What safety precautions should be taken when transferring refrigerants?

Refrigeration System Charging Quiz 7

Quiz
•
Science
•
10th Grade
•
Hard
AZRI Quizizz
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wear gloves and a mask
Wear a lab coat and safety boots
Wear goggles and PPEs
Wear a helmet and gloves
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of refrigerant changes states to absorb heat from surrounding areas or substances?
CO2
Secondary refrigerants
Primary refrigerants
Ammonia
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the boiling point of R717, a commonly used ammonia refrigerant?
-33 degrees Celsius
-78.5 degrees Celsius
32 degrees Celsius
0 degrees Celsius
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the most common HFC refrigerant used in domestic and auto air conditioning?
R-134a
R-22
R-717
R-12
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method of charging refrigerants is also known as the low side method?
Low pressure method
Vapour charging method
Liquid charging method
High side method
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if a refrigeration system is under-charged?
Compressor may be damaged due to over-heating
High pressure readings on both suction and discharge
Low pressure readings on both suction and discharge
The system may trip on high pressure switch
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the remedy for an under-charged refrigeration system?
Reduce the refrigerant charge
Locate and correct the leak before charging with the correct amount of refrigerant
Add more refrigerant to the system
Add more oil to the system
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