What is the main difference between simple air cooling system and simple air evaporative cooling system?

Simple air evaporative cooling system has two evaporators

Simple air evaporative cooling system has an evaporator

Simple air evaporative cooling system has two evaporators

Simple air evaporative cooling system has an extra compressor

Simple air evaporative cooling system has three evaporators

The COP of simple air cooling system is given by?T6 = Inside temperature of cabinT5′ = Exit temperature of cooling turbineT3′ = Temperature at the exit of compressorT2′ = Stagnation temperature

COP = \(\frac{(T_6 + T_{5′})}{(T_3′ – T_{2′})}\)

COP = \(\frac{(T_6 – T_{5′})}{(T_3′ – T_{2′})}\)

COP = \(\frac{(T_6 + T_{5′})}{(T_3′ – T_{2′})}\)

COP = \(\frac{(T_6 + T_{5′})}{(T_3′ + T_{2′})}\)

COP = \(\frac{(T_6 – T_{5′})}{(T_3′ + T_{2′})}\)

Explore topic-wise MCQs in Refrigeration.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Refrigeration knowledge and support exam preparation. Choose a topic below to get started.

1.	A simple evaporative air refrigeration system is used for an airplane to take 20 TR of refrigeration load (Q). The power required for the refrigerating system P is 746 KW. What is its COP?
A.	0.086
B.	0.094
C.	0.079
D.	0.099
Answer» C. 0.079

Discussion

2.	If cooling of 45 minutes or less is required, it may be advantageous to use evaporative cooling system.
A.	True
B.	False
Answer» B. False

Discussion

3.	What is the main difference between simple air cooling system and simple air evaporative cooling system?
A.	Simple air evaporative cooling system has an evaporator
B.	Simple air evaporative cooling system has two evaporators
C.	Simple air evaporative cooling system has an extra compressor
D.	Simple air evaporative cooling system has three evaporators
Answer» B. Simple air evaporative cooling system has two evaporators

Discussion

4.	The simple air cooling system is good for _____ flight speed.
A.	low
B.	high
C.	moderate
D.	any
Answer» B. high

Discussion

5.	The COP of simple air cooling system is given by?T6 = Inside temperature of cabinT5′ = Exit temperature of cooling turbineT3′ = Temperature at the exit of compressorT2′ = Stagnation temperature
A.	COP = \(\frac{(T_6 – T_{5′})}{(T_3′ – T_{2′})}\)
B.	COP = \(\frac{(T_6 + T_{5′})}{(T_3′ – T_{2′})}\)
C.	COP = \(\frac{(T_6 + T_{5′})}{(T_3′ + T_{2′})}\)
D.	COP = \(\frac{(T_6 – T_{5′})}{(T_3′ + T_{2′})}\)
Answer» B. COP = \(\frac{(T_6 + T_{5′})}{(T_3′ – T_{2′})}\)

Discussion

6.	For a simple air cooling system which one of the following is not a process of the cycle in T-S diagram?
A.	Ramming process
B.	Compression process
C.	Heating process
D.	Refrigeration process
Answer» D. Refrigeration process

Discussion

7.	Which one of the following is not a component of a simple air cooling system?
A.	Main compressor
B.	Cooling fan
C.	Heat exchanger
D.	Generator
Answer» E.

Discussion

Explore topic-wise MCQs in Refrigeration.

A simple evaporative air refrigeration system is used for an airplane to take 20 TR of refrigeration load (Q). The power required for the refrigerating system P is 746 KW. What is its COP?

If cooling of 45 minutes or less is required, it may be advantageous to use evaporative cooling system.

What is the main difference between simple air cooling system and simple air evaporative cooling system?

The simple air cooling system is good for _____ flight speed.

The COP of simple air cooling system is given by?T6 = Inside temperature of cabinT5′ = Exit temperature of cooling turbineT3′ = Temperature at the exit of compressorT2′ = Stagnation temperature

For a simple air cooling system which one of the following is not a process of the cycle in T-S diagram?

Which one of the following is not a component of a simple air cooling system?