# Metric Prefixes

## Review questions

N5A04 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

N5A09 How many hertz are in a kilohertz?

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

N5A10 How many kilohertz are in a megahertz?

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

N5A01 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

N5A03 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

N5A02 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

N5A13 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

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

N5A06 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

N5A11 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

N5A12 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