CHEMICAL ENGINEERING | Heat Transfer

Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube

Byadmin August 23, 2022

Question: Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube
[A].

exit-fluid temperature > wall temperature.

[B].

exit fluid temperature < wall temperature.

[C].

exit fluid temperature = wall temperature.

[D].

Graetz number > 100.

Answer: Option C

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Reaction Engineering

For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor.

Question: For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor.
[A].

stirred tank
[B].
tubular flow
[C].
batch
[D].
fixed bed

Answer: Option A

Explanation:

No answer description available for this question.

Read More For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor.
CHEMICAL ENGINEERING | Chemical Engineering Basics

__________ metal is used as a bearing liner material.

Question: __________ metal is used as a bearing liner material.
[A].

Pewter
[B].
White
[C].
Babbit
[D].
Gun

Answer: Option C

Explanation:

No answer description available for this question.

Read More __________ metal is used as a bearing liner material.
CHEMICAL ENGINEERING | Mass Transfer

With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop

Question: With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop
[A].

decreases
[B].
remains unchanged
[C].
increases
[D].
decreases exponentially

Answer: Option C

Explanation:

No answer description available for this question.

Read More With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop
CHEMICAL ENGINEERING | Chemical Engineering Plant Economics

Out of the following, the depreciation calculated by the __________ method is the maximum.

Question: Out of the following, the depreciation calculated by the __________ method is the maximum.
[A].

diminishing balance
[B].
straight line
[C].
sum of the years digit
[D].
sinking fund

Answer: Option A

Explanation:

No answer description available for this question.

Read More Out of the following, the depreciation calculated by the __________ method is the maximum.
CHEMICAL ENGINEERING | Heat Transfer

Economy of an evaporator is influenced by the

Question: Economy of an evaporator is influenced by the
[A].

steam pressure
[B].
feed temperature
[C].
number of effect
[D].
both(b) & (c)

Answer: Option D

Explanation:

No answer description available for this question.

Read More Economy of an evaporator is influenced by the
CHEMICAL ENGINEERING | Furnace Technology

In a furnace employing forced draught as compared to induced draught,

Question: In a furnace employing forced draught as compared to induced draught,
[A].

air is sucked in, so air leaks are more and hence the furnace efficiency is reduced.
[B].
the fan operates hot and hence blades are liable to corrosion and erosion.
[C].
positive pressure exists in the furnace.
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More In a furnace employing forced draught as compared to induced draught,

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