Practice Exam

T2B06

1. What type of signaling to a repeater uses two simultaneous audio tones?

• A. GMRS
• B. DTMF
• C. CTCSS
• D. D-STAR

T5D02

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

• A. E = I x R
• B. E = I / R
• C. E = I2 x R
• D. E = I2 / R

T7C03

3. What does a typical RF dummy load consist of?

• A. A 50-ohm non-inductive resistor mounted on a heat sink
• B. A low-voltage power supply and a DC relay
• C. A low-voltage power supply and an AC relay
• D. A 50-ohm inductive reactance mounted in a shielded enclosure

T3A09

4. Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

• A. FM voice is unusable
• B. Digital modes are unusable
• C. Both the transmitting and receiving antennas must be of the same polarization
• D. Either vertically or horizontally polarized antennas may be used for transmission or reception

T6D02

5. What is a relay?

• A. An electrically-controlled switch
• B. An inverting amplifier
• C. A pass transistor
• D. A current-controlled amplifier

T8C03

6. What operating activity involves contacting as many stations as possible during a specified period?

• A. Simulated emergency exercises
• B. Hidden transmitter hunts
• C. Net operations
• D. Contesting

T8D12

7. Which of the following best describes an amateur radio mesh network?

• A. An internet linking protocol allowing communication through repeaters around the world
• B. An amateur-radio data network using commercial Wi-Fi equipment with modified firmware
• C. A wide-bandwidth digital voice mode employing DMR protocols
• D. An amateur-radio satellite communications network using modified commercial satellite TV hardware

T5C02

8. What is the unit of capacitance?

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

T7B06

9. Which of the following actions should you take if a neighbor tells you that your station's transmissions are interfering with their radio or TV reception?

• A. Immediately turn off your transmitter and contact the nearest FCC office for assistance
• B. Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
• C. All these choices are correct
• D. Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel

T9B08

10. Which of the following is a source of loss in coaxial feed line?

• A. High SWR
• B. Water intrusion into coaxial connectors
• C. Multiple connectors in the line
• D. All these choices are correct

T1B10

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

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

T7A02

12. What is a transceiver?

• A. A device for converting receiver and transmitter frequencies to another band
• B. A device for automatically sending and decoding Morse code
• C. A device for matching feed line impedance to 50 ohms
• D. A device that combines a receiver and transmitter

T5A01

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

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

T1D09

14. 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 broadcasting communications to or from the space shuttle
• C. When such communications are directly related to the immediate safety of human life or protection of property
• D. Where non-commercial programming is gathered and supplied exclusively to the National Public Radio network

T8B05

15. What is a satellite beacon?

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

T0A02

16. What health hazard is posed by electrical current flowing through the body?

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

T8A03

17. Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?

• A. DRM
• B. PM
• C. FM
• D. SSB

T3C03

18. What is one characteristic of VHF signals received via auroral backscatter?

• A. They are distorted, with a characteristic raspy sound
• B. They occur only during winter nighttime hours
• C. They are generally strongest when your antenna is aimed west
• D. They are often received from 10,000 miles or more

T2C02

19. Which of the following are typical duties of a Net Control Station?

• A. Ensure that all stations checking into the net are properly licensed for operation on the net frequency
• B. Choose the regular net meeting time and frequency
• C. Call the net to order and direct communications between stations checking in
• D. All these choices are correct

T6B06

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

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

T4A05

21. Where should an RF power meter be installed?

• A. In the feed line, between the transmitter and antenna
• B. In parallel with the push-to-talk line and the antenna
• C. In the power supply cable, as close as possible to the radio
• D. At the power supply output

T3B08

22. What frequency range is referred to as VHF?

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

T0C06

23. Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

• A. By calculation based on computer modeling
• B. By measurement of field strength using calibrated equipment
• C. By calculation based on FCC OET Bulletin 65
• D. All these choices are correct

T1E07

24. When the control operator is not the station licensee, who is responsible for the proper operation of the station?

• A. Only the station licensee
• B. The control operator and the station licensee
• C. Only the control operator
• D. All licensed amateurs who are present at the operation

T9A01

25. What is a beam antenna?

• A. An antenna that concentrates signals in one direction
• B. An antenna built from square aluminum beams
• C. An antenna that focuses the signal into two intense rays
• D. An omnidirectional antenna invented by Clarence Beam

T4B04

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

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

T6C05

27. What is component 4 in figure T-1?

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

T5B07

28. Which is equal to 3.525 MHz?

• A. 3525 kHz
• B. 35.25 kHz
• C. 3,525,000 kHz
• D. 0.003525 kHz

T1C07

29. How long before the expiration date may an amateur radio license renewal be requested?

• A. 90 days
• B. 1 year
• C. 6 months
• D. 30 days

T7D10

30. What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

• A. Steady full-scale reading
• B. Increasing resistance with time
• C. Decreasing resistance with time
• D. Alternating between open and short circuit

T0B09

31. Why should you avoid attaching an antenna to a utility pole?

• A. All these choices are correct
• B. The antenna will not work properly because of induced voltages
• C. The antenna may unbalance the power transformer, causing power fluctuations
• D. The antenna could contact high-voltage power lines

T1A02

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

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

T6A02

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

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

T1F03

34. When are you required to transmit your assigned call sign?

• A. At the beginning of each contact, and every 10 minutes thereafter
• B. At least every 10 minutes during and at the end of a communication
• C. At least every 15 minutes during and at the end of a communication
• D. At least once during each transmission

T2A03

35. What is a common repeater frequency offset in the 70-centimeter band?

• A. Plus or minus 600 kHz
• B. Plus or minus 500 kHz
• C. Plus or minus 1 MHz
• D. Plus or minus 5 MHz