CHEMICAL ENGINEERING | Heat Transfer

With increase in temperature, the thermal conductivity of fresh lubricating oil

Byadmin August 25, 2022

Question: With increase in temperature, the thermal conductivity of fresh lubricating oil
[A].

increases

[B].

decreases

[C].

remains unchanged

[D].

may increase or decrease; depends on its composition

Answer: Option B

Explanation:

No answer description available for this question.

Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour into it, is called

Question: A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour into it, is called
[A].

dry air
[B].
moist air
[C].
saturated air
[D].
specific humidity

Answer: Option C

Explanation:

No answer description available for this question.

Read More A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour into it, is called
CHEMICAL ENGINEERING | Fluid Mechanics

Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f1 and that for smooth pipe is f2. Pick out the correct statement.

Question: Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f1 and that for smooth pipe is f2. Pick out the correct statement.
[A].

f1 = f2
[B].
f1 < f2
[C].
f1 > f2
[D].
data not sufficient to relate f1 & f2

Answer: Option C

Explanation:

No answer description available for this question.

Read More Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f1 and that for smooth pipe is f2. Pick out the correct statement.
CHEMICAL ENGINEERING | Fuels and Combustion

Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis.

Question: Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis.
[A].

550
[B].
750
[C].
950
[D].
1150

Answer: Option C

Explanation:

No answer description available for this question.

Read More Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis.
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

Number of phases in a colloidal system are

Question: Number of phases in a colloidal system are
[A].

1
[B].
2
[C].
3
[D].
4

Answer: Option B

Explanation:

No answer description available for this question.

Read More Number of phases in a colloidal system are
CHEMICAL ENGINEERING | Chemical Reaction Engineering

For a __________ order reaction, the units of rate constant and rate of reaction are the same.

Question: For a __________ order reaction, the units of rate constant and rate of reaction are the same.
[A].

zero
[B].
first
[C].
second
[D].
fractional

Answer: Option A

Explanation:

No answer description available for this question.

Read More For a __________ order reaction, the units of rate constant and rate of reaction are the same.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Which of the following parameters is actually measured during tensile testing of a specimen using Universal testing machine?

Question: Which of the following parameters is actually measured during tensile testing of a specimen using Universal testing machine?
[A].

Load & elongation.
[B].
Engineering stress & strain.
[C].
True stress & strain.
[D].
Poisson’s ratio & Young’s modulus.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Which of the following parameters is actually measured during tensile testing of a specimen using Universal testing machine?

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