Engineering Thermodynamics (3131905) MCQs

MCQs of Refrigeration Cycles

Showing 31 to 39 out of 39 Questions
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31.

The ideal refrigeration cycle is like

(a)

Carnot cycle
(b)

Reversed Carnot cycle
(c)

Rankine cycle
(d)

Reversed Rankine cycle
Answer:

Option (b)

32.

The follwing cycle use for air craft refrigeration

(a)

Brayton cycle
(b)

Joule cycle
(c)

Carnot cycle
(d)

Bell colemn cycle
Answer:

Option (d)

33.

In Bell colemn cycle use____________ as a working fluid.

(a)

Air
(b)

CO2
(c)

H2
(d)

N2
Answer:

Option (a)

34.

Bell coleman cycle is a

(a)

Reversed Carnot cycle
(b)

Reversed Otto cycle
(c)

Reversed Joule cycle
(d)

Reversed Rankine cycle
Answer:

Option (c)

35.

Which of the following is the component of Bell-colemn cycle?

(a)

Compressor
(b)

Cooler
(c)

Expander
(d)

All of the above
Answer:

Option (d)

36.

 In Bell-colemn cycle, the heat rejection process occurs at

(a)

constant volume
(b)

constant pressure
(c)

constant temperature
(d)

isentropic
Answer:

Option (b)

37.

The COP of Bell-colemn cycle is 

(a)

increases with decrease in pressure ratio
(b)

increases with increase in pressure ratio
(c)

remains constant with pressure ratio
(d)

does not depend on pressure ratio
Answer:

Option (a)

38.

In Bell-colemn cycle, the compression is assumed to be occurs at

(a)

isothermally
(b)

isentropically
(c)

constant pressure
(d)

none of these
Answer:

Option (b)

39.

The COP of Bell-colemn cycle is given by

(a)

1-1rpγ+1γ-1

(b)

1-1rpγ-1γ-1

(c)

1-1rpγγ-1-1

(d)

1-1rpγγ-1+1

Answer:

Option (b)

Showing 31 to 39 out of 39 Questions
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