PACKAGE AIR CONDITIONER - Practice Mode

1) Which switch is interlocked to become on if the power isolator is off in package AC?

Thermostat Blower motor Crankcase heater Compressor starting

Correct Answer: Crankcase heater

2) Which valve is opened first after installing the package AC for test run?

Ball valve Globe valve Service valve Solenoid valve

Correct Answer: Globe valve

3) What is measured by clamp tester during 'Test run' of package AC?

Idle pressure Running current Rotation per minute Vacuum holding strength

Correct Answer: Running current

4) What is the purpose of TEV in refrigeration cycle of package AC?

Condensing gas Throttling refrigerant Flush out dry nitrogen Cooling the evaporator

Correct Answer: Throttling refrigerant

5) Which safety control is actuated by excess of heat /current in package AC?

Selector switch Over load relay Water flow switch High pressure cut-out

Correct Answer: Over load relay

Previous Question Set Back to Question Sets Next Question Set

Try Another Topic

Try Another Quiz