Lesson E Quiz
Metric Prefixes

Review questions

1. If an antenna is 400 centimeters long, what is its length in meters?

A. 0.0004 meters
B. 4 meters
C. 40 meters
D. 40,000 meters

2. How many hertz are in a kilohertz?

A. 10
B. 100
C. 1000
D. 1,000,000

3. How many kilohertz are in a megahertz?

A. 10
B. 100
C. 1000
D. 1,000,000

4. If a dial marked in kilohertz shows a reading of 7125 kHz, what would it show if it were marked in megahertz?

A. 0.007125 MHz
B. 7.125 MHz
C. 71.25 MHz
D. 7,125,000 MHz

5. If a dial marked in kilohertz shows a reading of 3725 kHz, what would it show if it were marked in hertz?

A. 3.725 Hz
B. 37.25 Hz
C. 3725 Hz
D. 3,725,000 Hz

6. If a dial marked in megahertz shows a reading of 3.525 MHz, what would it show if it were marked in kilohertz?

A. 0.003525 kHz
B. 35.25 kHz
C. 3525 kHz
D. 3,525,000 kHz

7. If your station is transmitting on a frequency of 1.265 GHz, what would the frequency be if it were given in MHz?

A. 12.65 MHz
B. 126.5 MHz
C. 1265 MHz
D. 12,650 MHz

8. 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

9. If a voltmeter marked in volts is used to measure a 3500-millivolt potential, what reading would it show?

A. 0.35 volts
B. 3.5 volts
C. 35 volts
D. 350 volts

10. If you have a hand-held transceiver with an output of 500 milliwatts, how many watts would this be?

A. 0.02
B. 0.5
C. 5
D. 50

11. If you have a hand-held transceiver with an output of 250 milliwatts, how many watts would this be?

A. 0.01
B. 25
C. 0.25
D. 0.125