E01 Electrical Exam ACTUAL
QUESTIONS AND CORRECT ANSWERS
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
Electricity can produce - CORRECT ANSWER Heat, light, & magnetism
Which of the following materials would be best suited for use as a semi-conductor? - CORRECT
ANSWER Silicone
The safety ground conductor is usually color codes; - CORRECT ANSWER Green
An electron has; - CORRECT ANSWER negative charge
Resistance is - CORRECT ANSWER Opposition to current flow
How many watts of power are used by a heater operating at 460 volts and drawing 5 amps? -
CORRECT ANSWER 2300 watts
What type of meter uses its own battery - CORRECT ANSWER Ohmmeter
, In electrical wiring, a black colored wire usually indicates; - CORRECT ANSWER The hot
conductor
Fuses are sized by: - CORRECT ANSWER Volts & Watts
Two 120 volt motors are wired in series, one is a 60 watt motor, and the other is a 4 watt motor. The
result would be; - CORRECT ANSWER Only the 60 watt motor operates normally
Two 120 volts incandescent light bulbs are wired in series, one is a 60 watt bulb, the other is a 4 watt
bulb. The result would be; - CORRECT ANSWER Both bulbs light
What would be the result of three defrost heaters, each 12.5 ohms. Wired in series to a 115 volt power
supply, if the heaters were to supply a 360 watt heating load? - CORRECT ANSWER Heaters
operate normally
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 is generally considered to be the maximum allowable (plus or minus) supply voltage variation?
- CORRECT ANSWER 15%
Capacitors are rated in: - CORRECT ANSWER Microfarads & Volts
When testing a capacitor with an analog or digital ohmmeter, the meter should? - CORRECT
ANSWER Deflect towards zero then return to infinite reading
What is the term used to describe the output side of a transformer? - CORRECT ANSWER
secondary side
One horsepower is equal to how many watts? - CORRECT ANSWER 746
How much resistance must be places in a 110 volt circuit in order to limit the current to 2 amps? -
CORRECT ANSWER 55 ohms
QUESTIONS AND CORRECT ANSWERS
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
Electricity can produce - CORRECT ANSWER Heat, light, & magnetism
Which of the following materials would be best suited for use as a semi-conductor? - CORRECT
ANSWER Silicone
The safety ground conductor is usually color codes; - CORRECT ANSWER Green
An electron has; - CORRECT ANSWER negative charge
Resistance is - CORRECT ANSWER Opposition to current flow
How many watts of power are used by a heater operating at 460 volts and drawing 5 amps? -
CORRECT ANSWER 2300 watts
What type of meter uses its own battery - CORRECT ANSWER Ohmmeter
, In electrical wiring, a black colored wire usually indicates; - CORRECT ANSWER The hot
conductor
Fuses are sized by: - CORRECT ANSWER Volts & Watts
Two 120 volt motors are wired in series, one is a 60 watt motor, and the other is a 4 watt motor. The
result would be; - CORRECT ANSWER Only the 60 watt motor operates normally
Two 120 volts incandescent light bulbs are wired in series, one is a 60 watt bulb, the other is a 4 watt
bulb. The result would be; - CORRECT ANSWER Both bulbs light
What would be the result of three defrost heaters, each 12.5 ohms. Wired in series to a 115 volt power
supply, if the heaters were to supply a 360 watt heating load? - CORRECT ANSWER Heaters
operate normally
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 is generally considered to be the maximum allowable (plus or minus) supply voltage variation?
- CORRECT ANSWER 15%
Capacitors are rated in: - CORRECT ANSWER Microfarads & Volts
When testing a capacitor with an analog or digital ohmmeter, the meter should? - CORRECT
ANSWER Deflect towards zero then return to infinite reading
What is the term used to describe the output side of a transformer? - CORRECT ANSWER
secondary side
One horsepower is equal to how many watts? - CORRECT ANSWER 746
How much resistance must be places in a 110 volt circuit in order to limit the current to 2 amps? -
CORRECT ANSWER 55 ohms
