Practice Exam

T5B09

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

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

T0A10

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

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

T0C06

3. Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

• A. By measurement of field strength using calibrated equipment
• B. By calculation based on FCC OET Bulletin 65
• C. All these choices are correct
• D. By calculation based on computer modeling

T3A06

4. What is the meaning of the term "picket fencing"?

• A. Local vs long-distance communications
• B. Alternating transmissions during a net operation
• C. Rapid flutter on mobile signals due to multipath propagation
• D. A type of ground system used with vertical antennas

T6C10

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

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

T8D07

6. Which of the following describes DMR?

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

T1F04

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

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

T0B08

8. Which is a proper grounding method for a tower?

• A. A single four-foot ground rod, driven into the ground no more than 12 inches from the base
• B. A connection between the tower base and a cold water pipe
• C. Separate eight-foot ground rods for each tower leg, bonded to the tower and each other
• D. A ferrite-core RF choke connected between the tower and ground

T3B11

9. What is the approximate velocity of a radio wave in free space?

• A. 150,000 meters per second
• B. 300,000,000 meters per second
• C. 300,000,000 miles per hour
• D. 150,000 miles per hour

T1B01

10. Which of the following frequency ranges are available for phone operation by Technician licensees?

• A. 28.050 MHz to 28.150 MHz
• B. 28.500 MHz to 28.600 MHz
• C. 28.100 MHz to 28.300 MHz
• D. 28.300 MHz to 28.500 MHz

T7B02

11. What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

• A. The receiver is unable to reject strong signals outside the AM or FM band
• B. The microphone gain of the transmitter is turned up too high
• C. The audio amplifier of the transmitter is overloaded
• D. The deviation of an FM transmitter is set too low

T5C08

12. What is the formula used to calculate electrical power (P) in a DC circuit?

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

T5A08

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

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

T1E09

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

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

T1C06

15. From which of the following locations may an FCC-licensed amateur station transmit?

• A. From anywhere within International Telecommunication Union (ITU) Regions 2 and 3
• B. From within any country that belongs to the International Telecommunication Union
• C. From any vessel or craft located in international waters and documented or registered in the United States
• D. From within any country that is a member of the United Nations

T1A02

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

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

T1D03

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

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

T7D10

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

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

T9B08

19. Which of the following is a source of loss in coaxial feed line?

• A. High SWR
• B. Multiple connectors in the line
• C. All these choices are correct
• D. Water intrusion into coaxial connectors

T3C07

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

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

T6B06

21. How is the cathode lead of a semiconductor diode often marked on the package?

• A. With the letter K
• B. With the letter C
• C. With the word "cathode"
• D. With a stripe

T6A05

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

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

T4A08

23. Which of the following conductors is preferred for bonding at RF?

• A. Copper braid removed from coaxial cable
• B. Flat copper strap
• C. Steel wire
• D. Twisted-pair cable

T7C07

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

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

T7A08

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

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

T8A08

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

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

T2A06

27. Which of the following is required when making on-the-air test transmissions?

• A. All these choices are correct
• B. Notify the FCC of the transmissions
• C. Conduct tests only between 10 p.m. and 6 a.m. local time
• D. Identify the transmitting station

T2C11

28. What is meant by "check" in a radiogram header?

• A. The number of words or word equivalents in the text portion of the message
• B. A list of stations that have relayed the message
• C. A box on the message form that indicates that the message was received and/or relayed
• D. The call sign of the originating station

T6D08

29. Which of the following is combined with an inductor to make a resonant circuit?

• A. Resistor
• B. Capacitor
• C. Potentiometer
• D. Zener diode

T9A04

30. What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna?

• A. It is mechanically fragile
• B. It has low efficiency
• C. All these choices are correct
• D. It transmits only circularly polarized signals

T5D05

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

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

T4B11

32. Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

• A. The codec type being used
• B. All these choices are correct
• C. Your call sign
• D. Your output power

T8B06

33. Which of the following are inputs to a satellite tracking program?

• A. All these choices are correct
• B. The satellite transmitted power
• C. The last observed time of zero Doppler shift
• D. The Keplerian elements

T2B06

34. What type of signaling uses pairs of audio tones?

• A. CTCSS
• B. GPRS
• C. D-STAR
• D. DTMF

T8C03

35. What operating activity involves contacting as many stations as possible during a specified period?

• A. Public service events
• B. Simulated emergency exercises
• C. Contesting
• D. Net operations