Practice Exam

T5D06

1. What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

• A. 8 ohms
• B. 3 ohms
• C. 48 ohms
• D. 16 ohms

T7D03

2. When configured to measure current, how is a multimeter connected to a component?

• A. In series
• B. In quadrature
• C. In parallel
• D. In phase

T1D03

3. 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. Only when transmitting certain approved digital codes
• C. Never
• D. Only during contests

T6A12

4. What type of switch is represented by component 3 in figure T-2?

• A. Single-pole double-throw
• B. Double-pole single-throw
• C. Single-pole single-throw
• D. Double-pole double-throw

T8D03

5. What kind of data can be transmitted by APRS?

• A. All these choices are correct
• B. GPS position data
• C. Weather data
• D. Text messages

T6C06

6. What is component 6 in figure T-2?

• A. Resistor
• B. Transistor
• C. Regulator IC
• D. Capacitor

T6B06

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

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

T0C01

8. What type of radiation are radio signals?

• A. Ionizing radiation
• B. Alpha radiation
• C. Gamma radiation
• D. Non-ionizing radiation

T1B07

9. Which of the following VHF/UHF band segments are limited to CW only?

• A. 902.0 MHz to 902.1 MHz
• B. 50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz
• C. 219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
• D. All these choices are correct

T7B05

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

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

T5A01

11. Electrical current is measured in which of the following units?

• A. Ohms
• B. Amperes
• C. Watts
• D. Volts

T8A08

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

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

T4B06

13. Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

• A. The bandwidth selection
• B. The AGC or limiter
• C. The tone squelch
• D. The RIT or Clarifier

T5C05

14. What is the unit of impedance?

• A. The ampere
• B. The coulomb
• C. The ohm
• D. The volt

T0A05

15. Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

• A. All these choices are correct
• B. Excessive current could cause a fire
• C. The power supply ripple would greatly increase
• D. The larger fuse would be likely to blow because it is rated for higher current

T3B10

16. What frequency range is referred to as HF?

• A. 3 to 30 MHz
• B. 300 to 3000 MHz
• C. 30 to 300 MHz
• D. 300 to 3000 kHz

T2B09

17. Why are simplex channels designated in the VHF/UHF band plans?

• A. For contest operation
• B. So stations with simple transmitters can access the repeater without automated offset
• C. So stations within range of each other can communicate without tying up a repeater
• D. For working DX only

T9B05

18. What happens as the frequency of a signal in coaxial cable is increased?

• A. The characteristic impedance decreases
• B. The loss decreases
• C. The loss increases
• D. The characteristic impedance increases

T1E03

19. Who must designate the station control operator?

• A. The station licensee
• B. The frequency coordinator
• C. Any licensed operator
• D. The FCC

T3C05

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

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

T1A11

21. When is willful interference to other amateur radio stations permitted?

• A. When making short test transmissions
• B. To stop another amateur station that is breaking the FCC rules
• C. At any time, stations in the Amateur Radio Service are not protected from willful interference
• D. At no time

T8C04

22. Which of the following is good procedure when contacting another station in a contest?

• A. Send only the minimum information needed for proper identification and the contest exchange
• B. Sign only the last two letters of your call if there are many other stations calling
• C. Contact the station twice to be sure that you are in his log
• D. All these choices are correct

T4A07

23. Which of the following connections is made between a computer and a transceiver to use computer software when operating digital modes?

• A. Computer "line out" to transceiver speaker connector
• B. Computer "line out" to transceiver push-to-talk
• C. Computer "line in" to transceiver push-to-talk
• D. Computer "line in" to transceiver speaker connector

T3A10

24. What effect does multi-path propagation have on data transmissions?

• A. Transmission rates must be increased by a factor equal to the number of separate paths observed
• B. Transmission rates must be decreased by a factor equal to the number of separate paths observed
• C. No significant changes will occur if the signals are transmitted using FM
• D. Error rates are likely to increase

T8B11

25. Who may receive telemetry from a space station?

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

T2A04

26. 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. Wait for the station to call CQ, then answer
• C. Say the station's call sign, then identify with your call sign
• D. Say "break, break," then say the station's call sign

T7C04

27. What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

• A. 1:1
• B. 50:50
• C. Zero
• D. Full Scale

T0B06

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

• A. Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
• B. Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
• C. The height of the power line above ground
• D. 1/2 wavelength at the operating frequency

T2C01

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

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

T7A03

30. Which of the following is used to convert a signal from one frequency to another?

• A. Inverter
• B. Amplifier
• C. Mixer
• D. Phase splitter

T1C01

31. For which license classes are new licenses currently available from the FCC?

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

T9A05

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

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

T5B02

33. Which is equal to 1,500,000 hertz?

• A. 15 GHz
• B. 150 kHz
• C. 1500 MHz
• D. 1500 kHz

T6D08

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

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

T1F08

35. What is the definition of third party communications?

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