HVAC Excellence Electricity Exam
Complete Questions And Verified
Answers
\Q\.Current flow is: - ANSWERS✔-The flow of electrons in the circuit.
\Q\.Impedance is: - ANSWERS✔-Opposition to alternating current flow.
\Q\.Like charges; - ANSWERS✔-repel each other.
\Q\.Any material that will readily release electrons is called; - ANSWERS✔-A conductor
\Q\.The symbol for current is; - ANSWERS✔-I
\Q\.Which of the following materials would be best suited for use as a semi-conductor? -
ANSWERS✔-silicon
\Q\.The safety ground conductor is usually color coded; - ANSWERS✔-green or bare.
\Q\.An electron has; - ANSWERS✔-a negative charge.
\Q\.Resistance is: - ANSWERS✔-Opposition to current flow.
, \Q\.How many watts of power are used by a heater operating at 240 volts and drawing 5 amps?
- ANSWERS✔-1200 watts
\Q\.Which of the following meters must use its internal power to check a load or circuit? -
ANSWERS✔-Ohmmeter
\Q\.In electrical wiring, a black colored wire in an alternating current circuit usually indicates; -
ANSWERS✔-the hot conductor.
\Q\.Fuses are sized by: - ANSWERS✔-Volts & Amps
\Q\.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? - ANSWERS✔-Only the control relay would
operate.
\Q\.Three defrost heaters, each 15 ohms are wired in parallel to a 120 volt power supply. How
many watts of power will be used? - ANSWERS✔-2880 Watts
\Q\.Which of the following is generally considered to be within the maximum allowable (plus or
minus) supply voltage variation? - ANSWERS✔-5%
\Q\.Capacitors are rated in - ANSWERS✔-Microfarads & Volts.
\Q\.When testing a capacitor with an analog or digital ohmmeter, the meter should; -
ANSWERS✔-measure low resistance then return to high reading.
\Q\.What is the term used to describe the output side of a transformer? - ANSWERS✔-
Secondary side.
Complete Questions And Verified
Answers
\Q\.Current flow is: - ANSWERS✔-The flow of electrons in the circuit.
\Q\.Impedance is: - ANSWERS✔-Opposition to alternating current flow.
\Q\.Like charges; - ANSWERS✔-repel each other.
\Q\.Any material that will readily release electrons is called; - ANSWERS✔-A conductor
\Q\.The symbol for current is; - ANSWERS✔-I
\Q\.Which of the following materials would be best suited for use as a semi-conductor? -
ANSWERS✔-silicon
\Q\.The safety ground conductor is usually color coded; - ANSWERS✔-green or bare.
\Q\.An electron has; - ANSWERS✔-a negative charge.
\Q\.Resistance is: - ANSWERS✔-Opposition to current flow.
, \Q\.How many watts of power are used by a heater operating at 240 volts and drawing 5 amps?
- ANSWERS✔-1200 watts
\Q\.Which of the following meters must use its internal power to check a load or circuit? -
ANSWERS✔-Ohmmeter
\Q\.In electrical wiring, a black colored wire in an alternating current circuit usually indicates; -
ANSWERS✔-the hot conductor.
\Q\.Fuses are sized by: - ANSWERS✔-Volts & Amps
\Q\.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? - ANSWERS✔-Only the control relay would
operate.
\Q\.Three defrost heaters, each 15 ohms are wired in parallel to a 120 volt power supply. How
many watts of power will be used? - ANSWERS✔-2880 Watts
\Q\.Which of the following is generally considered to be within the maximum allowable (plus or
minus) supply voltage variation? - ANSWERS✔-5%
\Q\.Capacitors are rated in - ANSWERS✔-Microfarads & Volts.
\Q\.When testing a capacitor with an analog or digital ohmmeter, the meter should; -
ANSWERS✔-measure low resistance then return to high reading.
\Q\.What is the term used to describe the output side of a transformer? - ANSWERS✔-
Secondary side.
