Practice Exam

T0C09

1. How can you make sure your station stays in compliance with RF safety regulations?

• A. By informing the FCC of any changes made in your station
• B. By making sure your antennas have low SWR
• C. By re-evaluating the station whenever an item in the transmitter or antenna system is changed
• D. All these choices are correct

T8D10

2. Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

• A. Weak signal propagation beacons
• B. Meteor scatter
• C. Earth-Moon-Earth
• D. All these choices are correct

T2C09

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

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

T7D01

4. Which instrument would you use to measure electric potential?

• A. An ammeter
• B. A wavemeter
• C. A voltmeter
• D. An ohmmeter

T0A05

5. Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

• A. All these choices are correct
• B. The power supply ripple would greatly increase
• C. Excessive current could cause a fire
• D. The larger fuse would be likely to blow because it is rated for higher current

T9A01

6. What is a beam antenna?

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

T1E05

7. What is an amateur station's control point?

• A. The mailing address of the station licensee
• B. The location of the station's transmitting apparatus
• C. The location of the station's transmitting antenna
• D. The location at which the control operator function is performed

T3A02

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

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

T8B02

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

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

T5B12

10. Which is equal to 28400 kHz?

• A. 28.400 kHz
• B. 2.800 MHz
• C. 284.00 MHz
• D. 28.400 MHz

T3C05

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

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

T3B07

12. In addition to frequency, which of the following is used to identify amateur radio bands?

• A. Traditional letter/number designators
• B. All these choices are correct
• C. The approximate wavelength in meters
• D. Channel numbers

T6A06

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

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

T7A11

14. Where is an RF preamplifier installed?

• A. Between the antenna and receiver
• B. At the output of the transmitter power amplifier
• C. At the output of the receiver audio amplifier
• D. Between the transmitter and the antenna tuner

T1D03

15. When is it permissible to transmit messages encoded to obscure their meaning?

• A. Only when transmitting certain approved digital codes
• B. Only during contests
• C. Only when transmitting control commands to space stations or radio control craft
• D. Never

T2B09

16. Why are simplex channels designated in the VHF/UHF band plans?

• A. So stations within range of each other can communicate without tying up a repeater
• B. So stations with simple transmitters can access the repeater without automated offset
• C. For contest operation
• D. For working DX only

T8C10

17. What is required before using the EchoLink system?

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

T5D14

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

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

T0B05

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

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

T1A10

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

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

T2A10

21. What is a band plan, beyond the privileges established by the FCC?

• A. A plan devised by a club to indicate frequency band usage
• B. A list of operating schedules
• C. A voluntary guideline for using different modes or activities within an amateur band
• D. A list of available net frequencies

T9B06

22. Which of the following RF connector types is most suitable for frequencies above 400 MHz?

• A. RS-213
• B. DB-25
• C. Type N
• D. UHF (PL-259/SO-239)

T1F11

23. Which of the following is a requirement for the issuance of a club station license grant?

• A. The club must have at least four members
• B. The club must be registered with the American Radio Relay League
• C. All these choices are correct
• D. The trustee must have an Amateur Extra Class operator license grant

T6B11

24. What is the term that describes a device's ability to amplify a signal?

• A. Gain
• B. Forward resistance
• C. On resistance
• D. Forward voltage drop

T6D07

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

• A. FET
• B. Zener diode
• C. Bipolar transistor
• D. LED

T4B07

26. What does a DMR "code plug" contain?

• A. The codec for digitizing audio
• B. Access information for repeaters and talkgroups
• C. Your call sign in CW for automatic identification
• D. The DMR software version

T7C09

27. Which of the following causes failure of coaxial cables?

• A. Rapid fluctuation in transmitter output power
• B. Moisture contamination
• C. Operation at 100% duty cycle for an extended period
• D. Solder flux contamination

T7B01

28. What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

• A. Talk louder into the microphone
• B. Talk farther away from the microphone
• C. Let the transceiver cool off
• D. Change to a higher power level

T6C01

29. What is the name of an electrical wiring diagram that uses standard component symbols?

• A. Flow chart
• B. Connector pinout
• C. Schematic
• D. Bill of materials

T1C02

30. Who may select a desired call sign under the vanity call sign rules?

• A. Any licensed amateur
• B. Only a licensed amateur with an Amateur Extra Class license
• C. Only a licensed amateur who has been licensed continuously for more than 10 years
• D. Only a licensed amateur with a General or Amateur Extra Class license

T8A05

31. Which of the following types of signal has the narrowest bandwidth?

• A. CW
• B. FM voice
• C. Slow-scan TV
• D. SSB voice

T5A09

32. Which of the following describes alternating current?

• A. Current that alternates between a positive direction and zero
• B. Current that alternates between a negative direction and zero
• C. Current that alternates between positive and negative directions
• D. All these answers are correct

T4A11

33. Where should the negative power return of a mobile transceiver be connected in a vehicle?

• A. To any metal part of the vehicle
• B. At the antenna mount
• C. At the 12 volt battery chassis ground
• D. Through the transceiver's mounting bracket

T1B03

34. Which frequency is in the 6 meter amateur band?

• A. 28.50 MHz
• B. 49.00 MHz
• C. 222.15 MHz
• D. 52.525 MHz

T5C07

35. What is the abbreviation for megahertz?

• A. MHz
• B. MH
• C. Mhz
• D. mh