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Test Bank For Electricity for HVACR 1st Edition All Chapters - 9780133143577
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,TestBank For Electricity for HVACR 1st EditionChapter 1
1. Match the circuit type in Column 1 to its definition in Column 2:
2. Match the circuit type in Column 1 to its definition in Column 2:
1
,TestBank For Electricity for HVACR 1st Edition
Chapter 1
1. What is electricity?
a. Neutrons flowing in a wire and load
b. Static charge that causes something to operate
c. Flow of electrons between atoms in common wire material or
load
d. All of the above
2. What is current flow?
a. Electrons flow
b. Electricity flow
c. Movement of protons
d. Flow of copper molecules in a copper wire
3. What creates a magnetic field in a conductor?
a. Resistance to current flow
b. Voltage flow
c. Current flow
d. A strong magnet
4. What is voltage?
a. Electrical pressure that pushes current flow
b. Current pressure that pushes voltage
c. Proton flow that causes pressure
d. None of the above
5. What is the difference between a conductor and an insulator?
a. A conductor restricts current flow.
b. A conductor allows current flow.
c. An insulator enhances current flow.
d. They are the same.
6. What are the two common types of electricity?
a. Single-phase and two-phase
b. Two-phase and three-phase
c. Direct current and alternating current
d. AC and alternating current
7. What is control voltage?
2
, TestBank For Electricity for HVACR 1st Edition
Chapter 1
a. The electrical section of the HVACR system that manages the on
and off cycles
b. Voltage that is 120 volts or higher
c. Voltage that is 240 volts or higher
d. Voltage that is 120 volts and lower
8. What is resistance?
a. Resistance speeds up current flow.
b. Resistance only reduces voltage.
c. Resistance increases voltage pressure.
d. Resistance is the force that slows down the flow of electrons
in a circuit.
9. What is a watt?
a. The rate of doing work or power
b. Rating of light output
c. Measurement of lumens
d. Rating of light output and measurement of lumens
10. What is a meant by a load?
a. It is an item that in measured in tons for air conditioning
cooling.
b. Any component that has a resistance to electron or current
flow
c. The conductance created by a conductor
d. How well a component allows electron flow
3
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