CHEMICAL ENGINEERING | Materials and Construction

A material is called ‘ductile’, if it can be

Byadmin August 29, 2022

Question: A material is called ‘ductile’, if it can be
[A].

drawn into wires.

[B].

hammered to a thin sheet.

[C].

fractured without deformation.

[D].

made lustrous by heating it.

Answer: Option A

Explanation:

No answer description available for this question.

Materials and Construction

Which has the maximum melting point out of the following ?

Which has the maximum melting point out of the following ?

A. Steel
B. Cast iron
C. Stainless steel
D. Wrought iron

Read More Which has the maximum melting point out of the following ?
CHEMICAL ENGINEERING | Chemical Engineering Basics

For infinite parallel planes having emis-sivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by

Question: For infinite parallel planes having emis-sivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by
[A].

(ε1 + ε2)/ε1.ε2
[B].
ε1.ε2/(ε1 + ε2 – ε1.ε2)
[C].
ε1.ε2
[D].
ε1 + ε2

Answer: Option B

Explanation:

No answer description available for this question.

Read More For infinite parallel planes having emis-sivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by
CHEMICAL ENGINEERING | Polymer Technology

Branched chair polymers as compared to linear polymers have

Question: Branched chair polymers as compared to linear polymers have
[A].

higher melting point.
[B].
higher tensile strength.
[C].
lower density.
[D].
none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Read More Branched chair polymers as compared to linear polymers have
CHEMICAL ENGINEERING | Environmental Engineering

CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones.

Question: CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones.
[A].

102
[B].
105
[C].
109
[D].
1015

Answer: Option B

Explanation:

No answer description available for this question.

Read More CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones.
CHEMICAL ENGINEERING | Chemical Reaction Engineering

A plug-flow reactor is characterised by

Question: A plug-flow reactor is characterised by
[A].

high capacity.
[B].
presence of axial mixing.
[C].
presence of lateral mixing.
[D].
constant composition and temperature of reaction mixture.

Answer: Option C

Explanation:

No answer description available for this question.

Read More A plug-flow reactor is characterised by
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)?

Question: Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)?
[A].

Air cycle
[B].
Carnot cycle
[C].
Ordinary vapour compression cycle
[D].
Vapour compression with a reversible expansion engine

Answer: Option A

Explanation:

No answer description available for this question.

Read More Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)?

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