CWEA E/I 2 Study Guide UPDATED
ACTUAL Exam Questions and CORRECT
Answers
The relationship between an electric
current and a magnetic field is called:
a. matter.
b. atoms.
c. electromagnetism.
d. element - CORRECT ANSWER c electromagnetism
Electrons flowing from one place to
another make a:
a. current.
b. track.
c. circuit.
d. channel - CORRECT ANSWER a current
Between two objects, the development
of static charges creates a:
a. potential difference.
b. battery.
c. thermocouple.
d. resistance - CORRECT ANSWER a potential difference
A coil of wire that carries an electric
current is called a:
,a. conductor.
b. thermocouple.
c. electrocurrent.
d. electromagnet - CORRECT ANSWER d electromagnet
Metals are good conductors because
they have many:
a. insulators.
b. free electrons.
c. resistors.
d. inductors. - CORRECT ANSWER b free electrons
The amount of potential difference a layer of
insulation can withstand without breaking down is:
a. resistance.
b. voltage drop.
c. dielectric strength.
d. ampacity - CORRECT ANSWER c dielectric strength
What is the property of a coil of wire that opposes any change in the current in the coil?
a. Inductance
b. Resistance
c. Impedance
d. Watts - CORRECT ANSWER a Inductance
What is the correct name for "voltage" or electromotive force?
a. Element
b. Electron
,c. Circuit
d. Potential difference - CORRECT ANSWER d Potential difference
A rate of flow of one coulomb per second
is called one:
a. ampere.
b. joule.
c. volt.
d. olhum. - CORRECT ANSWER a ampere
What is the name for the proportional relationship
between potential difference and current?
a. Voltage drop
b. Voltmeter
c. Ampmeter
d. Watt meter - CORRECT ANSWER b Voltmeter
What is the unit of measurement for capacitive
reactance?
a. Volts
b. Ohms
c. Amps
d. Power factor - CORRECT ANSWER b Ohms
Power companies use AC generators because AC can be sent over long distances:
a. at high cost.
b. at low cost.
c. slower.
, d. faster. - CORRECT ANSWER b at low cost
What device changes alternating current to a
different combination of voltage and current?
a. Generator
b. Capacitor
c. Alternator
d. Transformer - CORRECT ANSWER d Transformer
How does the power going into a transformer
compare to the power coming out?
a. Lower
b. Equal
c. Double
d. Higher - CORRECT ANSWER b Equal
What changes continuously around the conductor
when current changes continuousl in AC circuits?
a. Voltage
b. Current
c. Magnetic field
d. Amps - CORRECT ANSWER c Magnetic field
Wires and cables can be classified according
to their:
a. color.
b. size.
c. covering.
ACTUAL Exam Questions and CORRECT
Answers
The relationship between an electric
current and a magnetic field is called:
a. matter.
b. atoms.
c. electromagnetism.
d. element - CORRECT ANSWER c electromagnetism
Electrons flowing from one place to
another make a:
a. current.
b. track.
c. circuit.
d. channel - CORRECT ANSWER a current
Between two objects, the development
of static charges creates a:
a. potential difference.
b. battery.
c. thermocouple.
d. resistance - CORRECT ANSWER a potential difference
A coil of wire that carries an electric
current is called a:
,a. conductor.
b. thermocouple.
c. electrocurrent.
d. electromagnet - CORRECT ANSWER d electromagnet
Metals are good conductors because
they have many:
a. insulators.
b. free electrons.
c. resistors.
d. inductors. - CORRECT ANSWER b free electrons
The amount of potential difference a layer of
insulation can withstand without breaking down is:
a. resistance.
b. voltage drop.
c. dielectric strength.
d. ampacity - CORRECT ANSWER c dielectric strength
What is the property of a coil of wire that opposes any change in the current in the coil?
a. Inductance
b. Resistance
c. Impedance
d. Watts - CORRECT ANSWER a Inductance
What is the correct name for "voltage" or electromotive force?
a. Element
b. Electron
,c. Circuit
d. Potential difference - CORRECT ANSWER d Potential difference
A rate of flow of one coulomb per second
is called one:
a. ampere.
b. joule.
c. volt.
d. olhum. - CORRECT ANSWER a ampere
What is the name for the proportional relationship
between potential difference and current?
a. Voltage drop
b. Voltmeter
c. Ampmeter
d. Watt meter - CORRECT ANSWER b Voltmeter
What is the unit of measurement for capacitive
reactance?
a. Volts
b. Ohms
c. Amps
d. Power factor - CORRECT ANSWER b Ohms
Power companies use AC generators because AC can be sent over long distances:
a. at high cost.
b. at low cost.
c. slower.
, d. faster. - CORRECT ANSWER b at low cost
What device changes alternating current to a
different combination of voltage and current?
a. Generator
b. Capacitor
c. Alternator
d. Transformer - CORRECT ANSWER d Transformer
How does the power going into a transformer
compare to the power coming out?
a. Lower
b. Equal
c. Double
d. Higher - CORRECT ANSWER b Equal
What changes continuously around the conductor
when current changes continuousl in AC circuits?
a. Voltage
b. Current
c. Magnetic field
d. Amps - CORRECT ANSWER c Magnetic field
Wires and cables can be classified according
to their:
a. color.
b. size.
c. covering.
