HVAC Work Ready Exam - Electrical
Diagram
2026_2027
Expert-Verified Questions and
Answers
(With A+ Grades Guarantee)
, Resistance is? Opposition to current flow
An electron has? A negative charge
Impedance is? Opposition to alternating current flow
Current flow is? Electron flow in a circuit
The safety ground conductor is usually color coded? Green or bare.
Like charges? Repel each other
The symbol for current is? I
Any material that will readily release electrons is called? A conductor
Which of the following materials would be best suited for Silicon
use as a semi-conductor?
How many watts of power are used by a heater operating 1200 watts
at 240 volts and drawing 5 amps?
Three defrost heaters, each 15 ohms are wired in parallel 2880 Watts
to a 120 volt power supply. How many watts of power will
be used?
What would be the result, if a 24 volt, 20-Ohm low voltage Only the control relay would operate.
contactor coil were wired in series with a 24 volt, 200-Ohm
control relay coil?
Fuses are sized by? Volts & Amps
Which of the following is generally considered to be within 5%
the maximum allowable (plus or minus) supply voltage
variation?
Capacitors are rated in? Microfarads & Volts
Diagram
2026_2027
Expert-Verified Questions and
Answers
(With A+ Grades Guarantee)
, Resistance is? Opposition to current flow
An electron has? A negative charge
Impedance is? Opposition to alternating current flow
Current flow is? Electron flow in a circuit
The safety ground conductor is usually color coded? Green or bare.
Like charges? Repel each other
The symbol for current is? I
Any material that will readily release electrons is called? A conductor
Which of the following materials would be best suited for Silicon
use as a semi-conductor?
How many watts of power are used by a heater operating 1200 watts
at 240 volts and drawing 5 amps?
Three defrost heaters, each 15 ohms are wired in parallel 2880 Watts
to a 120 volt power supply. How many watts of power will
be used?
What would be the result, if a 24 volt, 20-Ohm low voltage Only the control relay would operate.
contactor coil were wired in series with a 24 volt, 200-Ohm
control relay coil?
Fuses are sized by? Volts & Amps
Which of the following is generally considered to be within 5%
the maximum allowable (plus or minus) supply voltage
variation?
Capacitors are rated in? Microfarads & Volts
