Cfesa Refrigeration Practice Test New! Direct

A) Open fan relay coil. B) Closed thermostat contacts. C) Binding in the compressor. D) Frozen evaporator.

A refrigeration system using a capillary tube is operating with a suction pressure in a vacuum and a head pressure of 100 psi. When the unit restarts, it pulls back into a vacuum. What is the most likely cause? A. Overcharge of refrigerant B. Defective compressor valves C. Moisture in the system D. Dirty condenser coils The main purpose of a suction line accumulator is to: A. Prevent liquid slugs from entering the compressor B. Store excess liquid refrigerant for heavy loads C. Increase the subcooling of the liquid line D. Act as a filter for the compressor oil cfesa refrigeration practice test

A) To prevent fractionation (changing the blend ratio). B) Because vapor recovery is illegal. C) To save time only. D) To keep the oil in the compressor. A) Open fan relay coil