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Core
Type 1
Type 2
Type 3
Must pass all 4 tests for universal certification
Type 1 small appliance
Type 2 high pressure systems
Type 3 low pressure systems
Each section is 25 multiple choice questions
70% to pass test on each of the 4 tests to pass
Opportunity to retest on the section you failed
Refrigeration is the removal of heat energy from one area to another
Vapor compression refrigeration cycle
Compressor is a vapor pump. Refrigeration leaves the compressor in high
Temperature high pressure form through a heat exchanger which returns the vapor to a liquid
Sub cooled refrigerant is in liquid for and is at a temperature below saturation.
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