T5A Metric prefixes, e.g. pico, nano, micro,
milli, centi, kilo,
mega,
giga; concepts, units and measurement of current, voltage;
concept
of conductor and insulator; concept of open and short circuits
T5A01
@N5A03
*Modified
Q,A-D
If a
dial marked in kilohertz shows a reading of 28450 kHz, what would
it show
if it were marked in hertz?
A. 284,500 Hz
B. 28,450,000 Hz
C. 284,500,000 Hz
D. 284,500,000,000 Hz
T5A02
@N5A05
If an
ammeter marked in amperes is used to measure a 3000-milliampere
current,
what reading would it show?
A. 0.003 amperes
B. 0.3 amperes
C. 3 amperes
D. 3,000,000 amperes
T5A03
@N5A09
How
many hertz are in a kilohertz?
A. 10
B. 100
C. 1000
D. 1,000,000
T5A04
@N5B02
What is
the basic unit of electric current?
A. The volt
B. The watt
C. The ampere
D. The ohm
T5A05
@N5B03
Which
instrument would you use to measure electric current?
A. An ohmmeter
B. A wavemeter
C. A voltmeter
D. An ammeter
T5A06
@N5B08
Which
instrument would you use to measure electric potential or
electromotive
force?
A. An ammeter
B. A voltmeter
C. A wavemeter
D. An ohmmeter
T5A07
@N5B05
What is
the basic unit of electromotive force (EMF)?
A. The volt
B. The watt
C. The ampere
D. The ohm
T5A08
@N5B12
What
are three good electrical conductors?
A. Copper, gold, mica
B. Gold, silver, wood
C. Gold, silver, aluminum
D. Copper, aluminum, paper
T5A09
@N5B13
What
are four good electrical insulators?
A. Glass, air, plastic, porcelain
B. Glass, wood, copper, porcelain
C. Paper, glass, air, aluminum
D. Plastic, rubber, wood, carbon
T5A10
@N5C09
Which
electrical circuit can have no current?
A. A closed circuit
B. A short circuit
C. An open circuit
D. A complete circuit
T5A11
@N5C11
Which
electrical circuit draws too much current?
A. An open circuit
B. A dead circuit
C. A closed circuit
D. A short circuit