Practice Exam

T1D03

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

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

T1F01

2. When must the station and its records be available for FCC inspection?

• A. At any time upon request by an FCC representative
• B. At any time after written notification by the FCC of such inspection
• C. At any time ten days after notification by the FCC of such an inspection
• D. Only when presented with a valid warrant by an FCC official or government agent

T1A06

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

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

T8B03

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

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

T1C11

5. If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

• A. No, you must wait until the license has been renewed
• B. Yes, for up to one year
• C. Yes, as soon as you apply for renewal
• D. Yes, for up to two years

T9B02

6. What is the most common impedance of coaxial cables used in amateur radio?

• A. 50 ohms
• B. 12 ohms
• C. 600 ohms
• D. 8 ohms

T3A02

7. What is the effect of vegetation on UHF and microwave signals?

• A. Absorption
• B. Amplification
• C. Polarization rotation
• D. Knife-edge diffraction

T2C06

8. What is the Amateur Radio Emergency Service (ARES)?

• A. A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
• B. A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
• C. A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
• D. A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency

T9A06

9. Which of the following types of antenna offers the greatest gain?

• A. J pole
• B. 5/8 wave vertical
• C. Yagi
• D. Isotropic

T3C10

10. Which of the following bands may provide long-distance communications via the ionosphere's F region during the peak of the sunspot cycle?

• A. 23 centimeters
• B. 6 and 10 meters
• C. All these choices are correct
• D. 70 centimeters and 1.25 meters

T4A03

11. Why are short, heavy-gauge wires used for a transceiver's DC power connection?

• A. To avoid RF interference
• B. To minimize voltage drop when transmitting
• C. To provide a good counterpoise for the antenna
• D. All these choices are correct

T0B06

12. What is the minimum safe distance from a power line to allow when installing an antenna?

• A. Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
• B. 1/2 wavelength at the operating frequency
• C. Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
• D. The height of the power line above ground

T3B07

13. In addition to frequency, which of the following is used to identify amateur radio bands?

• A. All these choices are correct
• B. The approximate wavelength in meters
• C. Channel numbers
• D. Traditional letter/number designators

T7A03

14. Which of the following is used to convert a signal from one frequency to another?

• A. Mixer
• B. Amplifier
• C. Phase splitter
• D. Inverter

T1E10

15. Which of the following is an example of remote control as defined in Part 97?

• A. Controlling a model aircraft, boat, or car by amateur radio
• B. Repeater operation
• C. Operating the station over the internet
• D. All these choices are correct

T5C02

16. What is the unit of capacitance?

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

T6C04

17. What is component 3 in figure T-1?

• A. Ground symbol
• B. Transistor
• C. Lamp
• D. Resistor

T0A10

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

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

T7C08

19. Which instrument can be used to determine SWR?

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

T1B08

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

T5A08

21. Which of the following is a good electrical insulator?

• A. Aluminum
• B. Mercury
• C. Glass
• D. Copper

T8A09

22. What is the approximate bandwidth of a VHF repeater FM voice signal?

• A. Between 10 and 15 kHz
• B. About 150 kHz
• C. Less than 500 Hz
• D. Between 50 and 125 kHz

T2A04

23. What is an appropriate way to call another station on a repeater if you know the other station's call sign?

• A. Say "break, break," then say the station's call sign
• B. Say "CQ" three times, then the other station's call sign
• C. Wait for the station to call CQ, then answer
• D. Say the station's call sign, then identify with your call sign

T6A05

24. What type of electrical component consists of conductive surfaces separated by an insulator?

• A. Resistor
• B. Oscillator
• C. Capacitor
• D. Potentiometer

T8C02

25. Which of these items would be useful for a hidden transmitter hunt?

• A. A directional antenna
• B. Calibrated SWR meter
• C. All these choices are correct
• D. A calibrated noise bridge

T7B03

26. Which of the following can cause radio frequency interference?

• A. Harmonics
• B. All these choices are correct
• C. Fundamental overload
• D. Spurious emissions

T6B02

27. What electronic component allows current to flow in only one direction?

• A. Diode
• B. Driven element
• C. Fuse
• D. Resistor

T4B04

28. What is a way to enable quick access to a favorite frequency or channel on your transceiver?

• A. Enable the VOX
• B. Enable the frequency offset
• C. Store it in a memory channel
• D. Use the scan mode to select the desired frequency

T5B09

29. Which decibel value most closely represents a power increase from 5 watts to 10 watts?

• A. 2 dB
• B. 3 dB
• C. 10 dB
• D. 5 dB

T2B13

30. What is the purpose of a squelch function?

• A. Eliminate parasitic oscillations in an RF amplifier
• B. Reduce a CW transmitter's key clicks
• C. Mute the receiver audio when a signal is not present
• D. Reduce interference from impulse noise

T0C09

31. How can you make sure your station stays in compliance with RF safety regulations?

• A. All these choices are correct
• B. By making sure your antennas have low SWR
• C. By re-evaluating the station whenever an item in the transmitter or antenna system is changed
• D. By informing the FCC of any changes made in your station

T7D11

32. 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 operating at the correct frequency
• C. Ensure that the circuit is grounded
• D. Ensure that the circuit is not powered

T8D05

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

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

T6D04

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

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

T5D04

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

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