Free convection flow depends on

Byadmin September 14, 2022

Question: Free convection flow depends on
[A].

density

[B].

coefficient of viscosity

[C].

gravitational force

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Heat Transfer

Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer.

Question: Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer.
[A].

no
[B].
the least
[C].
the largest
[D].
lower

Answer: Option C

Explanation:

No answer description available for this question.

Read More Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer.
Hydraulics and Fluid Mechanics | Mechanical Engineering

A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if

Question: A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if
[A].

length of both the pipes is same
[B].
diameter of both the pipes is same
[C].
loss of head and discharge of both the pipes is same
[D].
loss of head and velocity of flow in both the pipes is same

Answer: Option C

Explanation:

No answer description available for this question.

Read More A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if
Heat Transfer

Temperature of steam at around 540°C can be measured by ____________________?

Temperature of steam at around 540°C can be measured by ____________________?

A. thermometer
B. radiatiouv pyrometer
C. thermistor
D. thermocouple
E. thermopile

Read More Temperature of steam at around 540°C can be measured by ____________________?
CHEMICAL ENGINEERING | Heat Transfer

In a gas-liquid shell and tube heat exchanger, the

Question: In a gas-liquid shell and tube heat exchanger, the
[A].

presence of a non-condensible gas decreases the condensing film co-efficient.
[B].
gases under high pressure are routed through the tube side, because high pressure gases are corrosive in nature.
[C].
gases to be heated/cooled is normally routed through the shell side, because the corrosion caused by the cooling water or steam condensate remain localised to the tubes.
[D].
all ‘a’, ‘b’ & ‘c’

Answer: Option D

Explanation:

No answer description available for this question.

Read More In a gas-liquid shell and tube heat exchanger, the
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

A Bell Coleman refrigerator working on dense air system as compared to open air system, for the same range of temperature, results in __________ power per tonne of refrigeration.

Question: A Bell Coleman refrigerator working on dense air system as compared to open air system, for the same range of temperature, results in __________ power per tonne of refrigeration.
[A].

same
[B].
lower
[C].
higher

Answer: Option B

Explanation:

No answer description available for this question.

Read More A Bell Coleman refrigerator working on dense air system as compared to open air system, for the same range of temperature, results in __________ power per tonne of refrigeration.
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

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