HVAC Final Exam Correct Questions & Answers.

a unit is operating with a lower than normal suction pressure the probable cause is - ANSWER a restricted drier heat absorbed by the refrigerant in the evaporator is rejected at the - ANSWER condenser the components that divide the high and low side of the mechanical refrigeration cycle are the - ANSWER compressor discharge valve and metering device what is the purpose of purging the service manifold - ANSWER remove air moisture to transfer refrigerant from a bulky Supply cylinder to a 30 lb capacity reusable cylinder the technician should ___________ the service cylinder - ANSWER warm and infinity reading on the ohmmeter Meter indicates a - ANSWER open circuit the main purpose of the condenser is to - ANSWER change refrigerant Vapor to a liquid a vibration Eliminator would be located in a line near the - ANSWER compressor a device that may open if there is an extremely dirty condenser and the system does not have the proper safety control is the - ANSWER pressure relief valve which statement is true when it pertains to the solenoid valve - ANSWER which of the following is most important to observe when installing a dryer in a system - ANSWER the direction of flow through the dryer - ANSWER the most important step of installing a service manifold on a unit is to - ANSWER Purge the hoses which of the following conditions will not cause a high discharge pressure - ANSWER dirty evaporator how does a sight glass moisture indicator show the presence of moisture in a system - ANSWER changes color which system component will moisture affect first - ANSWER condenser