Practice Exam

T7D10

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

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

T7C07

2. What happens to power lost in a feed line?

• A. It is converted into heat
• B. It is radiated as harmonics
• C. It distorts the signal
• D. It increases the SWR

T8C07

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

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

T1B02

4. Which amateurs may contact the International Space Station (ISS) on VHF bands?

• A. Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
• B. Any amateur holding a General class or higher license who has applied for and received approval from NASA
• C. Any amateur holding a Technician class or higher license
• D. Any amateur holding a General class or higher license

T5C11

5. How much current is required to deliver 120 watts at a voltage of 12 volts DC?

• A. 12 amperes
• B. 10 amperes
• C. 0.1 amperes
• D. 132 amperes

T1C01

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

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

T0A03

7. In the United States, what circuit does black wire insulation indicate in a three-wire 120 V cable?

• A. Equipment ground
• B. Black insulation is never used
• C. Hot
• D. Neutral

T1A06

8. What is the FCC Part 97 definition of a beacon?

• A. A continuous transmission of weather information authorized in the amateur bands by the National Weather Service
• B. A bulletin sent by the FCC to announce a national emergency
• C. A government transmitter marking the amateur radio band edges
• D. An amateur station transmitting communications for the purposes of observing propagation or related experimental activities

T5D14

9. In which type of circuit is voltage the same across all components?

• A. Series
• B. Resonant
• C. Parallel
• D. Branch

T6A06

10. What type of electrical component stores energy in a magnetic field?

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

T1D08

11. In which of the following circumstances may the control operator of an amateur station receive compensation for operating that station?

• A. When the communication is related to the sale of amateur equipment by the control operator's employer
• B. All these choices are correct
• C. When the communication is incidental to classroom instruction at an educational institution
• D. When the communication is made to obtain emergency information for a local broadcast station

T4B08

12. What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

• A. Permits monitoring several modes at once by selecting a separate filter for each mode
• B. Permits noise or interference reduction by selecting a bandwidth matching the mode
• C. Increases the amount of offset between receive and transmit frequencies
• D. Increases the number of frequencies that can be stored in memory

T3B10

13. What frequency range is referred to as HF?

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

T3C05

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

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

T1F05

15. What method of call sign identification is required for a station transmitting phone signals?

• A. Send the call sign followed by the indicator R
• B. Send the call sign followed by the indicator RPT
• C. Send the call sign using a CW or phone emission
• D. Send the call sign using only a phone emission

T5A03

16. What is the name for the flow of electrons in an electric circuit?

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

T2C11

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

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

T5B13

18. Which is equal to 2425 MHz?

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

T9A09

19. What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

• A. 112
• B. 236
• C. 50
• D. 6

T1E04

20. 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 frequencies printed on the license grant
• C. The class of operator license held by the control operator
• D. The frequency authorized by the frequency coordinator

T6C04

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

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

T2A09

22. Which of the following indicates that a station is listening on a repeater and looking for a contact?

• A. "CQ CQ" followed by the repeater's call sign
• B. "QSY" followed by your call sign
• C. The repeater call sign followed by the station's call sign
• D. The station's call sign followed by the word "monitoring"

T4A09

23. How can you determine the length of time that equipment can be powered from a battery?

• A. Divide the watt-hour rating of the battery by the peak power consumption of the equipment
• B. Multiply the square of the current rating of the battery by the input resistance of the equipment
• C. Divide the battery ampere-hour rating by the average current draw of the equipment
• D. Multiply the watts per hour consumed by the equipment by the battery power rating

T9B01

24. What is a benefit of low SWR?

• A. Reduced signal loss
• B. Reduced television interference
• C. All these choices are correct
• D. Less antenna wear

T6B08

25. What does the abbreviation FET stand for?

• A. Free Electron Transmitter
• B. Field Effect Transistor
• C. Fast Electron Transistor
• D. Frequency Emission Transmitter

T0C08

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

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

T3A04

27. What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

• A. Nothing significant will happen
• B. The modulation sidebands might become inverted
• C. Received signal strength is reduced
• D. Signals have an echo effect

T7B02

28. What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

• A. The microphone gain of the transmitter is turned up too high
• B. The receiver is unable to reject strong signals outside the AM or FM band
• C. The audio amplifier of the transmitter is overloaded
• D. The deviation of an FM transmitter is set too low

T2B02

29. What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

• A. Carrier squelch
• B. DTMF
• C. CTCSS
• D. Tone burst

T8B09

30. What causes spin fading of satellite signals?

• A. Interfering signals within the satellite uplink band
• B. Doppler shift of the received signal
• C. Circular polarized noise interference radiated from the sun
• D. Rotation of the satellite and its antennas

T8D02

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

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

T8A10

32. What is the approximate bandwidth of AM fast-scan TV transmissions?

• A. About 6 MHz
• B. About 1 MHz
• C. More than 10 MHz
• D. About 3 MHz

T7A04

33. Which term describes the ability of a receiver to discriminate between multiple signals?

• A. Sensitivity
• B. Selectivity
• C. Discrimination ratio
• D. Harmonic distortion

T0B05

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

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

T6D08

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

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