CHEMICAL ENGINEERING | Heat Transfer

Nucleate boiling is promoted

Byadmin August 23, 2022

Question: Nucleate boiling is promoted
[A].

on polished surfaces

[B].

on rough surfaces

[C].

in the absence of agitation

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Process

Black liquor is converted into white liquor by

Question: Black liquor is converted into white liquor by
[A].

evaporation and burning the concentrate followed by causticisation of products.
[B].
multi-effect evaporation only.
[C].
selective liquid extraction.
[D].
extractive distillation.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Black liquor is converted into white liquor by
CHEMICAL ENGINEERING | Fluid Mechanics

The capacity of a centrifugal pump Can be increased by increasing the

Question: The capacity of a centrifugal pump Can be increased by increasing the
[A].

impeller diameter or speed.
[B].
number of pumps and joining them in series,
[C].
number of pumps and joining them in parallel.
[D].
all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

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Heat Transfer

Total emissivity of polished silver compared to black body is___________________?

Total emissivity of polished silver compared to black body is___________________?

A. same
B. higher
C. more or less same
D. very much lower
E. very much higher

Read More Total emissivity of polished silver compared to black body is___________________?
CHEMICAL ENGINEERING | Environmental Engineering

Brown spots in fabrics will be caused by washing with water containing large amount of .

Question: Brown spots in fabrics will be caused by washing with water containing large amount of .
[A].

iron
[B].
zinc
[C].
iodine
[D].
bromine

Answer: Option A

Explanation:

No answer description available for this question.

Read More Brown spots in fabrics will be caused by washing with water containing large amount of .
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by(where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.)

Question: At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by(where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.)
[A].

μ° + RT ln f
[B].
μ°+ R lnf
[C].
μ° + T lnf
[D].
μ° + R/T lnf

Answer: Option A

Explanation:

No answer description available for this question.

Read More At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by(where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.)
CHEMICAL ENGINEERING | Chemical Engineering Basics

The best lubricants for a machine working at high temperature & load is

Question: The best lubricants for a machine working at high temperature & load is
[A].

grease
[B].
solid lubricant
[C].
animal oils
[D].
mineral oils

Answer: Option B

Explanation:

No answer description available for this question.

Read More The best lubricants for a machine working at high temperature & load is

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