CHEMICAL ENGINEERING | Environmental Engineering

Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called

Byadmin August 12, 2022

Question: Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called
[A].

grit

[B].

dust

[C].

powder

[D].

smoke

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Mass Transfer

Flooding results in

Question: Flooding results in
[A].

high tray efficiency
[B].
low tray efficiency
[C].
high gas velocity
[D].
good contact between the fluids

Answer: Option B

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Fluid Mechanics

Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head.

Question: Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head.
[A].

manometric
[B].
total
[C].
static
[D].
friction

Answer: Option A

Explanation:

No answer description available for this question.

Read More Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Electrochemical corrosion occurs

Question: Electrochemical corrosion occurs
[A].

where the liquid electrolytes containing free ions are present.
[B].
only in alloys.
[C].
only in pure metals.
[D].
due to direct chemical action of metal with oxygen.

Answer: Option A

Explanation:

No answer description available for this question.

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Environmental Engineering

The chemical most commonly used to increase speed of sedimentation of sewage is_______________?

The chemical most commonly used to increase speed of sedimentation of sewage is_______________?

A. sulphuric acid
B. copper sulphate
C. lime
D. sodium permanganate

Read More The chemical most commonly used to increase speed of sedimentation of sewage is_______________?
CHEMICAL ENGINEERING | Chemical Engineering Plant Economics

The amount of compounded interest during ‘n’ interest periods is

Question: The amount of compounded interest during ‘n’ interest periods is
[A].

p[(1+i)n-1)]
[B].
p(1 + i)n
[C].
p(1 – i)n
[D].
p(1 + in)

Answer: Option A

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Fuels and Combustion

Calorific value as determined by bomb calorimeter is the

Question: Calorific value as determined by bomb calorimeter is the
[A].

higher calorific value at constant volume.
[B].
gross calorific value at constant pressure.
[C].
lower calorific value at constant pressure.
[D].
net calorific value at constant volume.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Calorific value as determined by bomb calorimeter is the

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