Practice Exam

T9B04

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

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

T0C11

2. What is the definition of duty cycle during the averaging time for RF exposure?

• A. The percentage of time that a transmitter is transmitting
• B. The percentage of time that a transmitter is not transmitting
• C. The difference between the PEP and average power output of a transmitter
• D. The difference between the lowest power output and the highest power output of a transmitter

T4B08

3. What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

• A. Increases the amount of offset between receive and transmit frequencies
• B. Permits monitoring several modes at once
• C. Increases the number of frequencies that can be stored in memory
• D. Permits noise or interference reduction by selecting a bandwidth matching the mode

T8A07

4. What is an advantage of single sideband (SSB) over FM for voice transmissions?

• A. All of these choices are correct
• B. SSB signals have narrower bandwidth
• C. SSB signals are less susceptible to interference
• D. SSB signals are easier to tune

T0A03

5. In the United States, what is connected to the green wire in a threewire electrical AC plug?

• A. Equipment ground
• B. Neutral
• C. The white wire
• D. Hot

T7B10

6. What might be a problem if you receive a report that your audio signal through the repeater is distorted or unintelligible?

• A. You are in a bad location
• B. Your transmitter is slightly off frequency
• C. Your batteries are running low
• D. All of these choices are correct

T8B03

7. Which of the following are provided by satellite tracking programs?

• A. Maps showing the real-time position of the satellite track over the earth
• B. All of these choices are correct
• C. The time, azimuth, and elevation of the start, maximum altitude, and end of a pass
• D. The apparent frequency of the satellite transmission, including effects of Doppler shift

T9A09

8. What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

• A. 50
• B. 112
• C. 6
• D. 236

T0B08

9. What is considered to be a proper grounding method for a tower?

• A. A single four-foot ground rod, driven into the ground no more than 12 inches from the base
• B. Separate eight-foot long ground rods for each tower leg, bonded to the tower and each other
• C. A connection between the tower base and a cold water pipe
• D. A ferrite-core RF choke connected between the tower and ground

T7A10

10. What device increases the low-power output from a handheld transceiver?

• A. An impedance network
• B. All of these choices are correct
• C. A voltage divider
• D. An RF power amplifier

T1B01

11. What is the International Telecommunications Union (ITU)?

• A. An independent frequency coordination agency
• B. A department of the FCC
• C. An agency of the United States Department of Telecommunications Management
• D. A United Nations agency for information and communication technology issues

T5D07

12. What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

• A. 9600 amperes
• B. 200 amperes
• C. 1.5 amperes
• D. 0.667 amperes

T6D10

13. What is the function of component 2 in Figure T1?

• A. Give off light when current flows through it
• B. Convert electrical energy into radio waves
• C. Control the flow of current
• D. Supply electrical energy

T1F11

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

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

T2A11

15. What term describes an amateur station that is transmitting and receiving on the same frequency?

• A. Simplex
• B. Full duplex
• C. Multiplex
• D. Diplex

T1A03

16. What are the FCC rules regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

• A. It is required when in contact with foreign stations
• B. It is required when transmitting emergency messages
• C. It is prohibited
• D. It is encouraged

T8D09

17. What code is used when sending CW in the amateur bands?

• A. International Morse
• B. All of these choices are correct
• C. Baudot
• D. Hamming

T1E05

18. What is an amateur station control point?

• A. The location at which the control operator function is performed
• B. The location of the station's transmitting antenna
• C. The mailing address of the station licensee
• D. The location of the station transmitting apparatus

T6B05

19. Which of the following electronic components can amplify signals?

• A. Variable resistor
• B. Transistor
• C. Multi-cell battery
• D. Electrolytic capacitor

T5A14

20. In which type of circuit is voltage the same across all components?

• A. Parallel
• B. Series
• C. Resonant
• D. Branch

T3B10

21. What frequency range is referred to as HF?

• A. 30 to 300 MHz
• B. 300 to 3000 kHz
• C. 300 to 3000 MHz
• D. 3 to 30 MHz

T3A07

22. What type of wave carries radio signals between transmitting and receiving stations?

• A. Electrostatic
• B. Ferromagnetic
• C. Electromagnetic
• D. Surface acoustic

T6C13

23. Which of the following is accurately represented in electrical schematics?

• A. The way components are interconnected
• B. Physical appearance of components
• C. All of these choices are correct
• D. Wire lengths

T7D05

24. What instrument is used to measure resistance?

• A. A noise bridge
• B. An ohmmeter
• C. A spectrum analyzer
• D. An oscilloscope

T6A04

25. What electrical component stores energy in an electric field?

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

T5C01

26. What is the ability to store energy in an electric field called?

• A. Tolerance
• B. Inductance
• C. Resistance
• D. Capacitance

T2C04

27. What do RACES and ARES have in common?

• A. Neither may handle emergency traffic supporting public service agencies
• B. Both organizations may provide communications during emergencies
• C. They represent the two largest ham clubs in the United States
• D. Both organizations broadcast road and weather information

T2B09

28. What is a "talk group" on a DMR digital repeater?

• A. A way for groups of users to share a channel at different times without being heard by other users on the channel
• B. A group of operators sharing common interests
• C. A net that meets at a particular time
• D. A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together

T4A03

29. Why should wiring between the power source and radio be heavy-gauge wire and kept as short as possible?

• A. To provide a good counterpoise for the antenna
• B. To avoid voltage falling below that needed for proper operation
• C. To avoid RF interference
• D. All of these choices are correct

T3C11

30. Why do VHF and UHF radio signals usually travel somewhat farther than the visual line of sight distance between two stations?

• A. Radio waves are blocked by dust particles
• B. Radio waves are not blocked by dust particles
• C. Radio signals move somewhat faster than the speed of light
• D. The Earth seems less curved to radio waves than to light

T1D01

31. With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

• A. Any country in violation of the War Powers Act of 1934
• B. Any country whose administration has notified the International Telecommunications Union (ITU) that it objects to such communications
• C. Any country engaged in hostilities with another country
• D. Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications

T1C08

32. What is the normal term for an FCC-issued primary station/operator amateur radio license grant?

• A. Ten years
• B. Five years
• C. Life
• D. Twenty years

T7C04

33. What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

• A. 2 to 1
• B. 1 to 1
• C. 10 to 1
• D. 1 to 3

T8C09

34. How might you obtain a list of active nodes that use VoIP?

• A. From on line repeater lists maintained by the local repeater frequency coordinator
• B. All of these choices are correct
• C. From a repeater directory
• D. By subscribing to an on line service

T5B11

35. What is the amount of change, measured in decibels (dB), of a power increase from 20 watts to 200 watts?

• A. 28 dB
• B. 10 dB
• C. 18 dB
• D. 12 dB