Practice Exam

T8D06

1. What does the abbreviation "PSK" mean?

• A. Phase Shift Keying
• B. Packet Short Keying
• C. Phased Slide Keying
• D. Pulse Shift Keying

T9B08

2. 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

T5C09

3. How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

• A. 23.8 watts
• B. 0.7 watts
• C. 138 watts
• D. 3.8 watts

T6D02

4. What is a relay?

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

T7B03

5. Which of the following can cause radio frequency interference?

• A. Fundamental overload
• B. Harmonics
• C. Spurious emissions
• D. All these choices are correct

T0A08

6. Where should a fuse or circuit breaker be installed in a 120V AC power circuit?

• A. In parallel with the hot conductor only
• B. In series with the hot and neutral conductors
• C. In parallel with the hot and neutral conductors
• D. In series with the hot conductor only

T1E03

7. Who must designate the station control operator?

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

T0C04

8. What factors affect the RF exposure of people near an amateur station antenna?

• A. Frequency and power level of the RF field
• B. Distance from the antenna to a person
• C. All these choices are correct
• D. Radiation pattern of the antenna

T0B01

9. Which of the following is good practice when installing ground wires on a tower for lightning protection?

• A. Put a drip loop in the ground connection to prevent water damage to the ground system
• B. Make sure all ground wire bends are right angles
• C. Ensure that connections are short and direct
• D. All these choices are correct

T2C09

10. Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

• A. No
• B. Yes, but only when part of a FEMA emergency plan
• C. Yes, but only in situations involving the immediate safety of human life or protection of property
• D. Yes, but only when part of a RACES emergency plan

T7C01

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

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

T5D11

12. What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

• A. 9 volts
• B. 10 volts
• C. 1 volt
• D. 11 volts

T6A02

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

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

T3A02

14. What is the effect of vegetation on UHF and microwave signals?

• A. Knife-edge diffraction
• B. Absorption
• C. Amplification
• D. Polarization rotation

T1F01

15. When must the station and its records be available for FCC inspection?

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

T7D03

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

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

T4B05

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

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

T3C08

18. What causes tropospheric ducting?

• A. Discharges of lightning during electrical storms
• B. Temperature inversions in the atmosphere
• C. Sunspots and solar flares
• D. Updrafts from hurricanes and tornadoes

T3B06

19. What is the formula for converting frequency to approximate wavelength in meters?

• A. Wavelength in meters equals frequency in hertz divided by 300
• B. Wavelength in meters equals frequency in megahertz divided by 300
• C. Wavelength in meters equals frequency in hertz multiplied by 300
• D. Wavelength in meters equals 300 divided by frequency in megahertz

T4A07

20. Which of the following connections is made between a computer and a transceiver to use computer software when operating 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

T1A10

21. What is the Radio Amateur Civil Emergency Service (RACES)?

• A. All these choices are correct
• B. An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization
• C. A radio service using amateur frequencies for emergency management or civil defense communications
• D. A radio service using amateur stations for emergency management or civil defense communications

T5B11

22. Which decibel value represents a power increase from 20 watts to 200 watts?

• A. 28 dB
• B. 10 dB
• C. 18 dB
• D. 12 dB

T7A02

23. What is a transceiver?

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

T8A04

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

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

T2B07

25. How can you join a digital repeater's "talkgroup"?

• A. Join the repeater owner's club
• B. Register your radio with the local FCC office
• C. Sign your call after the courtesy tone
• D. Program your radio with the group's ID or code

T5A05

26. What is the electrical term for the force that causes electron flow?

• A. Capacitance
• B. Ampere-hours
• C. Voltage
• D. Inductance

T8B07

27. What is Doppler shift in reference to satellite communications?

• A. A mode where the satellite receives signals on one band and transmits on another
• B. An observed change in signal frequency caused by relative motion between the satellite and Earth station
• C. A special digital communications mode for some satellites
• D. A change in the satellite orbit

T1D11

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

• A. When the transmissions are unmodulated
• B. When transmitting signals to control model craft
• C. When the transmissions are of a brief nature to make station adjustments
• D. When the transmitted power level is below 1 watt

T1B02

29. 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
• C. Any amateur holding a Technician class or higher license
• D. Any amateur holding a General class or higher license who has applied for and received approval from NASA

T6C12

30. Which of the following is accurately represented in electrical schematics?

• A. Component connections
• B. Wire lengths
• C. All these choices are correct
• D. Physical appearance of components

T6B12

31. What are the names of the electrodes of a bipolar junction transistor?

• A. Emitter, base, collector
• B. Input, output, supply
• C. Signal, bias, power
• D. Pole one, pole two, output

T1C08

32. What is the normal term for an FCC-issued amateur radio license?

• A. Life
• B. Ten years
• C. Eight years
• D. Five years

T9A10

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

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

T8C10

34. What is required before using the EchoLink system?

• A. All these choices are correct
• B. Purchase a license to use the EchoLink software
• C. Complete the required EchoLink training
• D. Register your call sign and provide proof of license

T2A08

35. What is the meaning of the procedural signal "CQ"?

• A. Test transmission, no reply expected
• B. Call on the quarter hour
• C. Calling any station
• D. Only the called station should transmit