CHEMICAL ENGINEERING | Fluid Mechanics

Erosion and pits formation on the impeller of a centrifugal pump may be due to

Byadmin August 13, 2022

Question: Erosion and pits formation on the impeller of a centrifugal pump may be due to
[A].

cavitation.

[B].

low speed of impeller.

[C].

its operation with delivery valve closed for considerable time after starting the pump.

[D].

off centering of pump with motor.

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Fertiliser Technology

Out of the following, N2 content is minimum in

Question: Out of the following, N2 content is minimum in
[A].

urea
[B].
ammonium nitrate
[C].
ammonium sulphate
[D].
ammonium chloride

Answer: Option C

Explanation:

No answer description available for this question.

Read More Out of the following, N2 content is minimum in
CHEMICAL ENGINEERING | Chemical Process

Kaoline is a/an

Question: Kaoline is a/an
[A].

refractory material
[B].
synthetic resin
[C].
artificial abrasive
[D].
blue pigment

Answer: Option A

Explanation:

No answer description available for this question.

Read More Kaoline is a/an
CHEMICAL ENGINEERING | Chemical Engineering Plant Economics

A balance sheet for an industrial concern shows

Question: A balance sheet for an industrial concern shows
[A].

the financial condition at any given time.
[B].
only current assets.
[C].
only fixed assets.
[D].
only current and fixed assets.

Answer: Option A

Explanation:

No answer description available for this question.

Read More A balance sheet for an industrial concern shows
CHEMICAL ENGINEERING | Chemical Reaction Engineering

Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

Question: Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.
[A].

proportional to
[B].
independent of
[C].
inversely proportional to
[D].
proportional to the square of

Answer: Option A

Explanation:

No answer description available for this question.

Read More Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.
Fluid Mechanics

Two pipe systems are said to be equivalent when_________________?

Two pipe systems are said to be equivalent when_________________?

A. head loss and discharge are same in two systems
B. length of pipe and discharge are same in two systems
C. friction factor and length are same in two systems
D. length and diameter are same in two systems

Read More Two pipe systems are said to be equivalent when_________________?
CHEMICAL ENGINEERING | Mass Transfer

In gas-liquid contact operation, the number of ideal stages, . This is true when the stripping factor ‘S’ is

Question: In gas-liquid contact operation, the number of ideal stages, . This is true when the stripping factor ‘S’ is
[A].

S > 1
[B].
S < 1
[C].
S = 1
[D].
S = ∞

Answer: Option A

Explanation:

No answer description available for this question.

Read More In gas-liquid contact operation, the number of ideal stages, . This is true when the stripping factor ‘S’ is

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