CHEMICAL ENGINEERING | Materials and Construction

Nickel and copper are the basic constituents of

Byadmin August 29, 2022

Question: Nickel and copper are the basic constituents of
[A].

hastelloy

[B].

monel metal

[C].

German silver

[D].

inconel

Answer: Option B

Explanation:

No answer description available for this question.

Materials and Construction

Molybdenum steels containing 0.15 to 0.40% molybdenum___________________?

Molybdenum steels containing 0.15 to 0.40% molybdenum___________________?

A. Are prone to temper brittleness
B. Are used for automobile parts like gears, axle, shaft, bearings etc.
C. Have very poor fatigue resistance
D. Do not contain nickel or chromium or both

Read More Molybdenum steels containing 0.15 to 0.40% molybdenum___________________?
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

Heat requirement for decomposition of a compound into its elements is __________ that is evolved during the formation of that compound from its elements.

Question: Heat requirement for decomposition of a compound into its elements is __________ that is evolved during the formation of that compound from its elements.
[A].

the same
[B].
less than
[C].
greater than
[D].
different than

Answer: Option A

Explanation:

No answer description available for this question.

Read More Heat requirement for decomposition of a compound into its elements is __________ that is evolved during the formation of that compound from its elements.
CHEMICAL ENGINEERING | Mass Transfer

JD factor for mass transfer is a function of Reynolds number. Mass transfer by molecular diffusion from a single drop to surrounding still air is given by

Question: JD factor for mass transfer is a function of Reynolds number. Mass transfer by molecular diffusion from a single drop to surrounding still air is given by
[A].

Nsh = 2
[B].
Nst = 2
[C].
Nsc = 2
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More JD factor for mass transfer is a function of Reynolds number. Mass transfer by molecular diffusion from a single drop to surrounding still air is given by
CHEMICAL ENGINEERING | Chemical Reaction Engineering

For the liquid phase zero order irreversible reaction A B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1min-1 . What will be the conversion for a PFR with a space velocity of 0.2 min-1? Assume that all the other operating conditions are the same for CSTR and PFR.

Question: For the liquid phase zero order irreversible reaction A B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1min-1 . What will be the conversion for a PFR with a space velocity of 0.2 min-1? Assume that all the other operating conditions are the same for CSTR and PFR.
[A].

0.15
[B].
0.30
[C].
0.60
[D].
0.90

Answer: Option C

Explanation:

No answer description available for this question.

Read More For the liquid phase zero order irreversible reaction A B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1min-1 . What will be the conversion for a PFR with a space velocity of 0.2 min-1? Assume that all the other operating conditions are the same for CSTR and PFR.
CHEMICAL ENGINEERING | Fuels and Combustion

Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis.

Question: Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis.
[A].

550
[B].
750
[C].
950
[D].
1150

Answer: Option C

Explanation:

No answer description available for this question.

Read More Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis.
CHEMICAL ENGINEERING | Heat Transfer

Fouling factor

Question: Fouling factor
[A].

is a dimensionless quantity.
[B].
does not provide a safety factor for design.
[C].
accounts for additional resistances to heat flow.
[D].
none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Read More Fouling factor

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