HVAC Electric Review 2 Exam Questions
And Answers
Resistance is? -
correct answer ✅Opposition to current flow
An electron has? -
correct answer ✅A negative charge
Impedance is? -
correct answer ✅Opposition to alternating current flow
Current flow is? -
correct answer ✅Electron flow in a circuit
The safety ground conductor is usually color coded? -
correct answer ✅Green or bare.
Like charges? -
correct answer ✅Repel each other
The symbol for current is? -
correct answer ✅I
,HVAC Electric Review 2 Exam Questions
And Answers
Any material that will readily release electrons is called? -
correct answer ✅A conductor
Which of the following materials would be best suited for use as a
semi-conductor? -
correct answer ✅Silicon
How many watts of power are used by a heater operating at 240
volts and drawing 5 amps? -
correct answer ✅1200 watts
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
What would be the result, if a 24 volt, 20-ohm low voltage
contractor coil were wired in series with a 24 volt, 200-0hm control
relay coil? -
correct answer ✅Only the control relay would operate.
, HVAC Electric Review 2 Exam Questions
And Answers
Fuses are sized by? -
correct answer ✅Volts & Amps
Which of the following is generally considered to be within the
maximum allowable (plus or
minus) supply voltage variation? -
correct answer ✅5%
Capacitors are rated in? -
correct answer ✅Microfarads & Volts
When testing a capacitor with an analog or digital ohmmeter, the
meter should? -
correct answer ✅Measure low resistance then return to high
reading
In electrical wiring, a black colored wire in an alternating current
circuit usually indicates? -
correct answer ✅The hot conductor
And Answers
Resistance is? -
correct answer ✅Opposition to current flow
An electron has? -
correct answer ✅A negative charge
Impedance is? -
correct answer ✅Opposition to alternating current flow
Current flow is? -
correct answer ✅Electron flow in a circuit
The safety ground conductor is usually color coded? -
correct answer ✅Green or bare.
Like charges? -
correct answer ✅Repel each other
The symbol for current is? -
correct answer ✅I
,HVAC Electric Review 2 Exam Questions
And Answers
Any material that will readily release electrons is called? -
correct answer ✅A conductor
Which of the following materials would be best suited for use as a
semi-conductor? -
correct answer ✅Silicon
How many watts of power are used by a heater operating at 240
volts and drawing 5 amps? -
correct answer ✅1200 watts
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
What would be the result, if a 24 volt, 20-ohm low voltage
contractor coil were wired in series with a 24 volt, 200-0hm control
relay coil? -
correct answer ✅Only the control relay would operate.
, HVAC Electric Review 2 Exam Questions
And Answers
Fuses are sized by? -
correct answer ✅Volts & Amps
Which of the following is generally considered to be within the
maximum allowable (plus or
minus) supply voltage variation? -
correct answer ✅5%
Capacitors are rated in? -
correct answer ✅Microfarads & Volts
When testing a capacitor with an analog or digital ohmmeter, the
meter should? -
correct answer ✅Measure low resistance then return to high
reading
In electrical wiring, a black colored wire in an alternating current
circuit usually indicates? -
correct answer ✅The hot conductor
