Asked by Aaliya Sayed on Jun 22, 2024
Verified
Technician A says that both R-12 and R-134a refrigerants are lighter than air when in a gaseous state.Technician B says that using an electronic leak detector is not always the best way of sourcing a leak because its sensitivity can make identifying the location difficult.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
R-134a Refrigerants
A type of hydrofluorocarbon (HFC) refrigerant used in automotive and residential air conditioning systems noted for its low impact on the ozone layer.
Electronic Leak Detector
Handheld devices with a flexible probe used to seek out refrigerant leaks. When a leak is detected, a flashing light or buzzer signals the technician.
- Understand thoroughly the precautionary practices and equipment needed for the repair and maintenance of A/C systems.
- Understand the significance of A/C system maintenance, including leak detection and component replacement.
Verified Answer
JM
jasmine munozJun 23, 2024
Final Answer :
B
Explanation :
Technician B is correct because while electronic leak detectors are highly sensitive and useful for detecting the presence of refrigerant leaks, their high sensitivity can sometimes make it difficult to pinpoint the exact location of a small or slow leak. Technician A is incorrect because R-134a is heavier than air, not lighter.
Learning Objectives
- Understand thoroughly the precautionary practices and equipment needed for the repair and maintenance of A/C systems.
- Understand the significance of A/C system maintenance, including leak detection and component replacement.
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