In a shell and coil condenser, water flows in the shell and the refrigerant in the coil.

Byadmin September 14, 2022

Question: In a shell and coil condenser, water flows in the shell and the refrigerant in the coil.
[A].

True

[B].

False

Answer: Option B

Explanation:

No answer description available for this question.

Engineering Materials | Mechanical Engineering

Micro-structure of a material is, generally, examined by

Question: Micro-structure of a material is, generally, examined by
[A].

naked eye
[B].
optical microscope
[C].
X-ray techniques
[D].
none of these

Answer: Option D

Explanation:

No answer description available for this question.

Read More Micro-structure of a material is, generally, examined by
Engineering Materials | Mechanical Engineering

Manganese is added in low carbon steel to

Question: Manganese is added in low carbon steel to
[A].

make the steel tougher and harder
[B].
raise the yield point
[C].
make the steel ductile and of good bending qualities
[D].
all of the above

Answer: Option C

Explanation:

No answer description available for this question.

Read More Manganese is added in low carbon steel to
Hydraulic Machines | Mechanical Engineering

Discharge of a centrifugal pump is

Question: Discharge of a centrifugal pump is
[A].

directly proportional to diameter of its impeller
[B].
inversely proportional to diameter of its impeller
[C].
directly proportional to (diameter)2 of its impeller
[D].
inversely proportional to (diameter)2 of its impeller

Answer: Option C

Explanation:

Discharge of a centrifugal pump is directly proportional to (Diameter)^2 of its impeller.

Head of a centrifugal pump is directly proportional to (Diameter)^2 of its impeller.

Power Developed of a centrifugal pump is directly proportional to (Diameter)^4 of its impeller.

Read More Discharge of a centrifugal pump is
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

In case ofsensible cooling of air, the coil efficiency is given by

Question: In case ofsensible cooling of air, the coil efficiency is given by
[A].

B.P.F. – 1
[B].
1 – B.P.F.
[C].

[D].
1 + B.P.F.

Answer: Option B

Explanation:

No answer description available for this question.

Read More In case ofsensible cooling of air, the coil efficiency is given by
Hydraulics and Fluid Mechanics | Mechanical Engineering

In an internal mouthpiece, if the jet after contraction expands and fills up the whole mouthpiece, then the mouthpiece is said to be running free.

Question: In an internal mouthpiece, if the jet after contraction expands and fills up the whole mouthpiece, then the mouthpiece is said to be running free.
[A].

True
[B].
False

Answer: Option B

Explanation:

No answer description available for this question.

Read More In an internal mouthpiece, if the jet after contraction expands and fills up the whole mouthpiece, then the mouthpiece is said to be running free.
Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

The axial flow compressor is preferred in air-craft gas turbines because of

Question: The axial flow compressor is preferred in air-craft gas turbines because of
[A].

low frontal area
[B].
higher thrust
[C].
high pressure rise
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More The axial flow compressor is preferred in air-craft gas turbines because of

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