Properties of Matter
Heat
Electricity
Troubleshooting
Refrigeration
100

When this decreases, pressure and temperature increase

What is volume?

100

Heat that cause a change in temperature is called

What is sensible heat

100

Lightning is a form of this

What is static electricity?

100

If voltage is read across a fuse what does this indicate

The fuse is blown

100

This apparatus removes air, moisture, and other non-condensable gases from a system

What is a vacuum pump?

200

DAILY DOUBLE

What is a fluid

200

This refers to the measure of heat intensity

What is temperature?

200

This device protects a circuit from overload and/or short circuit?

What is a circuit breaker?

200

How could a technician determine if a solenoid valve coil is defective?

Disconnect and ohm it out for resistance

200

This is the process of removing refrigerant from a system and storing it in an approved cylinder

What is recovery?

300

This term refers to the weight of a one square inch

column of air on the Earth

What is atmospheric pressure

300

This refers to the amount of heat required to raise the temperature of 1 pound of a water 1 degree Fahrenheit

What is 1 BTU?

300

The flow of current in one direction at a continuous rate

What is direct current?

300

A hermetic compressor in a window A/C when energized does not start. Before determining that the compressor motor is bad, what should a technician check first?

What is the run capacitor?

300

The separating of zeotropic blends into its individual refrigerants during phase change is known as 

What is fractionation?

400

This refers to anything that must be sealed in its container to prevent its escape into the atmosphere

What is a gas

400

This process involves:

heating, cooling, humidification, dehumidification, and air cleaning


What is air conditioning?

400

The push behind current is defined as

What is voltage?

400

Switches should be checked for

What is continuity?

400

DAILY DOUBLE

What are backseated, cracked, midseated, and frontseated?

500

This process is the changing of a substance from a vapor to a liquid

What is condensation

500

Exactly how much heat does it take to change 1 pound of water at 32 degrees to ice at 32 degrees?

What is 144 BTU?

500

Your local utility company charges its customers (you) by this

What is the kilowatt-hour?

500

You are on a service call, and the customer complains that she has no air. You go to the thermostat, and set the unit for cool, and the circuit breaker trips immediately. What is the first thing that you should check?

What is ohm out the compressor?(It is probably grounded)

500

In what year did Willis Carrier patent A/C and what was it first called

1908 / Apparatus for treating air

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