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General
Customer Service
Heating
Cooling
Electrical
100
  • What is the correct formula for determining wattage in an electrical circuit?

W = E x I

100

When going on a job interview you should always remember to bring what?

A copy of your resume and references.

100
  • Heat which causes a change is state of a material without a change in temperature is called ___________.

Latent

100

What thermostat wire color is for the cooling function?

Yellow

100

The voltage found in the control circuit is generally how many volts?

24 Volts

200

What is the main function of an Evaporator?

Absorbs heat
200

You're on a service call and need to use the restroom. What do you do?

Ask the customer politely to use the bathroom

200
  • Heat, which causes a change in temperature of a substance, is called ____________.

Sensible

200

The two points of pressure change in a refrigeration cycle are at the _____ and ______.

Compressor and Metering device

200

In what type of circuit would you find more resistance in?

Series Circuit 

300

What is the function of a condenser?

 Rejects heat

300

If it takes you more than 45 minutes troubleshooting a situation on a service call, what should you do?

Call the office and ask them to send out a more experience technician and observe how the technician diagnoses the problem.

300
  • The standard unit for measuring the quantity of heat in a substance is the _______________.
  • British thermal unit (BTU)
300

CFC stands for what?

Chlorofluorocarbon 

300

The black wire is usually referred to as what?

the Hot wire or Hot leg

400

EPA stands for what?

Environmental Protection Agency

400

If you don't have the correct part on your work vehicle to fix a problem, what should you do?

Call your supervisor for instructions.

400

What thermostat wire color is used to function heat?

White

400

ODP stands for what?

Ozone Depletion Potential

400

The two sides of a transformer are called what?

Primary and Secondary

500

The colors found on a recovery cylinders are_____ and _____.

Grey (Body) Yellow (Top)

500

When new equipment is being produced and installed, what should you do?

Ask your supervisor for training

500

For combustion, what are the three elements needed?

Fuel, Spark, and Air

500

Which refrigerant has a installation stop date of December 31, 2025?

R410a

500

What gauge wire is used for thermostats?

18 AWG