HVAC EXCELLENCE - ELECTRICITY EXAM 2026 QUESTIONS AND ANSWERS | A+ GRADED |
WITH EXPERT SOLUTIONS
Current flow is: - (ANSWER)The flow of electrons in the circuit.
Impedance is: - (ANSWER)Opposition to alternating current flow.
Like charges; - (ANSWER)repel each other.
Any material that will readily release electrons is called; - (ANSWER)A conductor
The symbol for current is; - (ANSWER)I
Which of the following materials would be best suited for use as a semi-conductor? - (ANSWER)silicon
The safety ground conductor is usually color coded; - (ANSWER)green or bare.
An electron has; - (ANSWER)a negative charge.
Resistance is: - (ANSWER)Opposition to current flow.
How many watts of power are used by a heater operating at 240 volts and drawing 5 amps? -
(ANSWER)1200 watts
Which of the following meters must use its internal power to check a load or circuit? -
(ANSWER)Ohmmeter
In electrical wiring, a black colored wire in an alternating current circuit usually indicates; - (ANSWER)the
hot conductor.
Fuses are sized by: - (ANSWER)Volts & Amps
, HVAC EXCELLENCE - ELECTRICITY EXAM 2026 QUESTIONS AND ANSWERS | A+ GRADED |
WITH EXPERT SOLUTIONS
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? - (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? - (ANSWER)2880 Watts
Which of the following is generally considered to be within the maximum allowable (plus or minus)
supply voltage variation? - (ANSWER)5%
Capacitors are rated in - (ANSWER)Microfarads & Volts.
When testing a capacitor with an analog or digital ohmmeter, the meter should; - (ANSWER)measure
low resistance then return to high reading.
What is the term used to describe the output side of a transformer? - (ANSWER)Secondary side.
One horsepower is equal to __________ watts. - (ANSWER)746
How much resistance must be placed in a 120 volt circuit in order to limit the current to 2 amps? -
(ANSWER)60 Ohms
A parallel circuit contains a 18 ohm and a 9 ohm resistor. The total resistance equals; - (ANSWER)6
ohms.
In a series circuit, the voltage drop across each resistance (load) will. - (ANSWER)add up to equal the
source voltage.
The total resistance of a parallel circuit will be; - (ANSWER)less than the smallest resistance.
WITH EXPERT SOLUTIONS
Current flow is: - (ANSWER)The flow of electrons in the circuit.
Impedance is: - (ANSWER)Opposition to alternating current flow.
Like charges; - (ANSWER)repel each other.
Any material that will readily release electrons is called; - (ANSWER)A conductor
The symbol for current is; - (ANSWER)I
Which of the following materials would be best suited for use as a semi-conductor? - (ANSWER)silicon
The safety ground conductor is usually color coded; - (ANSWER)green or bare.
An electron has; - (ANSWER)a negative charge.
Resistance is: - (ANSWER)Opposition to current flow.
How many watts of power are used by a heater operating at 240 volts and drawing 5 amps? -
(ANSWER)1200 watts
Which of the following meters must use its internal power to check a load or circuit? -
(ANSWER)Ohmmeter
In electrical wiring, a black colored wire in an alternating current circuit usually indicates; - (ANSWER)the
hot conductor.
Fuses are sized by: - (ANSWER)Volts & Amps
, HVAC EXCELLENCE - ELECTRICITY EXAM 2026 QUESTIONS AND ANSWERS | A+ GRADED |
WITH EXPERT SOLUTIONS
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? - (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? - (ANSWER)2880 Watts
Which of the following is generally considered to be within the maximum allowable (plus or minus)
supply voltage variation? - (ANSWER)5%
Capacitors are rated in - (ANSWER)Microfarads & Volts.
When testing a capacitor with an analog or digital ohmmeter, the meter should; - (ANSWER)measure
low resistance then return to high reading.
What is the term used to describe the output side of a transformer? - (ANSWER)Secondary side.
One horsepower is equal to __________ watts. - (ANSWER)746
How much resistance must be placed in a 120 volt circuit in order to limit the current to 2 amps? -
(ANSWER)60 Ohms
A parallel circuit contains a 18 ohm and a 9 ohm resistor. The total resistance equals; - (ANSWER)6
ohms.
In a series circuit, the voltage drop across each resistance (load) will. - (ANSWER)add up to equal the
source voltage.
The total resistance of a parallel circuit will be; - (ANSWER)less than the smallest resistance.
