CHEMICAL ENGINEERING | Fluid Mechanics

Centrifugal compressors compared to reciprocating compressors

Byadmin August 13, 2022

Question: Centrifugal compressors compared to reciprocating compressors
[A].

require less space.

[B].

have quieter operation.

[C].

have lower operating costs.

[D].

all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Fluid Mechanics

The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be_________________?

The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be_________________?

A. 0.423 D
B. 0.577 D
C. 0.223 D
D. 0.707 D
where D is the depth of flow

Read More The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be_________________?
CHEMICAL ENGINEERING | Fuels and Combustion

Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis.

Question: Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis.
[A].

500
[B].
750
[C].
950
[D].
1100

Answer: Option B

Explanation:

No answer description available for this question.

Read More Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis.
CHEMICAL ENGINEERING | Fluid Mechanics

Most of the centrifugal pumps used in chemical plants are usually __________ driven.

Question: Most of the centrifugal pumps used in chemical plants are usually __________ driven.
[A].

steam
[B].
diesel engine
[C].
electric motor
[D].
gas turbine

Answer: Option C

Explanation:

No answer description available for this question.

Read More Most of the centrifugal pumps used in chemical plants are usually __________ driven.
CHEMICAL ENGINEERING | Fuels and Combustion

A coal containing very high percentage of durain is called __________ coal.

Question: A coal containing very high percentage of durain is called __________ coal.
[A].

bright
[B].
splint
[C].
non-banded
[D].
boghead

Answer: Option B

Explanation:

No answer description available for this question.

Read More A coal containing very high percentage of durain is called __________ coal.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Wrought iron does not have the

Question: Wrought iron does not have the
[A].

uniform strength in all directions.
[B].
ability to hold protective coating.
[C].
high ductility & corrosion resistance.
[D].
easily weldable characteristics.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Wrought iron does not have the
CHEMICAL ENGINEERING | Chemical Reaction Engineering

An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature.

Question: An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature.
[A].

is always equal to
[B].
is always greater than
[C].
is always less than
[D].
may be greater or less than

Answer: Option B

Explanation:

No answer description available for this question.

Read More An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature.

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