T5A-2010: Electrical principles; current and voltage, conductors and insulators, alternating and direct current
T5A01:
Electrical current is measured in which of the following units?
Amperes
Volts
Watts
Ohms
T5A02:
Electrical power is measured in which of the following units?
Watts
Volts
Ohms
Amperes
T5A03:
What is the name for the flow of electrons in an electric circuit?
Current
Voltage
Resistance
Capacitance
T5A04:
What is the name for a current that flows only in one direction?
Direct current
Alternating current
Normal current
Smooth current
T5A05:
What is the electrical term for the electromotive force (EMF) that causes electron flow?
Voltage
Ampere-hours
Capacitance
Inductance
T5A06:
How much voltage does a mobile transceiver usually require?
About 12 volts
About 30 volts
About 120 volts
About 240 volts
T5A07:
Which of the following is a good electrical conductor?
Copper
Glass
Wood
Rubber
T5A08:
Which of the following is a good electrical insulator?
Glass
Copper
Aluminum
Mercury
T5A09:
What is the name for a current that reverses direction on a regular basis?
Alternating current
Direct current
Circular current
Vertical current
T5A10:
Which term describes the rate at which electrical energy is used?
Power
Resistance
Current
Voltage
T5A11:
What is the basic unit of electromotive force?
The volt
The watt
The ampere
The ohm
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