A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be

Byadmin September 14, 2022

Question: A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be
[A].

lack of cooling water

[B].

water temperature being high

[C].

dirty condenser surface

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Engineering Materials | Mechanical Engineering

In process annealing, the hypo-eutectoid steel is

Question: In process annealing, the hypo-eutectoid steel is
[A].

heated from 30° C to 50° C above the upper critical temperature and then cooled in still air
[B].
heated from 30° C to 50° C above the upper critical temperature and then cooled suddenly in a suitable cooling medium
[C].
heated from 30° C to 50° C above the upper critical temperature and then cooled slowly in the furnace
[D].
heated below or close to the lower critical temperature and then cooled slowly

Answer: Option D

Explanation:

No answer description available for this question.

Read More In process annealing, the hypo-eutectoid steel is
Hydraulics and Fluid Mechanics | Mechanical Engineering

For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called

Question: For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called
[A].

continuity equation
[B].
Bernoulli’s equation
[C].
Pascal’s law
[D].
Archimede’s principle

Answer: Option B

Explanation:

No answer description available for this question.

Read More For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called
Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

For minimum work required to compress and deliver a quantity of air by multi-stage compression,

Question: For minimum work required to compress and deliver a quantity of air by multi-stage compression,
[A].

the compression ratio in each stage should be same
[B].
the intercooling should be perfect
[C].
the workdone in each stage should be same
[D].
all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Read More For minimum work required to compress and deliver a quantity of air by multi-stage compression,
Automobile Engineering | Mechanical Engineering

A heat treated glass generally used in automobiles bursts into __________ upon cracking,

Question: A heat treated glass generally used in automobiles bursts into __________ upon cracking,
[A].

sharp edged fragments
[B].
small particles

Answer: Option B

Explanation:

No answer description available for this question.

Read More A heat treated glass generally used in automobiles bursts into __________ upon cracking,
Heat Transfer

Thermal conductivity of solid metals with rise in temperature normally___________________?

Thermal conductivity of solid metals with rise in temperature normally___________________?

A. increases
B. decreases
C. remains constant
D. may increase or decrease depending on temperature
E. unpredictable

Read More Thermal conductivity of solid metals with rise in temperature normally___________________?
Hydraulics and Fluid Mechanics | Mechanical Engineering

A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is

Question: A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is
[A].

3.53 kN
[B].
33.3 kN
[C].
35.3 kN
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is

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