AC Service Quiz

Create an image of a technician working on air conditioning and refrigeration systems, surrounded by various tools, gauges, and components; the setting should be a modern workshop with clear diagrams of refrigerant flow and temperature control elements in the background.

AC Service Expertise Quiz

Test your knowledge on AC service and refrigeration systems with our engaging quiz designed for HVAC professionals and enthusiasts alike. Challenge yourself with ten multiple-choice questions that cover essential principles and applications in HVAC.

Topics include:

Refrigerant Behavior
System Maintenance
Compressor Types
Dehydration Methods
Electrical Components

10 Questions2 MinutesCreated by ServiceTech247

The state of the refrigerant leaving the liquid receiver of the refrigeration system is a ???

High pressure liquid

High pressure gas

Low pressure gas

Low pressure liquid

In order to remove the moisture that enters a refrigeration system during repair, you must evacuate the system by using a ???? To make all the moisture vaporize.

Charging hose

Torch

Vacuum pump

Manometer

What occurs in an evaporator?

Latent heat is released

The refrigerant absorbs the latent heat

Latent heat is condensed

The refrigerant evaporates the latent heat

You can pin-point leaks in a new refrigeration system by charging the system with ???? And using a ????.

Ammonia; leak detector

Nitrogen; soap solution

Halocarbon; vacuum pump

Oxygen; gauge manifold

To check the charge in a refrigeration system, you can look at the ???? In the liquid line. If the charge is low, you will probably see ????.

Metering device; frost

Sight glass; bubbles

Metering device; moisture

Sight glass; no bubbles

In using the deep-vacuum method of dehydrating a refrigerant system, you lower the pressure to about ???? Microns or less. With the vacuum pump turned off, a gradual rise in pressure tells you the system is ????.

1000; dry

1000; not dry

50000; leaking

50000; normal

Voltage is flowing through a 120VAC switch. What will be the measured voltage across the switch if it is closed?

120 VAC

0 VAC

0 Ohms

None of the above

Slugging is the entry of ???? Refrigerant into a compressor. Cavitation is the formation and collapse of ???? In a liquid flowing under pressure.

Gaseous; solid particles

Liquid; solid particles

Gaseous; vapor pockets

Liquid; vapor pockets

What is the purpose of a crankcase heater?

Keep refrigerant out of the oil

Maintain low pressure in the compressor

Maintain high pressure in the compressor

Superheat the refrigerant entering the compressor

AC Service Quiz

AC Service Expertise Quiz

More Quizzes