Multiple Choice
Nothing is seen in the sight glass (R-12 system) . Technician A says that the system may be completely empty of refrigerant. Technician B says that the system may be completely charged. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B
Correct Answer:

Verified
Correct Answer:
Verified
Q15: It is 90°F in the shop and
Q16: Technician A says that with a properly
Q17: A customer complains that the heater works
Q18: Technician A says that one heater hose
Q19: If both the low side and the
Q20: Technician A checks ambient temperature as part
Q21: The last step in the diagnostic procedure
Q22: A clogged orifice tube can cause a
Q23: The first step in the diagnostic procedure
Q25: Airflow through a typical HVAC system is