CHEMICAL ENGINEERING | Furnace Technology

Maximum heat transfer in high temperature furnaces is by

Byadmin August 23, 2022

Question: Maximum heat transfer in high temperature furnaces is by
[A].

conduction

[B].

convection

[C].

radiation

[D].

either (a), (b) or (c); depends on the type of furnace

Answer: Option C

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Engineering Basics

A simple closed grinding circuit may consist of

Question: A simple closed grinding circuit may consist of
[A].

a ball mill and a classifier.
[B].
a rod mill and a hydrocyclone.
[C].
a jaw crusher and a hydrocyclone.
[D].
a ball mill and a froth floatation cell.

Answer: Option A

Explanation:

No answer description available for this question.

Read More A simple closed grinding circuit may consist of
CHEMICAL ENGINEERING | Fuels and Combustion

A coal with high __________ content, would ignite most easily.

Question: A coal with high __________ content, would ignite most easily.
[A].

fixed carbon
[B].
volatile matter
[C].
ash
[D].
oxygen

Answer: Option B

Explanation:

No answer description available for this question.

Read More A coal with high __________ content, would ignite most easily.
CHEMICAL ENGINEERING | Chemical Reaction Engineering

For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance.

Question: For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance.
[A].

film diffusion
[B].
diffusion through ash layer
[C].
chemical reaction
[D].
either (a), (b) or (c)

Answer: Option B

Explanation:

No answer description available for this question.

Read More For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance.
CHEMICAL ENGINEERING | Chemical Reaction Engineering

__________ is the response curve for a step input signal from a reactor.

Question: __________ is the response curve for a step input signal from a reactor.
[A].

S-curve
[B].
C-curve
[C].
I-curve
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More __________ is the response curve for a step input signal from a reactor.
CHEMICAL ENGINEERING | Fertiliser Technology

Iron is not used alone as a catalyst in ammonia synthesis, because

Question: Iron is not used alone as a catalyst in ammonia synthesis, because
[A].

its activity declines rapidly, if heated to above 520°C.
[B].
it decomposes ammonia.
[C].
it gets oxidised above 500°C.
[D].
none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Iron is not used alone as a catalyst in ammonia synthesis, because
CHEMICAL ENGINEERING

Air-petrol ratio for maximum power generation in spark ignition engine is about_____________________?

Air-petrol ratio for maximum power generation in spark ignition engine is about_____________________?

A. 6 : 1
B. 12 : 1
C. 18 : 1
D. 24 : 1

Read More Air-petrol ratio for maximum power generation in spark ignition engine is about_____________________?

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