Practice Exam

T5B04

1. Which is equal to one microvolt?

• A. One thousand kilovolts
• B. One one-millionth of a volt
• C. One million volts
• D. One one-thousandth of a volt

T7C08

2. Which instrument can be used to determine SWR?

• A. Voltmeter
• B. Directional wattmeter
• C. Iambic pentameter
• D. Ohmmeter

T2A12

3. What should you do before calling CQ?

• A. Ask if the frequency is in use
• B. All these choices are correct
• C. Listen first to be sure that no one else is using the frequency
• D. Make sure you are authorized to use that frequency

T1D05

4. When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

• A. When no profit is made on the sale
• B. When the equipment is not the personal property of either the station licensee, or the control operator, or their close relatives
• C. When selling amateur radio equipment and not on a regular basis
• D. Never

T8D11

5. What is an ARQ transmission system?

• A. A method of compressing data using autonomous reiterative Q codes prior to final encoding
• B. A special transmission format limited to video signals
• C. A system used to encrypt command signals to an amateur radio satellite
• D. An error correction method in which the receiving station detects errors and sends a request for retransmission

T7B08

6. 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. Politely inform your neighbor that FCC rules prohibit the use of devices that cause interference
• D. Work with your neighbor to identify the offending device

T6B09

7. What are the names for the electrodes of a diode?

• A. Gate and base
• B. Anode and cathode
• C. Plus and minus
• D. Source and drain

T8A03

8. Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?

• A. DRM
• B. SSB
• C. FM
• D. PM

T9A09

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

• A. 236
• B. 112
• C. 50
• D. 6

T9B09

10. What can cause erratic changes in SWR?

• A. Local thunderstorm
• B. Over-modulation
• C. Loose connection in the antenna or feed line
• D. Overload from a strong local station

T1A06

11. What is the FCC Part 97 definition of a beacon?

• A. An amateur station transmitting communications for the purposes of observing propagation or related experimental activities
• B. A government transmitter marking the amateur radio band edges
• C. A bulletin sent by the FCC to announce a national emergency
• D. A continuous transmission of weather information authorized in the amateur bands by the National Weather Service

T3B01

12. What is the relationship between the electric and magnetic fields of an electromagnetic wave?

• A. They are at right angles
• B. They travel at different speeds
• C. They revolve in opposite directions
• D. They are in parallel

T2B01

13. How is a VHF/UHF transceiver's "reverse" function used?

• A. To reduce power output
• B. To listen on a repeater's output frequency
• C. To increase power output
• D. To listen on a repeater's input frequency

T8C08

14. What is the Internet Radio Linking Project (IRLP)?

• A. A technique to connect amateur radio systems, such as repeaters, via the internet using Voice Over Internet Protocol (VoIP)
• B. A technique for measuring signal strength of an amateur transmitter via the internet
• C. A system for providing access to websites via amateur radio
• D. A system for informing amateurs in real time of the frequency of active DX stations

T1B02

15. Which amateurs may contact the International Space Station (ISS) on VHF bands?

• A. Any amateur holding a General class or higher license
• B. Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
• C. Any amateur holding a Technician class or higher license
• D. Any amateur holding a General class or higher license who has applied for and received approval from NASA

T6C10

16. What is component 3 in figure T-3?

• A. Variable inductor
• B. Variable capacitor
• C. Meter
• D. Connector

T5C04

17. What is the unit of inductance?

• A. The farad
• B. The coulomb
• C. The henry
• D. The ohm

T7A11

18. Where is an RF preamplifier installed?

• A. At the output of the transmitter power amplifier
• B. At the output of the receiver audio amplifier
• C. Between the transmitter and the antenna tuner
• D. Between the antenna and receiver

T7D02

19. How is a voltmeter connected to a component to measure applied voltage?

• A. In phase
• B. In series
• C. In parallel
• D. In quadrature

T0A08

20. Where should a fuse or circuit breaker be installed in a 120V AC power circuit?

• A. In parallel with the hot and neutral conductors
• B. In series with the hot and neutral conductors
• C. In series with the hot conductor only
• D. In parallel with the hot conductor only

T4B07

21. What does a DMR "code plug" contain?

• A. Access information for repeaters and talkgroups
• B. The codec for digitizing audio
• C. The DMR software version
• D. Your call sign in CW for automatic identification

T6D04

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

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

T2C03

23. What technique is used to ensure that voice messages containing unusual words are received correctly?

• A. Speak very loudly into the microphone
• B. Send the words by voice and Morse code
• C. All these choices are correct
• D. Spell the words using a standard phonetic alphabet

T3C06

24. What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

• A. F2 region refraction
• B. D region refraction
• C. Tropospheric ducting
• D. Faraday rotation

T1E02

25. Who may be the control operator of a station communicating through an amateur satellite or space station?

• A. Only an Amateur Extra Class operator who is also an AMSAT member
• B. Only an Amateur Extra Class operator
• C. A General class or higher licensee with a satellite operator certification
• D. Any amateur allowed to transmit on the satellite uplink frequency

T8B03

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

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

T0B03

27. Under what circumstances is it safe to climb a tower without a helper or observer?

• A. When the work being done is not more than 20 feet above the ground
• B. Never
• C. When no electrical work is being performed
• D. When no mechanical work is being performed

T5D05

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

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

T1F05

29. What method of call sign identification is required for a station transmitting phone signals?

• A. Send the call sign using only a phone emission
• B. Send the call sign followed by the indicator RPT
• C. Send the call sign followed by the indicator R
• D. Send the call sign using a CW or phone emission

T0C08

30. Which of the following actions can reduce exposure to RF radiation?

• A. All these choices are correct
• B. Increase the duty cycle
• C. Relocate antennas
• D. Relocate the transmitter

T1C02

31. Who may select a desired call sign under the vanity call sign rules?

• A. Any licensed amateur
• B. Only a licensed amateur who has been licensed continuously for more than 10 years
• C. Only a licensed amateur with a General or Amateur Extra Class license
• D. Only a licensed amateur with an Amateur Extra Class license

T6A09

32. What electrical component is used to protect other circuit components from current overloads?

• A. All these choices are correct
• B. Thyratron
• C. Fuse
• D. Varactor

T3A01

33. Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

• A. The signal path encounters different concentrations of water vapor
• B. Multipath propagation cancels or reinforces signals
• C. VHF ionospheric propagation is very sensitive to path length
• D. All these choices are correct

T5A03

34. What is the name for the flow of electrons in an electric circuit?

• A. Voltage
• B. Current
• C. Resistance
• D. Capacitance

T4A09

35. How can you determine the length of time that equipment can be powered from a battery?

• A. Multiply the square of the current rating of the battery by the input resistance of the equipment
• B. Divide the battery ampere-hour rating by the average current draw of the equipment
• C. Multiply the watts per hour consumed by the equipment by the battery power rating
• D. Divide the watt-hour rating of the battery by the peak power consumption of the equipment