HVAC Excellence Electricity Exam Most Recent
2025/2026 Complete Questions and Correct
Detailed Answers Already Graded A+|Assured
Success
A transformer has 1000 turns of wire in the primary coil and 2000 turns in the
secondary coil. If 120 volts are applied, the output voltage will be; - CORRECT
ANSWER-240 volts
Which of the following is the symbol for Impedance in an AC circuit? - CORRECT
ANSWER-Z
When current flows in a two wire circuit (such as 120 volts) if a clamp on amp
meter is clamped around both wires. What measurement would you expect? -
CORRECT ANSWER-Zero amps due to cancelation of the two fields.
If the conductor in an AÇ circuit is wound into a coil, the resulting EMF opposes
the supply voltage. This opposition is called. - CORRECT ANSWER-inductive
reactance.
,Current flow is: - CORRECT ANSWER-The flow of electrons in the circuit.
Impedance is: - CORRECT ANSWER-Opposition to alternating current flow.
Like charges; - CORRECT ANSWER-repel each other.
Any material that will readily release electrons is called; - CORRECT ANSWER-A
conductor
The symbol for current is; - CORRECT ANSWER-I
Which of the following materials would be best suited for use as a semi-
conductor? - CORRECT ANSWER-silicon
The safety ground conductor is usually color coded; - CORRECT ANSWER-green
or bare.
An electron has; - CORRECT ANSWER-a negative charge.
Resistance is: - CORRECT ANSWER-Opposition to current flow.
, How many watts of power are used by a heater operating at 240 volts and
drawing 5 amps? - CORRECT ANSWER-1200 watts
Which of the following meters must use its internal power to check a load or
circuit? - CORRECT ANSWER-Ohmmeter
In electrical wiring, a black colored wire in an alternating current circuit usually
indicates; - CORRECT ANSWER-the hot conductor.
Fuses are sized by: - CORRECT ANSWER-Volts & Amps
What would be the result, if a 24 volt, 20-ohm low voltage conta ctor coil were
wired in series with a 24 volt, 200-ohm control relay coil? - CORRECT ANSWER-
Only the control relay would operate.
Three defrost heaters, each 15 ohms are wired in parallel to a 120 volt power
supply. How many watts of power will be used? - CORRECT ANSWER-2880
Watts
2025/2026 Complete Questions and Correct
Detailed Answers Already Graded A+|Assured
Success
A transformer has 1000 turns of wire in the primary coil and 2000 turns in the
secondary coil. If 120 volts are applied, the output voltage will be; - CORRECT
ANSWER-240 volts
Which of the following is the symbol for Impedance in an AC circuit? - CORRECT
ANSWER-Z
When current flows in a two wire circuit (such as 120 volts) if a clamp on amp
meter is clamped around both wires. What measurement would you expect? -
CORRECT ANSWER-Zero amps due to cancelation of the two fields.
If the conductor in an AÇ circuit is wound into a coil, the resulting EMF opposes
the supply voltage. This opposition is called. - CORRECT ANSWER-inductive
reactance.
,Current flow is: - CORRECT ANSWER-The flow of electrons in the circuit.
Impedance is: - CORRECT ANSWER-Opposition to alternating current flow.
Like charges; - CORRECT ANSWER-repel each other.
Any material that will readily release electrons is called; - CORRECT ANSWER-A
conductor
The symbol for current is; - CORRECT ANSWER-I
Which of the following materials would be best suited for use as a semi-
conductor? - CORRECT ANSWER-silicon
The safety ground conductor is usually color coded; - CORRECT ANSWER-green
or bare.
An electron has; - CORRECT ANSWER-a negative charge.
Resistance is: - CORRECT ANSWER-Opposition to current flow.
, How many watts of power are used by a heater operating at 240 volts and
drawing 5 amps? - CORRECT ANSWER-1200 watts
Which of the following meters must use its internal power to check a load or
circuit? - CORRECT ANSWER-Ohmmeter
In electrical wiring, a black colored wire in an alternating current circuit usually
indicates; - CORRECT ANSWER-the hot conductor.
Fuses are sized by: - CORRECT ANSWER-Volts & Amps
What would be the result, if a 24 volt, 20-ohm low voltage conta ctor coil were
wired in series with a 24 volt, 200-ohm control relay coil? - CORRECT ANSWER-
Only the control relay would operate.
Three defrost heaters, each 15 ohms are wired in parallel to a 120 volt power
supply. How many watts of power will be used? - CORRECT ANSWER-2880
Watts
