Practice Exam

T9B05

1. What happens as the frequency of a signal in coaxial cable is increased?

• A. The characteristic impedance decreases
• B. The characteristic impedance increases
• C. The loss decreases
• D. The loss increases

T5D04

2. What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?

• A. 270 ohms
• B. 93 ohms
• C. 3 ohms
• D. 30 ohms

T4A11

3. Where should the negative power return of a mobile transceiver be connected in a vehicle?

• A. At the 12 volt battery chassis ground
• B. To any metal part of the vehicle
• C. Through the transceiver's mounting bracket
• D. At the antenna mount

T9A05

4. Which of the following increases the resonant frequency of a dipole antenna?

• A. Adding capacitive loading to the ends of the radiating wires
• B. Shortening it
• C. Lengthening it
• D. Inserting coils in series with radiating wires

T8B08

5. What is meant by the statement that a satellite is operating in U/V mode?

• A. The satellite frequencies are usually variable
• B. The satellite operates using ultraviolet frequencies
• C. The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band
• D. The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band

T0A05

6. Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

• A. The power supply ripple would greatly increase
• B. The larger fuse would be likely to blow because it is rated for higher current
• C. All these choices are correct
• D. Excessive current could cause a fire

T3C02

7. What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

• A. Long-distance ionospheric propagation is far more common on HF
• B. HF antennas are generally smaller
• C. There is less atmospheric interference (static) on HF
• D. HF accommodates wider bandwidth signals

T2A10

8. What is a band plan, beyond the privileges established by the FCC?

• A. A voluntary guideline for using different modes or activities within an amateur band
• B. A list of available net frequencies
• C. A plan devised by a club to indicate frequency band usage
• D. A list of operating schedules

T5C13

9. What is the abbreviation for kilohertz?

• A. kHz
• B. KHZ
• C. khZ
• D. khz

T1B05

10. How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

• A. Fixed digital message forwarding systems only
• B. Spread spectrum only
• C. Emergency traffic only
• D. Fast-scan television only

T3B03

11. What are the two components of a radio wave?

• A. Electric and magnetic fields
• B. Voltage and current
• C. Impedance and reactance
• D. Ionizing and non-ionizing radiation

T5A10

12. Which term describes the rate at which electrical energy is used?

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

T6B05

13. What type of transistor has a gate, drain, and source?

• A. Bipolar junction
• B. Tesla-effect
• C. Varistor
• D. Field-effect

T0C11

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

T1D09

15. When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

• A. When broadcasting communications to or from the space shuttle
• B. Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
• C. When such communications are directly related to the immediate safety of human life or protection of property
• D. Never

T1A02

16. Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

• A. Homeland Security
• B. FEMA
• C. All these choices are correct
• D. The FCC

T7B08

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

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

T6C08

18. What is component 9 in figure T-2?

• A. Variable inductor
• B. Variable transformer
• C. Variable capacitor
• D. Variable resistor

T5B06

19. Which is equal to 3000 milliamperes?

• A. 3,000,000 amperes
• B. 3 amperes
• C. 0.003 amperes
• D. 0.3 amperes

T8D07

20. Which of the following describes DMR?

• A. An automatic position tracking mode for FM mobiles communicating through repeaters
• B. A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
• C. An automatic computer logging technique for hands-off logging when communicating while operating a vehicle
• D. A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction

T6A02

21. What type of component is often used as an adjustable volume control?

• A. Fixed resistor
• B. Power resistor
• C. Transformer
• D. Potentiometer

T2B02

22. What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

• A. Carrier squelch
• B. CTCSS
• C. DTMF
• D. Tone burst

T0B01

23. Which of the following is good practice when installing ground wires on a tower for lightning protection?

• A. All these choices are correct
• B. Put a drip loop in the ground connection to prevent water damage to the ground system
• C. Ensure that connections are short and direct
• D. Make sure all ground wire bends are right angles

T8A01

24. Which of the following is a form of amplitude modulation?

• A. Phase shift keying (PSK)
• B. Packet radio
• C. Spread spectrum
• D. Single sideband

T2C08

25. Which of the following is a characteristic of good traffic handling?

• A. Ensuring that any newsworthy messages are relayed to the news media
• B. Making decisions as to whether messages are worthy of relay or delivery
• C. All these choices are correct
• D. Passing messages exactly as received

T4B06

26. Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

• A. The bandwidth selection
• B. The AGC or limiter
• C. The tone squelch
• D. The RIT or Clarifier

T7C07

27. What happens to power lost in a feed line?

• A. It increases the SWR
• B. It is radiated as harmonics
• C. It distorts the signal
• D. It is converted into heat

T8C06

28. How is over the air access to IRLP nodes accomplished?

• A. By using DTMF signals
• B. By using CTCSS tone codes
• C. By entering the proper internet password
• D. By obtaining a password that is sent via voice to the node

T3A08

29. What is a likely cause of irregular fading of signals propagated by the ionosphere?

• A. Interference from thunderstorms
• B. Frequency shift due to Faraday rotation
• C. Intermodulation distortion
• D. Random combining of signals arriving via different paths

T1C08

30. What is the normal term for an FCC-issued amateur radio license?

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

T1E11

31. Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

• A. The person operating the station equipment
• B. The third party participant
• C. The station custodian
• D. The station licensee

T7A08

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

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

T7D10

33. What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

• A. Decreasing resistance with time
• B. Steady full-scale reading
• C. Alternating between open and short circuit
• D. Increasing resistance with time

T1F05

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

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

T6D07

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

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