Practice Exam

T6B09

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

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

T5D05

2. 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

T8D11

3. What is an ARQ transmission system?

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

T7C05

4. Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

• A. To comply with FCC rules on spectral purity
• B. To lower the SWR on the transmission line
• C. To protect the output amplifier transistors
• D. Because power supplies cannot supply enough current at high SWR

T2A09

5. Which of the following indicates that a station is listening on a repeater and looking for a contact?

• A. "CQ CQ" followed by the repeater's call sign
• B. The station's call sign followed by the word "monitoring"
• C. "QSY" followed by your call sign
• D. The repeater call sign followed by the station's call sign

T9B01

6. What is a benefit of low SWR?

• A. Reduced television interference
• B. Reduced signal loss
• C. All these choices are correct
• D. Less antenna wear

T1C03

7. What types of international communications are an FCC-licensed amateur radio station permitted to make?

• A. Communications incidental to the purposes of the Amateur Radio Service and remarks of a personal character
• B. Only communications incidental to contest exchanges; all other communications are prohibited
• C. Communications incidental to conducting business or remarks of a personal nature
• D. Any communications that would be permitted by an international broadcast station

T0B09

8. Why should you avoid attaching an antenna to a utility pole?

• A. All these choices are correct
• B. The antenna could contact high-voltage power lines
• C. The 60 Hz radiations from the feed line may increase the SWR
• D. The antenna will not work properly because of induced voltages

T8C07

9. What is Voice Over Internet Protocol (VoIP)?

• A. A set of rules specifying how to identify your station when linked over the internet to another station
• B. A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
• C. A method of delivering voice communications over the internet using digital techniques
• D. A technique employed to "spot" DX stations via the internet

T1F04

10. What language may you use for identification when operating in a phone sub-band?

• A. English
• B. Any language recognized by the ITU
• C. Any language recognized by the United Nations
• D. English, French, or Spanish

T7D11

11. Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

• A. Ensure that the applied voltages are correct
• B. Ensure that the circuit is not powered
• C. Ensure that the circuit is grounded
• D. Ensure that the circuit is operating at the correct frequency

T5A02

12. Electrical power is measured in which of the following units?

• A. Amperes
• B. Volts
• C. Watts
• D. Watt-hours

T4B05

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

• A. Prevents interference to nearby repeaters
• B. Checks for messages left on a digital bulletin board
• C. Tunes through a range of frequencies to check for activity
• D. Checks incoming signal deviation

T1B11

14. What is the maximum peak envelope power output for Technician class operators in their HF band segments?

• A. 50 watts
• B. 200 watts
• C. 100 watts
• D. 10 watts

T1D03

15. When is it permissible to transmit messages encoded to obscure their meaning?

• A. Never
• B. Only when transmitting certain approved digital codes
• C. Only when transmitting control commands to space stations or radio control craft
• D. Only during contests

T2C04

16. What is RACES?

• A. An FCC part 97 amateur radio service for civil defense communications during national emergencies
• B. An international radio experimentation society
• C. An emergency organization combining amateur radio and citizens band operators and frequencies
• D. A radio contest held in a short period, sometimes called a "sprint"

T2B12

17. What is the purpose of the color code used on DMR repeater systems?

• A. Must match the repeater color code for access
• B. Defines the frequency pair to use
• C. Identifies the codec used
• D. Defines the minimum signal level required for access

T3A07

18. What weather condition might decrease range at microwave frequencies?

• A. Low barometric pressure
• B. High winds
• C. Colder temperatures
• D. Precipitation

T6D07

19. Which of the following is commonly used as a visual indicator?

• A. Zener diode
• B. FET
• C. Bipolar transistor
• D. LED

T1E05

20. What is an amateur station's control point?

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

T3B08

21. What frequency range is referred to as VHF?

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

T6A04

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

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

T3C07

23. What band is best suited for communicating via meteor scatter?

• A. 6 meters
• B. 33 centimeters
• C. 2 meters
• D. 70 centimeters

T8A05

24. Which of the following types of signal has the narrowest bandwidth?

• A. SSB voice
• B. Slow-scan TV
• C. CW
• D. FM voice

T7B07

25. Which of the following can reduce overload of a VHF transceiver by a nearby commercial FM station?

• A. Installing bypass capacitors on the microphone cable
• B. Installing an RF preamplifier
• C. Using double-shielded coaxial cable
• D. Installing a band-reject filter

T0C13

26. Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

• A. Anyone who is near an antenna
• B. The local zoning board
• C. The FCC
• D. The station licensee

T0A10

27. What hazard is caused by charging or discharging a battery too quickly?

• A. Overheating or out-gassing
• B. Excess output ripple
• C. Half-wave rectification
• D. Inverse memory effect

T6C12

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

• A. Component connections
• B. All these choices are correct
• C. Physical appearance of components
• D. Wire lengths

T1A01

29. Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

• A. Providing personal radio communications for as many citizens as possible
• B. Advancing skills in the technical and communication phases of the radio art
• C. Providing communications for international non-profit organizations
• D. All these choices are correct

T8B05

30. What is a satellite beacon?

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

T9A02

31. Which of the following describes a type of antenna loading?

• A. Electrically lengthening by inserting inductors in radiating elements
• B. Strengthening the radiating elements of a beam antenna to better resist wind damage
• C. Installing a spring in the base of a mobile vertical antenna to make it more flexible
• D. Inserting a resistor in the radiating portion of the antenna to make it resonant

T7A08

32. Which of the following describes combining speech with an RF carrier signal?

• A. Impedance matching
• B. Oscillation
• C. Low-pass filtering
• D. Modulation

T5C06

33. What does the abbreviation "RF" mean?

• A. Radio frequency signals of all types
• B. The resonant frequency of a tuned circuit
• C. Reflective force in antenna transmission lines
• D. The real frequency transmitted as opposed to the apparent frequency

T5B02

34. Which is equal to 1,500,000 hertz?

• A. 15 GHz
• B. 1500 kHz
• C. 150 kHz
• D. 1500 MHz

T4A02

35. Which of the following should be considered when selecting an accessory SWR meter?

• A. All these choices are correct
• B. The frequency and power level at which the measurements will be made
• C. The distance that the meter will be located from the antenna
• D. The types of modulation being used at the station