Electrical Theory & Application For
HVACR Exam Questions And Answers
100% Pass
What is current flow? - answer✔The flow of electrons in a circuit.
What is impedance? - answer✔Opposition to alternating current flow.
Any material that will readily release electrons is called - answer✔a conductor
The symbol for current is - answer✔I
Electricity can produce - answer✔Heat, light, magnetism
The safety ground conductor is usually color coded - answer✔green
an electron - answer✔has a negative charge
What is resistance? - answer✔opposition to current flow
What type of meter uses its own battery? - answer✔Ohmmeter
a black colored wire usually indicates - answer✔a hot wire
How are fuses sized? - answer✔by amperage and voltage
What is generally the maximum supply voltage variation? - answer✔5%
When testing a capacitor with an analog ohmmeter, the needle on the meter should; -
answer✔deflect towards zero then return to an infinite reading
What is the term used to explain the output side of a transformer? - answer✔secondary side
1 hp = - answer✔746 watts
In a series circuit, the voltage drop across each resistance will; - answer✔depend on the value of
each resistor
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