Practice Exam

T8A09

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

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

T5B08

2. Which is equal to 1,000,000 picofarads?

• A. 1 microfarad
• B. 0.001 microfarads
• C. 1,000,000,000 microfarads
• D. 1000 microfarads

T2A07

3. What is meant by "repeater offset"?

• A. The repeater station identification is done on a separate frequency
• B. The number of simultaneous transmit frequencies used by a repeater
• C. The difference between a repeater's transmit and receive frequencies
• D. The repeater has a time delay to prevent interference

T4B03

4. How is squelch adjusted so that a weak FM signal can be heard?

• A. Turn on the anti-squelch function
• B. Turn up the audio level until it overcomes the squelch threshold
• C. Set the squelch threshold so that receiver output audio is on all the time
• D. Enable squelch enhancement

T0C10

5. Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

• A. It takes into account the thermal effects of the final amplifier
• B. It affects the peak exposure to radiation
• C. It affects the average exposure to radiation
• D. It takes into account the antenna feed line loss

T6D08

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

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

T3C10

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

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

T1B04

8. Which amateur band includes 146.52 MHz?

• A. 70 centimeters
• B. 20 meters
• C. 6 meters
• D. 2 meters

T0A09

9. What should be done to all external ground rods or earth connections?

• A. Keep them as far apart as possible
• B. Waterproof them with silicone caulk or electrical tape
• C. Bond them together with heavy wire or conductive strap
• D. Tune them for resonance on the lowest frequency of operation

T7A01

10. Which term describes the ability of a receiver to detect the presence of a signal?

• A. Selectivity
• B. Total Harmonic Distortion
• C. Linearity
• D. Sensitivity

T7C01

11. What is the primary purpose of a dummy load?

• A. To prevent transmitting signals over the air when making tests
• B. To improve the efficiency of an antenna
• C. To prevent over-modulation of a transmitter
• D. To improve the signal-to-noise ratio of a receiver

T2B02

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

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

T6A09

13. What electrical component is used to protect other circuit components from current overloads?

• A. Fuse
• B. Thyratron
• C. All these choices are correct
• D. Varactor

T3A12

14. What is the effect of fog and rain on signals in the 10 meter and 6 meter bands?

• A. Absorption
• B. Range increase
• C. Deflection
• D. There is little effect

T8B08

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

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

T8C07

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

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

T1E10

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

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

T9A03

18. Which of the following describes a simple dipole oriented parallel to Earth's surface?

• A. A ground-wave antenna
• B. A horizontally polarized antenna
• C. A vertically polarized antenna
• D. A travelling-wave antenna

T7B11

19. What is a symptom of RF feedback in a transmitter or transceiver?

• A. The transmitter will not stay on the desired frequency
• B. Reports of garbled, distorted, or unintelligible voice transmissions
• C. Frequent blowing of power supply fuses
• D. Excessive SWR at the antenna connection

T5D04

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

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

T7D06

21. Which of the following can damage a multimeter?

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

T0B11

22. Which of the following establishes grounding requirements for an amateur radio tower or antenna?

• A. Local electrical codes
• B. FAA tower lighting regulations
• C. FCC Part 97 rules
• D. UL recommended practices

T1F10

23. Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?

• A. The owner of the repeater
• B. Both the originating station and the repeater owner
• C. The control operator of the repeater
• D. The control operator of the originating station

T3B08

24. What frequency range is referred to as VHF?

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

T1D07

25. What types of amateur stations can automatically retransmit the signals of other amateur stations?

• A. Beacon, repeater, or space stations
• B. Auxiliary, beacon, or Earth stations
• C. Earth, repeater, or space stations
• D. Repeater, auxiliary, or space stations

T8D07

26. 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

T6B04

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

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

T5A05

28. What is the electrical term for the force that causes electron flow?

• A. Inductance
• B. Voltage
• C. Capacitance
• D. Ampere-hours

T1A06

29. 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

T2C11

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

• A. The call sign of the originating station
• 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 number of words or word equivalents in the text portion of the message

T1C05

31. Which of the following is a valid Technician class call sign format?

• A. All these choices are correct
• B. KA1X
• C. W1XX
• D. KF1XXX

T5C09

32. How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

• A. 3.8 watts
• B. 138 watts
• C. 23.8 watts
• D. 0.7 watts

T6C12

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

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

T4A01

34. Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

• A. 13.8 volts at 4 amperes
• B. 24.0 volts at 12 amperes
• C. 13.8 volts at 12 amperes
• D. 24.0 volts at 4 amperes

T9B01

35. What is a benefit of low SWR?

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