Boma hvac Study Guide Questions with Correct Answers 2026

Boma hvac Study Guide Questions with Correct Answers 2026 What happens when room temperature soda is poured into a glass of ice ? - Correct Answer The ice melts because it is absorbing heat from the soda . The compressor in a refrigeration system - Correct Answer pumps the refrigerant throughout the system To control ice build - up on a heat pump outdoor coil in the heating cycle a ______ is used . - Correct Answer pressure differential switch The total pressure of a confined mixture of gases is the sum of the pressures of each of the gases in the mixture . This is known as - Correct Answer Dalton's Law When moisture is present in a refrigeration system , it will react with the refrigerant and the oil to form_ - Correct Answer acid A direct expansion - type evaporator is also called a - Correct Answer dry-type evaporator Positive displacement compressors have crankcase heat to - Correct Answer prevent refrigerant migration to the compressor If the power element of a TX valve loses its charge the - Correct Answer refrigerant flow to the coil will stop The pressure in a refrigeration system is changed in the - Correct Answer compressor and expansion device Where is cooling produced - Correct Answer In the evaporator