Practice Exam

T0A09

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

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

T5A12

2. What describes the number of times per second that an alternating current makes a complete cycle?

• A. Pulse rate
• B. Frequency
• C. Wavelength
• D. Speed

T4B07

3. What does a DMR "code plug" contain?

• A. Your call sign in CW for automatic identification
• B. Access information for repeaters and talkgroups
• C. The codec for digitizing audio
• D. The DMR software version

T3C01

4. Why are simplex UHF signals rarely heard beyond their radio horizon?

• A. FCC regulations prohibit them from going more than 50 miles
• B. UHF signals are usually not propagated by the ionosphere
• C. They are too weak to go very far
• D. UHF signals are absorbed by the ionospheric D region

T0C08

5. Which of the following actions can reduce exposure to RF radiation?

• A. Increase the duty cycle
• B. Relocate the transmitter
• C. Relocate antennas
• D. All these choices are correct

T5D02

6. What formula is used to calculate voltage in a circuit?

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

T7A08

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

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

T5B13

8. Which is equal to 2425 MHz?

• A. 2425 GHz
• B. 0.002425 GHz
• C. 24.25 GHz
• D. 2.425 GHz

T6A02

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

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

T7C08

10. Which instrument can be used to determine SWR?

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

T1C08

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

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

T3A06

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

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

T9A11

13. What is antenna gain?

• A. The increase in signal strength in a specified direction compared to a reference antenna
• B. The additional power that is added to the transmitter power
• C. The additional power that is required in the antenna when transmitting on a higher frequency
• D. The increase in impedance on receive or transmit compared to a reference antenna

T1D03

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

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

T7D04

15. Which instrument is used to measure electric current?

• A. An electrometer
• B. A voltmeter
• C. An ohmmeter
• D. An ammeter

T1A10

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

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

T2A09

17. Which of the following indicates that a station is listening on a repeater and looking for a contact?

• A. "CQ CQ" followed by the repeater's call sign
• B. The repeater call sign followed by the station's call sign
• C. "QSY" followed by your call sign
• D. The station's call sign followed by the word "monitoring"

T6B04

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

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

T2C06

19. 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 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
• D. A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies

T6C07

20. What is component 8 in figure T-2?

• A. Light emitting diode
• B. Inductor
• C. Resistor
• D. Regulator IC

T1F08

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

T5C01

22. What describes the ability to store energy in an electric field?

• A. Capacitance
• B. Inductance
• C. Resistance
• D. Tolerance

T0B08

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

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

T3B05

24. What is the relationship between wavelength and frequency?

• A. Wavelength and frequency are unrelated
• B. Wavelength and frequency increase as path length increases
• C. Wavelength gets shorter as frequency increases
• D. Wavelength gets longer as frequency increases

T1E10

25. 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. All these choices are correct
• C. Repeater operation
• D. Operating the station over the internet

T4A03

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

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

T8D13

27. What is FT8?

• A. An eight channel multiplex mode for FM repeaters
• B. A wideband FM voice mode
• C. A digital slow-scan TV mode with forward error correction and automatic color compensation
• D. A digital mode capable of low signal-to-noise operation

T7B05

28. How can fundamental overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

• A. Block the interfering signal with a filter on the amateur transmitter
• B. Switch the transmitter to a narrow-band mode
• C. Switch the transmitter from FM to SSB
• D. Block the amateur signal with a filter at the antenna input of the affected receiver

T9B04

29. What is the major function of an antenna tuner (antenna coupler)?

• A. It automatically selects the proper antenna for the frequency band being used
• B. It matches the antenna system impedance to the transceiver's output impedance
• C. It helps a receiver automatically tune in weak stations
• D. It allows an antenna to be used on both transmit and receive

T1B11

30. What is the maximum peak envelope power output for Technician class operators in their HF band segments?

• A. 10 watts
• B. 200 watts
• C. 50 watts
• D. 100 watts

T6D07

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

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

T8C11

32. What is an amateur radio station that connects other amateur stations to the internet?

• A. A repeater
• B. A digipeater
• C. A beacon
• D. A gateway

T8A04

33. Which type of modulation is commonly used for VHF and UHF voice repeaters?

• A. SSB
• B. FM or PM
• C. PSK
• D. AM

T8B11

34. Who may receive telemetry from a space station?

• A. A licensed radio amateur who has registered for an access code from AMSAT
• B. A licensed radio amateur who has been certified by the protocol developer
• C. Anyone
• D. A licensed radio amateur with a transmitter equipped for interrogating the satellite

T2B10

35. Which Q signal indicates that you are receiving interference from other stations?

• A. QRM
• B. QSB
• C. QTH
• D. QRN