Practice Exam

T3B09

1. What frequency range is referred to as UHF?

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

T1B08

2. How are US amateurs restricted in segments of bands where the Amateur Radio Service is secondary?

• A. U.S. amateurs must give foreign amateur stations priority in those segments
• B. International communications are not permitted in those segments
• C. U.S. amateurs may find non-amateur stations in those segments, and must avoid interfering with them
• D. Digital transmissions are not permitted in those segments

T9A12

3. What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

• A. It radiates at a very high angle
• B. It has more gain than a 1/4-wavelength antenna
• C. It has 10 times the power gain of a 1/4 wavelength whip
• D. It eliminates distortion caused by reflected signals

T1F08

4. What is the definition of third party communications?

• A. A message from a control operator to another amateur station control operator on behalf of another person
• B. Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments
• C. Amateur radio communications where three stations are in communications with one another
• D. Operation when the transmitting equipment is licensed to a person other than the control operator

T3C07

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

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

T2A03

6. What is a common repeater frequency offset in the 70 cm band?

• A. Plus or minus 5 MHz
• B. Plus or minus 1 MHz
• C. Plus or minus 500 kHz
• D. Plus or minus 600 kHz

T0A06

7. What is a good way to guard against electrical shock at your station?

• A. All these choices are correct
• B. Install mechanical interlocks in high-voltage circuits
• C. Connect all AC powered station equipment to a common safety ground
• D. Use three-wire cords and plugs for all AC powered equipment

T6D03

8. Which of the following is a reason to use shielded wire?

• A. To prevent coupling of unwanted signals to or from the wire
• B. To decrease the resistance of DC power connections
• C. To increase the current carrying capability of the wire
• D. To couple the wire to other signals

T7D06

9. Which of the following can damage a multimeter?

• A. Attempting to measure voltage when using the resistance setting
• B. Not allowing it to warm up properly
• C. Attempting to measure resistance using the voltage setting
• D. Failing to connect one of the probes to ground

T1C09

10. What is the grace period for renewal if an amateur license expires?

• A. Two years
• B. Three years
• C. Ten years
• D. Five years

T6A08

11. What is the function of an SPDT switch?

• A. A single circuit is switched between one of two other circuits
• B. Two circuits are opened or closed
• C. A single circuit is opened or closed
• D. Two circuits are each switched between one of two other circuits

T5A03

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

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

T0B09

13. 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 antenna will not work properly because of induced voltages
• D. The 60 Hz radiations from the feed line may increase the SWR

T8D05

14. Which of the following is an application of APRS?

• A. Providing real-time tactical digital communications in conjunction with a map showing the locations of stations
• B. Providing information on the number of stations signed into a repeater
• C. Providing voice over internet connection between repeaters
• D. Showing automatically the number of packets transmitted via PACTOR during a specific time interval

T7C05

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

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

T7A06

16. What device converts the RF input and output of a transceiver to another band?

• A. Phase converter
• B. Low-pass filter
• C. High-pass filter
• D. Transverter

T5B01

17. How many milliamperes is 1.5 amperes?

• A. 15,000 milliamperes
• B. 150 milliamperes
• C. 1500 milliamperes
• D. 15 milliamperes

T3A01

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

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

T8A08

19. What is the approximate bandwidth of a typical single sideband (SSB) voice signal?

• A. 15 kHz
• B. 3 kHz
• C. 1 kHz
• D. 6 kHz

T1D06

20. What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

• A. The FCC maintains a list of words that are not permitted to be used on amateur frequencies
• B. Any such language is prohibited
• C. The ITU maintains a list of words that are not permitted to be used on amateur frequencies
• D. There is no such prohibition

T5C02

21. What is the unit of capacitance?

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

T1A10

22. What is the Radio Amateur Civil Emergency Service (RACES)?

• A. All these choices are correct
• B. An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization
• C. A radio service using amateur frequencies for emergency management or civil defense communications
• D. A radio service using amateur stations for emergency management or civil defense communications

T8C04

23. Which of the following is good procedure when contacting another station in a contest?

• A. All these choices are correct
• B. Send only the minimum information needed for proper identification and the contest exchange
• C. Sign only the last two letters of your call if there are many other stations calling
• D. Contact the station twice to be sure that you are in his log

T4B02

24. Which of the following can be used to enter a transceiver's operating frequency?

• A. The CTCSS or DTMF encoder
• B. All these choices are correct
• C. The Automatic Frequency Control
• D. The keypad or VFO knob

T7B06

25. Which of the following actions should you take if a neighbor tells you that your station's transmissions are interfering with their radio or TV reception?

• A. All these choices are correct
• B. Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
• C. Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel
• D. Immediately turn off your transmitter and contact the nearest FCC office for assistance

T2C02

26. Which of the following are typical duties of a Net Control Station?

• A. All these choices are correct
• B. Call the net to order and direct communications between stations checking in
• C. Ensure that all stations checking into the net are properly licensed for operation on the net frequency
• D. Choose the regular net meeting time and frequency

T6C10

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

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

T1E09

28. Which of the following are required for remote control operation?

• A. The control operator must indirectly manipulate the controls
• B. All these choices are correct
• C. A control operator is required at all times
• D. The control operator must be at the control point

T4A12

29. What is an electronic keyer?

• A. An interlock to prevent unauthorized use of a radio
• B. A device that assists in manual sending of Morse code
• C. A device for voice activated switching from receive to transmit
• D. A device for switching antennas from transmit to receive

T6B04

30. Which of the following components can consist of three regions of semiconductor material?

• A. Triode
• B. Alternator
• C. Pentagrid converter
• D. Transistor

T5D01

31. What formula is used to calculate current in a circuit?

• A. I = E / R
• B. I = E * R
• C. I = E - R
• D. I = E + R

T9B05

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

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

T2B08

33. Which of the following applies when two stations transmitting on the same frequency interfere with each other?

• A. The stations should negotiate continued use of the frequency
• B. Interference is inevitable, so no action is required
• C. Both stations should choose another frequency to avoid conflict
• D. Use subaudible tones so both stations can share the frequency

T0C12

34. How does RF radiation differ from ionizing radiation (radioactivity)?

• A. RF radiation can only be detected with an RF dosimeter
• B. RF radiation is limited in range to a few feet
• C. RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA
• D. RF radiation is perfectly safe

T8B09

35. What causes spin fading of satellite signals?

• A. Doppler shift of the received signal
• B. Interfering signals within the satellite uplink band
• C. Circular polarized noise interference radiated from the sun
• D. Rotation of the satellite and its antennas