The C.O.P. of a heat pump working on a reversed Carnot cycle is

Byadmin September 14, 2022

Question: The C.O.P. of a heat pump working on a reversed Carnot cycle is
[A].

[B].

[C].

[D].

Answer: Option D

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Heat Transfer

Heat transfer co-efficient (h1) for liquids increases with

Question: Heat transfer co-efficient (h1) for liquids increases with
[A].

increasing temperature.
[B].
decreasing temperature.
[C].
decreasing Reynolds number.
[D].
none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Heat transfer co-efficient (h1) for liquids increases with
Industrial Engineering And Production Management | Mechanical Engineering

A dummy activity in a net work diagram

Question: A dummy activity in a net work diagram
[A].

is represented by a dotted line
[B].
is an artificial activity
[C].
does not consume time or resources
[D].
all of these

Answer: Option D

Explanation:

No answer description available for this question.

Read More A dummy activity in a net work diagram
Heat Transfer

Thermal conductivity of water in general with rise in temperature ____________________?

Thermal conductivity of water in general with rise in temperature ____________________?

A. increases
B. decreases
C. remains constant
D. may increase or decrease depending on temperature
E. none of the above

Read More Thermal conductivity of water in general with rise in temperature ____________________?
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

Most air cooled condensers are designed to operate with a temperature difference of

Question: Most air cooled condensers are designed to operate with a temperature difference of
[A].

5°C
[B].
8°C
[C].
14°C
[D].
22°C

Answer: Option C

Explanation:

No answer description available for this question.

Read More Most air cooled condensers are designed to operate with a temperature difference of
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

A vapour absorption refrigeration system

Question: A vapour absorption refrigeration system
[A].

gives noisy operation
[B].
gives quiet operation
[C].
requires little power consumption
[D].
cools below 0° C

Answer: Option B

Explanation:

No answer description available for this question.

Read More A vapour absorption refrigeration system
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

In mechanical refrigeration system, the refrigerant occurs as liquid between condenser and expansion valve.

Question: In mechanical refrigeration system, the refrigerant occurs as liquid between condenser and expansion valve.
[A].

True
[B].
False

Answer: Option A

Explanation:

No answer description available for this question.

Read More In mechanical refrigeration system, the refrigerant occurs as liquid between condenser and expansion valve.

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