CHEMICAL ENGINEERING | Chemical Engineering Basics

Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when

Byadmin August 8, 2022

Question: Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when
[A].

strain rate is increased.

[B].

grain size is increased.

[C].

prior cold deformation is increased.

[D].

not affected by any of the above parameters.

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Reaction Engineering

A batch reactor is suitable for

Question: A batch reactor is suitable for
[A].

achieving cent percent conversion of reactants into products.
[B].
large scale gaseous phase reactions.
[C].
liquid phase reactions.
[D].
obtaining uniform polymerisation products in highly exothermic reactions.

Answer: Option C

Explanation:

No answer description available for this question.

Read More A batch reactor is suitable for
CHEMICAL ENGINEERING | Fluid Mechanics

For liquid flow through a packed bed, the superficial velocity as compared to average velocity through the channel in the bed is

Question: For liquid flow through a packed bed, the superficial velocity as compared to average velocity through the channel in the bed is
[A].

more
[B].
less
[C].
equal
[D].
independent of porosity

Answer: Option B

Explanation:

No answer description available for this question.

Read More For liquid flow through a packed bed, the superficial velocity as compared to average velocity through the channel in the bed is
CHEMICAL ENGINEERING | Heat Transfer

In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to __________ the velocity head.

Question: In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to __________ the velocity head.
[A].

twice
[B].
four times
[C].
square root of
[D].
square of

Answer: Option B

Explanation:

No answer description available for this question.

Read More In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to __________ the velocity head.
CHEMICAL ENGINEERING | Heat Transfer

Film boiling is usually not desired in commercial equipments, because

Question: Film boiling is usually not desired in commercial equipments, because
[A].

the heat transfer rate is low in view of the large temperature drop.
[B].
it is difficult to maintain.
[C].
it is not economic.
[D].
none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Film boiling is usually not desired in commercial equipments, because
Chemical Engineering Basics

Name the safety device used to protect the boiler, when the water level falls below a minimum level ?

Name the safety device used to protect the boiler, when the water level falls below a minimum level ?

A. Blow down valve
B. Blow off cock
C. Fusible plug
D. Safety valve

Read More Name the safety device used to protect the boiler, when the water level falls below a minimum level ?
CHEMICAL ENGINEERING | Heat Transfer

For concentrating an aqueous solution of a material like anhydrous Na2SO4, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator.

Question: For concentrating an aqueous solution of a material like anhydrous Na2SO4, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator.
[A].

high pressure
[B].
vacuum
[C].
backward feed
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More For concentrating an aqueous solution of a material like anhydrous Na2SO4, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator.

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