Cascade Refrigeration MCQs : This section focuses on the "Cascade Refrigeration" in Refrigeration and Air Conditioning. These Multiple Choice Questions (MCQs) should be practiced to improve the Refrigeration and Air Conditioning skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
A cascade refrigeration cycle is a multi-stage thermodynamic cycle.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
Question 2
In a cascade refrigeration system, ____________ vapor-compression cycles with different refrigerants are used.
A. one
B. two
C. one or more
D. two or more
Question 3
Which temperature system transfers heat to a conventional condenser?
A. low
B. high
C. medium
D. None of the above
Question 4
___________ may be separated by being sealed in separated loops.
A. Auto cascade
B. Cryogenic cycles
C. Cascade cycles
D. None of the above
Question 5
Why is the cascade system used?
A. To attain low C.O.P.
B. To decrease the refrigeration effect
C. To increase leakage loss
D. To produce low temperatures
Question 6
How is the cascade system achieved?
A. VCR system in a parallel combination
B. VCR system in a series combination
C. VAR system in a series combination
D. VAR system in a parallel combination
Question 7
What is Cryogenics?
A. C.O.P. reduction
B. Work enhancement
C. Low-temperature refrigeration
D. High-temperature refrigeration
Question 8
Multiple refrigerants can be used in the cascade refrigeration system.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
Question 9
What is the principal advantage of the cascade system?
A. Increase of work done
B. Decrease the refrigeration effect
C. Use of only one refrigerant
D. Use of multiple refrigerants
Question 10
The low temperature system removes heat from the space to be cooled using an evaporator.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say