A hydrostatic tube test kit is used to determine if a tube leaks

Under _______, you must have an equipment room refrigerant monitor when you work with refrigerants

Under _______, you must have an equipment room refrigerant monitor when you work with refrigerants

Refrigerants in large quantities are lighter than air:

The EPA defines a substantial leak as a leak of ______ or more of the normal charge for industrial, process, and commercial refrigeration systems

If the system has a refrigerant sight glass, it shall be typically located just ______ of the expansion device in the liquid line

The standard rupture disc on a negative-pressure CFC-11 or HCFC-123 chiller shatters at _____:

Low-pressure systems require purge units because the low-side of the system operates above atmospheric pressure

Small chillers typically use semi-hermetic centrifugal or screw compressors

In high-ambient conditions, use a recovery unit with a subcooling feature to decrease the rate of recovery