What is the primary function of a mechanical refrigeration system?

Food Engineering Topic 7

Quiz
•
Science
•
12th Grade
•
Hard
izwan norman
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To increase the temperature of food
To remove heat from a system
To maintain ambient temperature
To freeze food instantly
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component of the refrigeration cycle is responsible for compressing the refrigerant gas?
Compressor
Expansion valve
Evaporator
Condenser
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the term 'refrigeration load' refer to?
The temperature of the refrigerant
The rate of heat removal needed
The amount of refrigerant used
The size of the refrigeration unit
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which law of thermodynamics is relevant to the operation of refrigeration systems?
Zeroth law
First law
Second law
Third law
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the expansion valve in a refrigeration system?
To absorb heat from the environment
To condense the refrigerant
To decrease the pressure of the refrigerant
To increase the pressure of the refrigerant
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which refrigerant is known as Freon 12?
Carbon dioxide
Ammonia
Monochlorodifluoromethane
Dichlorodifluoromethane
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the enthalpy of the refrigerant during the condensation process?
It remains constant
It fluctuates
It decreases
It increases
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