Practice Exam

T5A10

1. Which term describes the rate at which electrical energy is used?

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

T8B08

2. What does it mean if a satellite is operating in U/V mode?

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

T1B04

3. Which amateur band includes 146.52 MHz?

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

T1E10

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

• A. Operating the station over the internet
• B. Earth-Moon-Earth (EME) communication
• C. Controlling a model aircraft, boat, or car by amateur radio
• D. A software defined radio (SDR)

T5D10

5. What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

• A. 1 volt
• B. 2.5 volts
• C. 0.25 volts
• D. 1.5 volts

T5B13

6. Which is equal to 2425 MHz?

• A. 242.5 GHz
• B. 0.002425 GHz
• C. 2.425 GHz
• D. 24.25 GHz

T0C13

7. Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

• A. The station licensee
• B. The local zoning board
• C. The FCC
• D. Anyone who is near an antenna

T3C06

8. What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

• A. Tropospheric ducting
• B. F2 region refraction
• C. D region refraction
• D. Faraday rotation

T1F10

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

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

T2A07

10. What does the term "repeater offset" mean?

• A. The approximately half-second delay to allow for the "squelch tail" to be removed
• B. The fee charged by the repeater owner or club to provide for maintenance
• C. The repeater has a time delay to prevent interference
• D. The difference between a repeater's transmit and receive frequencies

T7C06

11. What does an SWR reading of 4:1 indicate?

• A. Good impedance match
• B. Gain of +4 dB
• C. Impedance mismatch
• D. Loss of -4 dB

T0B07

12. Which of the following is an important safety rule to remember when using a crank-up tower?

• A. This type of tower must never be grounded
• B. This type of tower must never be painted
• C. All these choices are correct
• D. This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed

T6D06

13. What component changes 120 V AC power to a lower AC voltage for other uses?

• A. Transistor
• B. Variable capacitor
• C. Diode
• D. Transformer

T7D08

14. Which of the following types of solder should not be used for radio and electronic applications?

• A. Tin-copper solder
• B. Lead-tin solder
• C. Rosin-core solder
• D. Acid-core solder

T6A03

15. What electrical parameter is controlled by a potentiometer?

• A. Field strength
• B. Inductance
• C. Resistance
• D. Capacitance

T3A03

16. What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

• A. Left-hand circular
• B. Right-hand circular
• C. Vertical
• D. Horizontal

T9A05

17. Which of the following increases the resonant frequency of a dipole antenna?

• A. Adding capacitive loading to the ends of the radiating wires
• B. Inserting coils in series with radiating wires
• C. Lengthening it
• D. Shortening it

T1A09

18. Who selects a Frequency Coordinator?

• A. The local chapter of the Office of National Council of Independent Frequency Coordinators
• B. Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
• C. The FCC Office of Spectrum Management and Coordination Policy
• D. The FCC Regional Field Office

T8D10

19. Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

• A. Weak signal propagation beacons
• B. Earth-Moon-Earth
• C. Meteor scatter
• D. All these choices are correct

T4B04

20. What does an FM signal sound like when received slightly off frequency?

• A. The audio becomes distorted
• B. There is no effect except for reduction in amplitude
• C. The audio decrease in pitch
• D. The audio increases in pitch

T0A08

21. Where should a fuse or circuit breaker be installed in a 120V AC power circuit?

• A. In series with the hot and neutral conductors
• B. In parallel with the hot and neutral conductors
• C. In series with the hot conductor only
• D. In parallel with the hot conductor only

T2B12

22. What is the digital color code used on DMR repeater systems?

• A. A code which automatically programs the repeater offset to a frequency chosen by the user
• B. An access code which must be programmed into a DMR transmitter to access a specific repeater
• C. A code transmitted by the repeater to indicate health and status of the equipment
• D. A code which identifies the specific CODEC being used so that the repeater can properly decode the audio

T8C07

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

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

T4A01

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

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

T1C01

25. For which classes of amateur radio licenses does the FCC currently issue new licenses?

• A. Novice, Technician, General, Amateur Extra
• B. Novice, Technician Plus, General, Advanced
• C. Technician, General, Amateur Extra
• D. Technician, Technician Plus, General, Amateur Extra

T1D09

26. When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

• A. Never
• B. When such communications are directly related to the immediate safety of human life or protection of property
• C. Where non-commercial programming is gathered and supplied exclusively to the National Public Radio network
• D. When broadcasting communications to or from the space shuttle

T9B08

27. 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

T6B09

28. What are the names for the electrodes of a diode?

• A. Gate and base
• B. Source and drain
• C. Plus and minus
• D. Anode and cathode

T7A08

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

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

T8A04

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

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

T3B05

31. What is the relationship between wavelength and frequency?

• A. Wavelength and frequency increase as path length increases
• B. Wavelength gets shorter as frequency increases
• C. Wavelength is constant at all frequencies
• D. Wavelength gets longer as frequency increases

T5C02

32. What is the unit of capacitance?

• A. Volt
• B. Farad
• C. Henry
• D. Ohm

T7B09

33. What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

• A. Add a low-pass filter to the TV antenna input
• B. Be sure all TV feed line coaxial connectors are installed properly
• C. Add a high-pass filter to the TV antenna input
• D. Add a preamplifier to the TV antenna input

T6C12

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

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

T2C12

35. Which of the following requires certification by a civil defense agency?

• A. RACES
• B. SKYWARN
• C. MARS
• D. ARES