The average value of thermal conductivity for water at 20° C saturate is about 0.51.

Byadmin September 14, 2022

Question: The average value of thermal conductivity for water at 20° C saturate is about 0.51.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Heat Transfer

Heat transfer rate described by Fourier’s law will decrease, if the __________ increases.

Question: Heat transfer rate described by Fourier’s law will decrease, if the __________ increases.
[A].

thermal conductivity
[B].
thickness
[C].
temperature difference
[D].
heat transfer area

Answer: Option B

Explanation:

No answer description available for this question.

Read More Heat transfer rate described by Fourier’s law will decrease, if the __________ increases.
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

According to Newton’s law of cooling, the heat transfer from a hot body to a cold body is

Question: According to Newton’s law of cooling, the heat transfer from a hot body to a cold body is
[A].

directly proportional to the surface area
[B].
directly proportional to the difference of temperatures between the two bodies
[C].
either (a) or (b)
[D].
both (a) and (b)

Answer: Option D

Explanation:

No answer description available for this question.

Read More According to Newton’s law of cooling, the heat transfer from a hot body to a cold body is
Engineering Materials | Mechanical Engineering

In corrosion resistant properties, bronzes are __________ to brasses.

Question: In corrosion resistant properties, bronzes are __________ to brasses.
[A].

superior
[B].
inferior

Answer: Option A

Explanation:

No answer description available for this question.

Read More In corrosion resistant properties, bronzes are __________ to brasses.
Hydraulics and Fluid Mechanics | Mechanical Engineering

A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because

Question: A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because
[A].

it is easier to see through the glass tube
[B].
glass tube is cheaper than a metallic tube
[C].
it is not possible to conduct this experiment with any other tube
[D].
all of the above

Answer: Option A

Explanation:

No answer description available for this question.

Read More A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because
CHEMICAL ENGINEERING | Heat Transfer

Forced circulation evaporators are normally used for concentrating liquids having

Question: Forced circulation evaporators are normally used for concentrating liquids having
[A].

scaling characteristics
[B].
high viscosity
[C].
both(a) & (b)
[D].
neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

Read More Forced circulation evaporators are normally used for concentrating liquids having
Engineering Materials | Mechanical Engineering

In high speed steels, vanadium adds to the property of red hardness and tungsten and chromium add to high wear resistance.

Question: In high speed steels, vanadium adds to the property of red hardness and tungsten and chromium add to high wear resistance.
[A].

True
[B].
False

Answer: Option A

Explanation:

No answer description available for this question.

Read More In high speed steels, vanadium adds to the property of red hardness and tungsten and chromium add to high wear resistance.

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