CHEMICAL ENGINEERING | Chemical Engineering Basics

In radiative heat transfer, a grey surface is the one, which has

Byadmin August 8, 2022

Question: In radiative heat transfer, a grey surface is the one, which has
[A].

emissivity independent of wavelength.

[B].

grey appearance to the eye.

[C].

zero reflectivity.

[D].

equal brightness in all directions.

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Reaction Engineering

In the reversible reaction of the type, A + B AB, in general

Question: In the reversible reaction of the type, A + B AB, in general
[A].

both forward and backward reactions will be exothermic.
[B].
neither of the reactions will be en-dothermic.
[C].
the combination reaction will be exothermic, while the dissociation reaction will be endothermic.
[D].
the combination reaction will be endothermic, while the dissociation reaction will be exothermic.

Answer: Option C

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Mass Transfer

Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of

Question: Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of
[A].

mass diffusivity to momentum diffusivity.
[B].
thermal diffusivity to mass diffusivity.
[C].
momentum diffusivity to thermal diffusivity.
[D].
none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Read More Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of
CHEMICAL ENGINEERING | Chemical Engineering Basics

A pipeline buried in soil is commonly protected from corrosion by

Question: A pipeline buried in soil is commonly protected from corrosion by
[A].

anodic protection.
[B].
cathodic protection.
[C].
using inhibitors.
[D].
using a special alloy resistant to corrosion.

Answer: Option B

Explanation:

No answer description available for this question.

Read More A pipeline buried in soil is commonly protected from corrosion by
CHEMICAL ENGINEERING | Fluid Mechanics

A lubricant 100 times more viscous than water would have a viscosity (in Pa.s)

Question: A lubricant 100 times more viscous than water would have a viscosity (in Pa.s)
[A].

0.01
[B].
0.1
[C].
1
[D].
10

Answer: Option B

Explanation:

No answer description available for this question.

Read More A lubricant 100 times more viscous than water would have a viscosity (in Pa.s)
CHEMICAL ENGINEERING | Chemical Engineering Basics

Buoyancy force depends on the __________ the liquid.

Question: Buoyancy force depends on the __________ the liquid.
[A].

depth of immersion in
[B].
displaced mass of
[C].
surface tension of
[D].
viscosity of

Answer: Option B

Explanation:

No answer description available for this question.

Read More Buoyancy force depends on the __________ the liquid.
Chemical Engineering Basics

Dielectric___________________?

Dielectric___________________?

A. Is an electrical insulating material
B. Of low resistivity is preferred
C. Should have high thermal conductivity
D. Need not defy the corrosive action of chemicals

Read More Dielectric___________________?

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