HVAC electrical Exam Questions and
Answers
List what part (voltage source, switch, or load) is checked with the
following meter function "VOLTAGE" -
correct answer ✅Voltage source, switch and load.
AC electricity flows? -
correct answer ✅Both.....positive to negative and negative to
positive.
When electricity is present, which of the following are also present
-
correct answer ✅Heat and magnetism
What voltage is provided by the electric company to a modern
residential home? -
correct answer ✅220VAC
What are the three lines entering the breaker panel? -
correct answer ✅Line 1 (hot) Line 2 (hot) and netural
What is the difference between AC current and DC current? -
correct answer ✅DC = chemical reaction, travels in one direction
and power is stored.
, HVAC electrical Exam Questions and
Answers
AC = can not be stored, travels in both directions and magnetic
field.
What is the purpose of a breaker? -
correct answer ✅Is a safety device for an electrical circuit.
What voltage does the average home appliance require to operate -
correct answer ✅120V
How does electricity get from one point to another (i.e. from the
electric company to a home)? -
correct answer ✅Through insulated conductors such as copper
wire.
How does the electric company know how much a single residence
has used? -
correct answer ✅Electric meter
Where does electricity come from? -
correct answer ✅Electric company generates and sends to
customer.
Answers
List what part (voltage source, switch, or load) is checked with the
following meter function "VOLTAGE" -
correct answer ✅Voltage source, switch and load.
AC electricity flows? -
correct answer ✅Both.....positive to negative and negative to
positive.
When electricity is present, which of the following are also present
-
correct answer ✅Heat and magnetism
What voltage is provided by the electric company to a modern
residential home? -
correct answer ✅220VAC
What are the three lines entering the breaker panel? -
correct answer ✅Line 1 (hot) Line 2 (hot) and netural
What is the difference between AC current and DC current? -
correct answer ✅DC = chemical reaction, travels in one direction
and power is stored.
, HVAC electrical Exam Questions and
Answers
AC = can not be stored, travels in both directions and magnetic
field.
What is the purpose of a breaker? -
correct answer ✅Is a safety device for an electrical circuit.
What voltage does the average home appliance require to operate -
correct answer ✅120V
How does electricity get from one point to another (i.e. from the
electric company to a home)? -
correct answer ✅Through insulated conductors such as copper
wire.
How does the electric company know how much a single residence
has used? -
correct answer ✅Electric meter
Where does electricity come from? -
correct answer ✅Electric company generates and sends to
customer.
