CWEA ELECTRICAL AND INSTRUMENT GRADE
2 FINAL PAPER COMPLETE QUESTIONS AND
ANSWERS
◉ Metals are good conductors because
they have many:
a. insulators.
b. free electrons.
c. resistors.
d. inductors..
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.
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.
Answer: a Inductance
◉ What is the correct name for "voltage" or electromotive force?
a. Element
b. Electron
c. Circuit
d. Potential difference.
Answer: d Potential difference
◉ A rate of flow of one coulomb per second
is called one:
a. ampere.
b. joule.
c. volt.
d. olhum..
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.
Answer: b Voltmeter
◉ What is the unit of measurement for capacitive
reactance?
a. Volts
b. Ohms
c. Amps
d. Power factor.
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..
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.
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.
Answer: b Equal
◉ What changes continuously around the conductor
when current changes continuousl in AC circuits?
a. Voltage
2 FINAL PAPER COMPLETE QUESTIONS AND
ANSWERS
◉ Metals are good conductors because
they have many:
a. insulators.
b. free electrons.
c. resistors.
d. inductors..
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.
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.
Answer: a Inductance
◉ What is the correct name for "voltage" or electromotive force?
a. Element
b. Electron
c. Circuit
d. Potential difference.
Answer: d Potential difference
◉ A rate of flow of one coulomb per second
is called one:
a. ampere.
b. joule.
c. volt.
d. olhum..
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.
Answer: b Voltmeter
◉ What is the unit of measurement for capacitive
reactance?
a. Volts
b. Ohms
c. Amps
d. Power factor.
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..
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.
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.
Answer: b Equal
◉ What changes continuously around the conductor
when current changes continuousl in AC circuits?
a. Voltage
