Practice Exam

T7C08

1. Which instrument can be used to determine SWR?

• A. Ohmmeter
• B. Voltmeter
• C. Directional wattmeter
• D. Iambic pentameter

T5D10

2. What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

• A. 0.25 volts
• B. 2.5 volts
• C. 1 volt
• D. 1.5 volts

T5A02

3. Electrical power is measured in which of the following units?

• A. Volts
• B. Watt-hours
• C. Watts
• D. Amperes

T2A03

4. What is a common repeater frequency offset in the 70 cm band?

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

T1D01

5. With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

• A. Any country banned from making such communications by the American Radio Relay League (ARRL)
• B. Any country banned from such communications by the International Amateur Radio Union (IARU)
• C. Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications
• D. Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications

T8B02

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

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

T4B02

7. Which of the following can be used to enter a transceiver's operating frequency?

• A. All these choices are correct
• B. The CTCSS or DTMF encoder
• C. The Automatic Frequency Control
• D. The keypad or VFO knob

T9A09

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

• A. 112
• B. 236
• C. 50
• D. 6

T0A07

9. Where should a lightning arrester be installed in a coaxial feed line?

• A. At the ac power service panel
• B. At the antenna feed point
• C. At the output connector of a transceiver
• D. On a grounded panel near where feed lines enter the building

T5B06

10. Which is equal to 3000 milliamperes?

• A. 3 amperes
• B. 3,000,000 amperes
• C. 0.003 amperes
• D. 0.3 amperes

T7A05

11. What is the name of a circuit that generates a signal at a specific frequency?

• A. Oscillator
• B. Reactance modulator
• C. Phase modulator
• D. Low-pass filter

T8A12

12. Which of the following is a disadvantage of FM compared with single sideband?

• A. All these choices are correct
• B. FM signals are harder to tune
• C. Voice quality is poorer
• D. Only one signal can be received at a time

T7D08

13. Which of the following types of solder should not be used for radio and electronic applications?

• A. Rosin-core solder
• B. Lead-tin solder
• C. Acid-core solder
• D. Tin-copper solder

T3A06

14. What is the meaning of the term "picket fencing"?

• A. Local vs long-distance communications
• B. A type of ground system used with vertical antennas
• C. Alternating transmissions during a net operation
• D. Rapid flutter on mobile signals due to multipath propagation

T6C12

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

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

T3C08

16. What causes tropospheric ducting?

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

T2B04

17. Which of the following could be the reason you are unable to access a repeater whose output you can hear?

• A. You are using the wrong DCS code
• B. All these choices are correct
• C. You are using the wrong CTCSS tone
• D. Improper transceiver offset

T7B05

18. How can fundamental overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

• A. Switch the transmitter to a narrow-band mode
• B. Block the amateur signal with a filter at the antenna input of the affected receiver
• C. Switch the transmitter from FM to SSB
• D. Block the interfering signal with a filter on the amateur transmitter

T6A09

19. What electrical component is used to protect other circuit components from current overloads?

• A. Varactor
• B. All these choices are correct
• C. Thyratron
• D. Fuse

T1E05

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

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

T9B04

21. What is the major function of an antenna tuner (antenna coupler)?

• A. It automatically selects the proper antenna for the frequency band being used
• B. It allows an antenna to be used on both transmit and receive
• C. It helps a receiver automatically tune in weak stations
• D. It matches the antenna system impedance to the transceiver's output impedance

T8D02

22. 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 net that meets at a specified time
• C. A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
• D. A group of operators sharing common interests

T1C03

23. What types of international communications are an FCC-licensed amateur radio station permitted to make?

• A. Only communications incidental to contest exchanges; all other communications are prohibited
• B. Any communications that would be permitted by an international broadcast station
• C. Communications incidental to the purposes of the Amateur Radio Service and remarks of a personal character
• D. Communications incidental to conducting business or remarks of a personal nature

T6D11

24. Which of the following is a resonant or tuned circuit?

• A. An inductor and a capacitor in series or parallel
• B. A linear voltage regulator
• C. A circuit designed to provide high-fidelity audio
• D. A resistor circuit used for reducing standing wave ratio

T8C06

25. How is over the air access to IRLP nodes accomplished?

• A. By obtaining a password that is sent via voice to the node
• B. By using CTCSS tone codes
• C. By entering the proper internet password
• D. By using DTMF signals

T1B04

26. Which amateur band includes 146.52 MHz?

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

T2C04

27. What is RACES?

• A. An international radio experimentation society
• B. A radio contest held in a short period, sometimes called a "sprint"
• C. An emergency organization combining amateur radio and citizens band operators and frequencies
• D. An FCC part 97 amateur radio service for civil defense communications during national emergencies

T3B08

28. What frequency range is referred to as VHF?

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

T1A11

29. When is willful interference to other amateur radio stations permitted?

• A. To stop another amateur station that is breaking the FCC rules
• B. At no time
• C. When making short test transmissions
• D. At any time, stations in the Amateur Radio Service are not protected from willful interference

T6B11

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

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

T5C10

31. How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

• A. 4.8 watts
• B. 14.5 watts
• C. 0.208 watts
• D. 30 watts

T0C04

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

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

T1F11

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

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

T4A04

34. How are the transceiver audio input and output connected in a station configured to operate using FT8?

• A. To a computer running a terminal program and connected to a terminal node controller unit
• B. To an FT8 conversion unit, a keyboard, and a computer monitor
• C. To a computer connected to the FT8converter.com website
• D. To the audio input and output of a computer running WSJT-X software

T0B04

35. Which of the following is an important safety precaution to observe when putting up an antenna tower?

• A. Wear a ground strap connected to your wrist at all times
• B. Insulate the base of the tower to avoid lightning strikes
• C. Look for and stay clear of any overhead electrical wires
• D. All these choices are correct