©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
HVACR Electrical Theory & Application
Exam Questions and Answers 100%
Solved
What is current flow? - ✔✔The flow of electrons in a circuit.
What is impedance? - ✔✔Opposition to alternating current flow.
Any material that will readily release electrons is called - ✔✔a conductor
The symbol for current is - ✔✔I
Electricity can produce - ✔✔Heat, light, magnetism
The safety ground conductor is usually color coded - ✔✔green
an electron - ✔✔has a negative charge
What is resistance? - ✔✔opposition to current flow
What type of meter uses its own battery? - ✔✔Ohmmeter
a black colored wire usually indicates - ✔✔a hot wire
How are fuses sized? - ✔✔by amperage and voltage
What is generally the maximum supply voltage variation? - ✔✔5%
, ©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
When testing a capacitor with an analog ohmmeter, the needle on the
meter should; - ✔✔deflect towards zero then return to an infinite reading
What is the term used to explain the output side of a transformer? -
✔✔secondary side
1 hp = - ✔✔746 watts
In a series circuit, the voltage drop across each resistance will; -
✔✔depend on the value of each resistor
The total resistance of a parallel circuit will be; - ✔✔less than the smallest
resistance
What is true of current flow when it comes to resistance? - ✔✔current flow
will increase when resistance increases
the voltage drop across each resistor will depend on the value of each
resistor - ✔✔in parallel
2.1KV= - ✔✔2100V
100 milliamps= - ✔✔0.1 amps
A capacitor analyzer can; - ✔✔read power factor percentage, diagnose an
open or shorted capacitor, read the microfarad rating of a capacitor
A 240V 3 wire circuit can be split into two 120V circuits - ✔✔True
HVACR Electrical Theory & Application
Exam Questions and Answers 100%
Solved
What is current flow? - ✔✔The flow of electrons in a circuit.
What is impedance? - ✔✔Opposition to alternating current flow.
Any material that will readily release electrons is called - ✔✔a conductor
The symbol for current is - ✔✔I
Electricity can produce - ✔✔Heat, light, magnetism
The safety ground conductor is usually color coded - ✔✔green
an electron - ✔✔has a negative charge
What is resistance? - ✔✔opposition to current flow
What type of meter uses its own battery? - ✔✔Ohmmeter
a black colored wire usually indicates - ✔✔a hot wire
How are fuses sized? - ✔✔by amperage and voltage
What is generally the maximum supply voltage variation? - ✔✔5%
, ©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
When testing a capacitor with an analog ohmmeter, the needle on the
meter should; - ✔✔deflect towards zero then return to an infinite reading
What is the term used to explain the output side of a transformer? -
✔✔secondary side
1 hp = - ✔✔746 watts
In a series circuit, the voltage drop across each resistance will; -
✔✔depend on the value of each resistor
The total resistance of a parallel circuit will be; - ✔✔less than the smallest
resistance
What is true of current flow when it comes to resistance? - ✔✔current flow
will increase when resistance increases
the voltage drop across each resistor will depend on the value of each
resistor - ✔✔in parallel
2.1KV= - ✔✔2100V
100 milliamps= - ✔✔0.1 amps
A capacitor analyzer can; - ✔✔read power factor percentage, diagnose an
open or shorted capacitor, read the microfarad rating of a capacitor
A 240V 3 wire circuit can be split into two 120V circuits - ✔✔True
