Practice Exam

T1D07

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

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

T8D02

2. What is a "talkgroup" on a DMR repeater?

• A. A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
• B. A way for groups of users to share a channel at different times without hearing other users on the channel
• C. A group of operators sharing common interests
• D. A net that meets at a specified time

T1C10

3. How soon after passing the examination for your first amateur radio license may you transmit on the amateur radio bands?

• A. As soon as your operator/station license grant appears on the ARRL website
• B. Immediately on receiving your Certificate of Successful Completion of Examination (CSCE)
• C. As soon as your operator/station license grant appears in the FCC's license database
• D. As soon as you receive your license in the mail from the FCC

T8C08

4. What is the Internet Radio Linking Project (IRLP)?

• A. A technique for measuring signal strength of an amateur transmitter via the internet
• B. A technique to connect amateur radio systems, such as repeaters, via the internet using Voice Over Internet Protocol (VoIP)
• C. A system for informing amateurs in real time of the frequency of active DX stations
• D. A system for providing access to websites via amateur radio

T2B13

5. What is the purpose of a squelch function?

• A. Reduce interference from impulse noise
• B. Reduce a CW transmitter's key clicks
• C. Mute the receiver audio when a signal is not present
• D. Eliminate parasitic oscillations in an RF amplifier

T5C07

6. What is the abbreviation for megahertz?

• A. MHz
• B. mh
• C. MH
• D. Mhz

T0C13

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

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

T2A06

8. Which of the following is required when making on-the-air test transmissions?

• A. Conduct tests only between 10 p.m. and 6 a.m. local time
• B. All these choices are correct
• C. Identify the transmitting station
• D. Notify the FCC of the transmissions

T1F07

9. Which of the following restrictions apply when a non-licensed person is allowed to speak to a foreign station using a station under the control of a licensed amateur operator?

• A. The person must be a U.S. citizen
• B. The foreign station must be in a country with which the U.S. has a third party agreement
• C. All these choices are correct
• D. The licensed control operator must do the station identification

T4A01

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

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

T6D01

11. Which of the following devices or circuits changes an alternating current into a varying direct current signal?

• A. Reflector
• B. Rectifier
• C. Transformer
• D. Amplifier

T6C04

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

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

T4B05

13. What does the scanning function of an FM transceiver do?

• A. Checks incoming signal deviation
• B. Prevents interference to nearby repeaters
• C. Checks for messages left on a digital bulletin board
• D. Tunes through a range of frequencies to check for activity

T3B02

14. What property of a radio wave defines its polarization?

• A. The ratio of the velocity to the wavelength
• B. The orientation of the magnetic field
• C. The ratio of the energy in the magnetic field to the energy in the electric field
• D. The orientation of the electric field

T7A07

15. What is the function of a transceiver's PTT input?

• A. Input for a key used to send CW
• B. Switches transceiver from receive to transmit when grounded
• C. Provides a transmit tuning tone when grounded
• D. Input for a preamplifier tuning tone

T3A12

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

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

T5D08

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

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

T5B13

18. Which is equal to 2425 MHz?

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

T2C11

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

• A. The number of words or word equivalents in the text portion of the message
• B. A box on the message form that indicates that the message was received and/or relayed
• C. A list of stations that have relayed the message
• D. The call sign of the originating station

T7B09

20. 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 preamplifier to the TV antenna input
• D. Add a high-pass filter to the TV antenna input

T7D07

21. 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

T8A04

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

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

T0A02

23. What health hazard is presented by electrical current flowing through the body?

• A. It may cause injury by heating tissue
• B. It may cause involuntary muscle contractions
• C. All these choices are correct
• D. It may disrupt the electrical functions of cells

T9B04

24. 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

T1B05

25. How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

• A. Spread spectrum only
• B. Fixed digital message forwarding systems only
• C. Emergency traffic only
• D. Fast-scan television only

T0B05

26. What is the purpose of a safety wire through a turnbuckle used to tension guy lines?

• A. Prevent loosening of the turnbuckle from vibration
• B. Provide an ability to measure for proper tensioning
• C. Provide a ground path for lightning strikes
• D. Secure the guy line if the turnbuckle breaks

T1A02

27. Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

• A. Homeland Security
• B. FEMA
• C. The FCC
• D. All these choices are correct

T7C01

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

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

T1E04

29. What determines the transmitting frequency privileges of an amateur station?

• A. The highest class of operator license held by anyone on the premises
• B. The class of operator license held by the control operator
• C. The frequency authorized by the frequency coordinator
• D. The frequencies printed on the license grant

T6A01

30. What electrical component opposes the flow of current in a DC circuit?

• A. Resistor
• B. Inverter
• C. Inductor
• D. Transformer

T8B06

31. Which of the following are inputs to a satellite tracking program?

• A. The Keplerian elements
• B. All these choices are correct
• C. The last observed time of zero Doppler shift
• D. The satellite transmitted power

T9A01

32. What is a beam antenna?

• A. An antenna that reverses the phase of received signals
• B. An omnidirectional antenna invented by Clarence Beam
• C. An antenna that concentrates signals in one direction
• D. An antenna built from aluminum I-beams

T6B03

33. Which of these components can be used as an electronic switch?

• A. Varistor
• B. Transistor
• C. Potentiometer
• D. Thermistor

T3C02

34. What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

• A. HF accommodates wider bandwidth signals
• B. There is less atmospheric interference (static) on HF
• C. Long-distance ionospheric propagation is far more common on HF
• D. HF antennas are generally smaller

T5A07

35. Why are metals generally good conductors of electricity?

• A. They have many free electrons
• B. They have many free protons
• C. They have relatively high density
• D. All these choices are correct