Practice Exam

T2B13

1. What is the purpose of a squelch function?

• A. Reduce a CW transmitter's key clicks
• B. Eliminate parasitic oscillations in an RF amplifier
• C. Mute the receiver audio when a signal is not present
• D. Reduce interference from impulse noise

T3A05

2. When using a directional antenna, how might your station be able to communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?

• A. Change from vertical to horizontal polarization
• B. Try the long path
• C. Increase the antenna SWR
• D. Try to find a path that reflects signals to the repeater

T6A06

3. What type of electrical component stores energy in a magnetic field?

• A. Inductor
• B. Capacitor
• C. Resistor
• D. Diode

T4A06

4. What signals are used in a computer-radio interface for digital mode operation?

• A. Receive audio, transmit audio, and transmitter keying
• B. Receive and transmit mode, status, and location
• C. NMEA GPS location and DC power
• D. Antenna and RF power

T0B02

5. What is required when climbing an antenna tower?

• A. Use appropriate tie-off to the tower at all times
• B. All these choices are correct
• C. Always wear an approved climbing harness
• D. Have sufficient training on safe tower climbing techniques

T8D03

6. What kind of data can be transmitted by APRS?

• A. All these choices are correct
• B. Weather data
• C. Text messages
• D. GPS position data

T5A05

7. A difference in which of the following causes electron flow?

• A. Inductance
• B. Ampere-hours
• C. Voltage
• D. Capacitance

T6C11

8. What is component 4 in figure T-3?

• A. Dummy load
• B. Ground
• C. Antenna
• D. Transmitter

T3C11

9. Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

• A. The atmosphere refracts radio waves slightly
• B. Radio waves are not blocked by dust particles
• C. Radio signals move somewhat faster than the speed of light
• D. Radio waves are blocked by dust particles

T2C01

10. When do the FCC Part 97 Amateur Radio Service rules NOT apply to the operation of an amateur station?

• A. When operating under RACES rules
• B. When operating under ARES rules
• C. FCC rules always apply
• D. When operating under FEMA rules

T1B03

11. Which frequency is in the 6-meter amateur band?

• A. 49.00 MHz
• B. 222.15 MHz
• C. 28.50 MHz
• D. 52.525 MHz

T5C09

12. How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

• A. 23.8 watts
• B. 3.8 watts
• C. 0.7 watts
• D. 138 watts

T6B02

13. What electronic component allows current to flow in only one direction?

• A. Driven element
• B. Resistor
• C. Fuse
• D. Diode

T8A12

14. Which of the following is a disadvantage of FM compared with single sideband?

• A. FM signals are harder to tune
• B. Voice quality is poorer
• C. FM signals are more susceptible to high SWR
• D. Only one signal can be received at a time

T0C03

15. How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?

• A. It increases by a factor of 3
• B. It increases by a factor of 2
• C. There is no adjustment allowed for lower duty cycle
• D. It decreases by 50 percent

T7A02

16. What is a transceiver?

• A. A device for converting receiver and transmitter frequencies to another band
• B. A device that combines a receiver and transmitter
• C. A device for automatically sending and decoding Morse code
• D. A device for matching feed line impedance to 50 ohms

T9B04

17. What is the major function of an antenna tuner (antenna coupler)?

• A. It matches the antenna system impedance to the transceiver's output impedance
• B. It allows an antenna to be used on both transmit and receive
• C. It automatically selects the proper antenna for the frequency band being used
• D. It helps a receiver automatically tune in weak stations

T1D12

18. Which of the following is required when making on-the-air test transmissions?

• A. Identify the transmitting station
• B. Conduct tests only between 10 p.m. and 6 a.m. local time
• C. Notify the FCC of the transmissions
• D. All these choices are correct

T1E07

19. When the control operator is not the station licensee, who is responsible for the proper operation of the station?

• A. The control operator and the station licensee
• B. Only the control operator
• C. All licensed amateurs who are present at the operation
• D. Only the station licensee

T4B05

20. What does the scanning function of an FM transceiver do?

• A. Tunes through a range of frequencies to check for activity
• B. Prevents interference to nearby repeaters
• C. Checks incoming signal deviation
• D. Tunes through a range of frequencies to determine the antenna's resonant frequency

T5B09

21. Which decibel value most closely represents a power increase from 5 watts to 10 watts?

• A. 2 dB
• B. 3 dB
• C. 10 dB
• D. 5 dB

T7D04

22. Which instrument is used to measure electric current?

• A. An electrometer
• B. An ammeter
• C. A voltmeter
• D. An ohmmeter

T8C06

23. How is over the air access to Internet Radio Linking Project (IRLP) nodes accomplished?

• A. By using Dual-Tone Multi-Frequency (DTMF) signals
• B. By obtaining a password that is sent via voice to the node
• C. By entering the proper internet password
• D. By using Continuous Tone-Coded Squelch System (CTCSS) tone codes

T1A06

24. On which of the following HF frequencies can automatically controlled amateur propagation beacons be found?

• A. Anywhere in the Technician portion of 10 meters
• B. Anywhere, if they are registered with the FCC
• C. In a specific portion of each of the HF Technician bands
• D. On ten meters, between 28.200 MHz and 28.300 MHz

T7B08

25. What should you do if something in a neighbor's home is causing harmful interference to your amateur station?

• A. Make sure your station meets the standards of good amateur practice
• B. All these choices are correct
• C. Work with your neighbor to identify the offending device
• D. Politely inform your neighbor that FCC rules prohibit the use of devices that cause interference

T6D04

26. Which of the following displays an electrical quantity as a numeric value?

• A. Potentiometer
• B. Meter
• C. Transistor
• D. Relay

T2A06

27. What is an effective way to seek a call from any phone station when not using a repeater?

• A. Transmit an unmodulated carrier for approximately 10 seconds, followed by "this is" and your call sign, and pause to listen; repeat as necessary
• B. Repeat "CQ" a few times, followed by "this is," and your call sign, then pause to listen; repeat as necessary
• C. Sign your call sign once, followed by the words "listening for a call;" if there is no answer, change the frequency and repeat
• D. Say "QTC," followed by "this is" and your call sign; if there is no answer, change the frequency and repeat

T7C01

28. What is the primary purpose of a dummy load?

• A. To improve the efficiency of an antenna
• B. To prevent transmitting signals over the air when making tests
• C. To prevent over-modulation of a transmitter
• D. To improve the signal-to-noise ratio of a receiver

T1C11

29. If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

• A. Yes, for up to two years
• B. Yes, as soon as you apply for renewal
• C. No, you must wait until the license has been renewed
• D. Yes, for up to one year

T3B11

30. What is the approximate velocity of a radio wave in free space?

• A. 150,000,000 miles per hour
• B. 300,000,000 miles per hour
• C. 300,000,000 meters per second
• D. 150,000,000 meters per second

T9A09

31. What is an advantage of a 5/8-wavelength whip antenna for VHF or UHF mobile service compared to a 1/4-wave antenna?

• A. It has more gain
• B. It has lower SWR
• C. It has lower impedance
• D. It radiates at a higher angle

T0A09

32. What should be done to all external ground rods or earth connections?

• A. Waterproof them with silicone caulk or electrical tape
• B. Tune them for resonance on the lowest frequency of operation
• C. Bond them together with heavy wire or conductive strap
• D. Keep them as far apart as possible

T5D05

33. What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

• A. 13.5 ohms
• B. 0.125 ohms
• C. 8 ohms
• D. 18 ohms

T1F11

34. Which of the following is a requirement for the issuance of a club station license grant?

• A. All these choices are correct
• B. The club must be registered with the American Radio Relay League (ARRL)
• C. The club must have at least four members
• D. The trustee must have an Amateur Extra Class operator license grant

T8B05

35. What is a satellite beacon?

• A. An indicator light that shows where to point your antenna
• B. A reflective surface on the satellite
• C. A transmission from a satellite that contains status information
• D. The primary transmit antenna on the satellite