Practice Exam

T3B02

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

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

T1A06

2. On which of the following HF frequencies can automatically controlled amateur propagation beacons be found?

• A. In a specific portion of each of the HF Technician bands
• B. Anywhere in the Technician portion of 10 meters
• C. On ten meters, between 28.200 MHz and 28.300 MHz
• D. Anywhere, if they are registered with the FCC

T7C05

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

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

T5A07

4. Why are metals generally good conductors of electricity?

• A. They have relatively high density
• B. They have relatively high Young's modulus values
• C. They have many free electrons
• D. They have many free protons

T8D01

5. Which of the following is a digital communications mode?

• A. Packet radio
• B. IEEE 802.11
• C. FT8
• D. All these choices are correct

T0B06

6. 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 within 10 feet of 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

T2B01

7. What is the purpose of the reverse function on a VHF/UHF transceiver?

• A. To listen on a repeater's input frequency
• B. To reduce power output
• C. To increase power output
• D. To listen on a repeater's output frequency

T6A07

8. What electrical component is typically constructed as a coil of wire?

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

T3A10

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

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

T8A01

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

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

T6B02

11. What electronic component allows current to flow in only one direction?

• A. Fuse
• B. Resistor
• C. Diode
• D. Driven element

T7A08

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

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

T0A02

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

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

T6C10

14. What is component 3 in figure T-3?

• A. Variable capacitor
• B. Connector
• C. Variable inductor
• D. Meter

T1B04

15. Which amateur band includes 146.52 MHz?

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

T1E02

16. Who may be the control operator of a station communicating through an amateur satellite or space station?

• A. A General class or higher licensee with a satellite operator certification
• B. Only an Amateur Extra Class operator
• C. Any amateur allowed to transmit on the satellite uplink frequency
• D. Only an Amateur Extra Class operator who is also an AMSAT member

T0C08

17. Which of the following actions can reduce exposure to RF radiation?

• A. Increase the duty cycle
• B. Relocate antennas
• C. Relocate the transmitter
• D. All these choices are correct

T8B02

18. What is the impact of using excessive effective radiated power on a satellite uplink?

• A. Possibility of commanding the satellite to an improper mode
• B. Possibility of rebooting the satellite control computer
• C. Overloading the satellite batteries
• D. Blocking access by other users

T7D06

19. Which of the following can damage a multimeter?

• A. Failing to connect one of the probes to ground
• B. Attempting to measure voltage when using the resistance setting
• C. Attempting to measure resistance using the voltage setting
• D. Not allowing it to warm up properly

T2A01

20. What is a common repeater frequency offset in the 2-meter band?

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

T8C03

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

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

T4A07

22. Which of the following is one of the connections required between a computer and a transceiver to operate digital modes?

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

T7B11

23. Which of the following can eliminate distorted voice transmissions?

• A. Turning the radio on and off to reset the computer-controlled circuitry
• B. Turning the squelch control fully clockwise to prevent the transmitted signal from triggering the squelch circuit
• C. Adding extra feedline to the antenna to lower SWR
• D. Adding a clip-on ferrite "choke" to the microphone cable to prevent the transmitted signal from feeding back into the transmitter

T6D07

24. Which of the following is commonly used as a visual indicator?

• A. Zener diode
• B. LED
• C. FET
• D. All these choices are correct

T5B04

25. Which is equal to one microvolt?

• A. One thousand kilovolts
• B. One one-millionth of a volt
• C. One million volts
• D. One one-thousandth of a volt

T9A10

26. In which direction does a half-wave dipole antenna radiate the strongest signal?

• A. In the direction of the feed line
• B. Broadside to the antenna
• C. Off the ends of the antenna
• D. Equally in all directions

T1D11

27. When may an amateur station transmit without identifying on the air?

• A. When the transmissions are of a brief nature to make station adjustments
• B. When the transmitted power level is below 0.1 watt
• C. When the transmissions are unmodulated
• D. When transmitting signals to control model craft

T1C10

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

T2C05

29. What does the term "traffic" refer to in net operation?

• A. Formal messages exchanged by net stations
• B. A count of the number of activations of the net each month
• C. The number of stations checking in and out of a net
• D. Operation by mobile or portable stations

T4B11

30. Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

• A. Your call sign
• B. The codec type being used
• C. All these choices are correct
• D. Your output power

T5D06

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

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

T1F01

32. When must the station licensee make the station and the station records available for inspection?

• A. Only when presented with a valid warrant by an FCC official or government agent
• B. At any time after a written notification by the FCC of such inspection
• C. At any time upon request by an FCC representative
• D. At any time ten days after notification by the FCC of such an inspection

T5C02

33. What is the unit of capacitance?

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

T9B08

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

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

T3C03

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

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