Practice Exam

T5A03

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

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

T4B12

2. What is the result of tuning an FM receiver above or below a signal's frequency?

• A. Generation of a heterodyne tone
• B. Distortion of the signal's audio
• C. Change in audio pitch
• D. Sideband inversion

T2A04

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

• A. Say "CQ" three times, then the other station's call sign
• B. Say "break, break," then say the 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

T1C06

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

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

T1E06

5. When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

• A. When using a club station whose trustee holds an Amateur Extra Class license
• B. At no time
• C. When designated as the control operator by an Amateur Extra Class licensee
• D. As part of a multi-operator contest team

T7B05

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

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

T8D13

7. What is FT8?

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

T9B04

8. 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 allows an antenna to be used on both transmit and receive
• D. It helps a receiver automatically tune in weak stations

T8A01

9. Which of the following is a form of amplitude modulation?

• A. Phase shift keying (PSK)
• B. Spread spectrum
• C. Single sideband
• D. Packet radio

T9A02

10. Which of the following describes a type of antenna loading?

• A. Inserting a resistor in the radiating portion of the antenna to make it resonant
• B. Strengthening the radiating elements of a beam antenna to better resist wind damage
• C. Electrically lengthening by inserting inductors in radiating elements
• D. Installing a spring in the base of a mobile vertical antenna to make it more flexible

T0B06

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

• A. The height of the power line above ground
• 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. Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires

T7D07

12. Which of the following measurements are made using a multimeter?

• A. All these choices are correct
• B. Signal strength and noise
• C. Impedance and reactance
• D. Voltage and resistance

T2B08

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

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

T6D09

14. What is the name of a device that combines several semiconductors and other components into one package?

• A. Transformer
• B. Integrated circuit
• C. Multi-pole relay
• D. Transducer

T8C05

15. What is a grid locator?

• A. An instrument for radio direction finding
• B. An instrument for neutralizing a final amplifier
• C. A letter-number designator assigned to a geographic location
• D. A letter-number designator assigned to an azimuth and elevation

T5D08

16. What is the current through a 100-ohm resistor connected across 200 volts?

• A. 2 amperes
• B. 100 amperes
• C. 20,000 amperes
• D. 0.5 amperes

T6B08

17. What does the abbreviation FET stand for?

• A. Frequency Emission Transmitter
• B. Fast Electron Transistor
• C. Field Effect Transistor
• D. Free Electron Transmitter

T7A01

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

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

T1A08

19. Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

• A. Volunteer Frequency Coordinator recognized by local amateurs
• B. Frequency Spectrum Manager appointed by the FCC
• C. International Telecommunication Union
• D. FCC Regional Field Office

T7C05

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

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

T6C04

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

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

T0C02

22. At which of the following frequencies does maximum permissible exposure have the lowest value?

• A. 1296 MHz
• B. 3.5 MHz
• C. 50 MHz
• D. 440 MHz

T3A02

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

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

T4A06

24. What signals are used in a computer-radio interface for digital mode operation?

• A. Receive audio, transmit audio, and transmitter keying
• B. Receive and transmit mode, status, and location
• C. Antenna and RF power
• D. NMEA GPS location and DC power

T2C01

25. When do FCC rules NOT apply to the operation of an amateur station?

• A. When operating under special FEMA rules
• B. When operating under special ARES rules
• C. When operating a RACES station
• D. FCC rules always apply

T1F10

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

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

T0A10

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

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

T5C10

28. How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

• A. 4.8 watts
• B. 14.5 watts
• C. 0.208 watts
• D. 30 watts

T1D06

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

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

T1B10

30. Where may SSB phone be used in amateur bands above 50 MHz?

• A. Only in sub-bands allocated to General class or higher licensees
• B. In at least some segment of all these bands
• C. Only on repeaters
• D. On any band if the power is limited to 25 watts

T3B03

31. What are the two components of a radio wave?

• A. Ionizing and non-ionizing radiation
• B. Voltage and current
• C. Electric and magnetic fields
• D. Impedance and reactance

T5B09

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

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

T6A06

33. What type of electrical component stores energy in a magnetic field?

• A. Varistor
• B. Inductor
• C. Diode
• D. Capacitor

T3C05

34. Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

• A. Faraday rotation
• B. Quantum tunneling
• C. Knife-edge diffraction
• D. Doppler shift

T8B05

35. What is a satellite beacon?

• A. A reflective surface on the satellite
• B. A transmission from a satellite that contains status information
• C. The primary transmit antenna on the satellite
• D. An indicator light that shows where to point your antenna