CHEMICAL ENGINEERING | Environmental Engineering

Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels.

Byadmin August 13, 2022

Question: Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels.
[A].

[B].

105

[C].

125

[D].

145

Answer: Option B

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Fluid Mechanics

Working of a __________ pump characterises mixed flow.

Question: Working of a __________ pump characterises mixed flow.
[A].

turbine
[B].
piston
[C].
diaphragm
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More Working of a __________ pump characterises mixed flow.
CHEMICAL ENGINEERING | Fuels and Combustion

As time passes, the calorific value of stored coal

Question: As time passes, the calorific value of stored coal
[A].

decreases
[B].
increases
[C].
remains unaltered
[D].
may increase or decrease (depends on the method of storage).

Answer: Option A

Explanation:

No answer description available for this question.

Read More As time passes, the calorific value of stored coal
CHEMICAL ENGINEERING | Fluid Mechanics

For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the wall of the pipe and the friction velocity ‘v’, and it follows a __________ relationship.

Question: For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the wall of the pipe and the friction velocity ‘v’, and it follows a __________ relationship.
[A].

logarithmic
[B].
linear
[C].
hyperbolic
[D].
parabolic

Answer: Option A

Explanation:

No answer description available for this question.

Read More For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the wall of the pipe and the friction velocity ‘v’, and it follows a __________ relationship.
CHEMICAL ENGINEERING | Fertiliser Technology

Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by

Question: Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by
[A].

adsorption on palladium.
[B].
cryogenic operations (low temperature cooling).
[C].
absorption (using ethanolamine or pyragalloll solution).
[D].
none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Read More Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by
CHEMICAL ENGINEERING | Chemical Engineering Basics

Out of the following, the highest emf for a given temperature is generated by the __________ thermocouple.

Question: Out of the following, the highest emf for a given temperature is generated by the __________ thermocouple.
[A].

chromel – alumel
[B].
iron – constantan
[C].
platinum – platinum + rhodium
[D].
copper-constantan

Answer: Option B

Explanation:

No answer description available for this question.

Read More Out of the following, the highest emf for a given temperature is generated by the __________ thermocouple.
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

Internal energy of an ideal gas

Question: Internal energy of an ideal gas
[A].

increases with increase in pressure.
[B].
decreases with increase in temperature.
[C].
is independent of temperature.
[D].
none of these.

Answer: Option D

Explanation:

No answer description available for this question.

Read More Internal energy of an ideal gas

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