In a vapour compression system, the condition of refrigerant before passing through the condenser is

Byadmin September 14, 2022

Question: In a vapour compression system, the condition of refrigerant before passing through the condenser is
[A].

saturated liquid

[B].

wet vapour

[C].

dry saturated vapour

[D].

superheated vapour

Answer: Option D

Explanation:

No answer description available for this question.

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In a petrol engine, the fuel supplied to the engine cylinder is mixed with required quantity of air and the mixture is ignited with a

Question: In a petrol engine, the fuel supplied to the engine cylinder is mixed with required quantity of air and the mixture is ignited with a
[A].

fuel pump
[B].
fuel injector
[C].
spark plug
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

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Which of the following statement is correct relating to rocket engines ?

Question: Which of the following statement is correct relating to rocket engines ?
[A].

The combustion chamber in a rocket engine is directly analogous to the reservoir of a super sonic wind tunnel
[B].
The stagnation conditions exist at the combustion chamber
[C].
The exit velocities of exhaust gases are much higher than those in jet engine
[D].
all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Read More Which of the following statement is correct relating to rocket engines ?
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

A heat exchanger with heat transfer surface area A and overall heat transfer coefficient U handles two fluids of heat capacities Cmax and Cmin. The number of transfer units (NTU) used in the analysis of heat exchanger is specified as

Question: A heat exchanger with heat transfer surface area A and overall heat transfer coefficient U handles two fluids of heat capacities Cmax and Cmin. The number of transfer units (NTU) used in the analysis of heat exchanger is specified as
[A].

[B].

[C].
AU Cmin
[D].

Answer: Option D

Explanation:

No answer description available for this question.

Read More A heat exchanger with heat transfer surface area A and overall heat transfer coefficient U handles two fluids of heat capacities Cmax and Cmin. The number of transfer units (NTU) used in the analysis of heat exchanger is specified as
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The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P_____________________?

The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P_____________________?

A. more
B. less
C. equally.
D. unpredictable
E. none of the above

Read More The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P_____________________?
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In a refrigerating machine, heat rejected is __________ heat absorbed.

Question: In a refrigerating machine, heat rejected is __________ heat absorbed.
[A].

equal to
[B].
less than
[C].
greater than

Answer: Option C

Explanation:

No answer description available for this question.

Read More In a refrigerating machine, heat rejected is __________ heat absorbed.
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A closed tank is completely filled with an oil. If it is made to move with a horizontal acceleration, then the pressure at the back end will be more than that at the front end.

Question: A closed tank is completely filled with an oil. If it is made to move with a horizontal acceleration, then the pressure at the back end will be more than that at the front end.
[A].

Correct
[B].
Incorrect

Answer: Option A

Explanation:

No answer description available for this question.

Read More A closed tank is completely filled with an oil. If it is made to move with a horizontal acceleration, then the pressure at the back end will be more than that at the front end.

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