
TROUBLESHOOTING OBJECTIVES 4 AND 5

Quiz
•
Specialty
•
12th Grade
•
Medium
Andgel Thomas
Used 2+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common cause of compressor overheating?
High humidity levels
Improper voltages
Excessive refrigerant charge
Low ambient temperature
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What can lead to a lack of suction gas in a compressor?
Improper insulation
High ambient temperature
Excessive oil return
Refrigerant undercharge
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of air in the refrigeration system?
Higher discharge temperatures
Increased cooling efficiency
Lower power consumption
Reduced compressor wear
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is refrigerant flood-back?
High discharge pressures
Low refrigerant levels
Excessive oil in the system
Liquid refrigerant returning to the compressor
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What can cause mechanical failure in a compressor?
Excessive lubrication
Low discharge temperatures
Metal fatigue
High refrigerant charge
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a symptom of a restricted refrigerant line?
Reduced noise levels
Improved cooling capacity
Increased oil return
Higher than normal pressures
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of installing an accumulator?
To collect liquid refrigerant
To reduce compressor noise
To enhance cooling efficiency
To increase refrigerant flow
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