heat insulating materials is due to its
CHEMICAL ENGINEERING | Furnace Technology

Calcination of limestone to produce lime is done in a __________ kiln.

Question: Calcination of limestone to produce lime is done in a __________ kiln.
[A].

tunnel
[B].
rotary
[C].
vertical shaft
[D].
both (b) and (c)

Answer: Option D

Explanation:

No answer description available for this question.

Read More Calcination of limestone to produce lime is done in a __________ kiln.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Often earing defects are found during deep drawing operation, because the

Question: Often earing defects are found during deep drawing operation, because the
[A].

surface finish of the sheet is poor.
[B].
sheet material has been given substantial spring back.
[C].
starting sheet has planer anisotropy due to its texture.
[D].
starting sheet has normal anitropy due to its texture.

Answer: Option C

Explanation:

No answer description available for this question.

Read More Often earing defects are found during deep drawing operation, because the

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