For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally

Byadmin August 25, 2022

Question: For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally
[A].

decreases

[B].

increases

[C].

remains unchanged

[D].

increases exponentially

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

At __________ point, all the three phases (i.e.solid, liquid and gas) co-exist.

Question: At __________ point, all the three phases (i.e.solid, liquid and gas) co-exist.
[A].

eutcetic
[B].
triple
[C].
plait
[D].
critical

Answer: Option B

Explanation:

No answer description available for this question.

Read More At __________ point, all the three phases (i.e.solid, liquid and gas) co-exist.
CHEMICAL ENGINEERING | Fluid Mechanics

Check valve provided in the discharge line of a centrifugal pump serves the purpose of controlling the

Question: Check valve provided in the discharge line of a centrifugal pump serves the purpose of controlling the
[A].

back flow of fluid in the event of stoppage of pump.
[B].
discharge pressure.
[C].
flow of liquid during operation of the pump.
[D].
all (a), (b) and (c).

Answer: Option A

Explanation:

No answer description available for this question.

Read More Check valve provided in the discharge line of a centrifugal pump serves the purpose of controlling the
CHEMICAL ENGINEERING | Fuels and Combustion

__________ of the coal is the basis for Seylor’s coal classification.

Question: __________ of the coal is the basis for Seylor’s coal classification.
[A].

Proximate analysis
[B].
Ultimate analysis
[C].
Caking index
[D].
Calorific value

Answer: Option B

Explanation:

No answer description available for this question.

Read More __________ of the coal is the basis for Seylor’s coal classification.
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

In electrolux refrigerator

Question: In electrolux refrigerator
[A].

ammonia is absorbed in hydrogen
[B].
ammonia is absorbed in water
[C].
ammonia evaporates in hydrogen
[D].
hydrogen evaporates in ammonia

Answer: Option C

Explanation:

No answer description available for this question.

Read More In electrolux refrigerator
CHEMICAL ENGINEERING | Fuels and Combustion

Number of macrocomponents present in coal according to Stopes are

Question: Number of macrocomponents present in coal according to Stopes are
[A].

four
[B].
five
[C].
six
[D].
two

Answer: Option A

Explanation:

No answer description available for this question.

Read More Number of macrocomponents present in coal according to Stopes are
CHEMICAL ENGINEERING | Heat Transfer

For a laminar flow of fluid in a circular tube, ‘h1’ is the convective heat transfer co-efficient at velocity ‘V1’. If the velocity is reduced by half and assuming the fluid properties are constant, the new convective heat transfer co-efficient is

Question: For a laminar flow of fluid in a circular tube, ‘h1’ is the convective heat transfer co-efficient at velocity ‘V1’. If the velocity is reduced by half and assuming the fluid properties are constant, the new convective heat transfer co-efficient is
[A].

1.26 h1
[B].
0.794 h1
[C].
0.574 h1
[D].
1.741 h1

Answer: Option B

Explanation:

No answer description available for this question.

Read More For a laminar flow of fluid in a circular tube, ‘h1’ is the convective heat transfer co-efficient at velocity ‘V1’. If the velocity is reduced by half and assuming the fluid properties are constant, the new convective heat transfer co-efficient is

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