Practice Exam

T7B05

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

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

T6A05

2. What type of electrical component consists of conductive surfaces separated by an insulator?

• A. Potentiometer
• B. Capacitor
• C. Resistor
• D. Oscillator

T8C09

3. Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

• A. IRLP
• B. EchoLink
• C. D-STAR
• D. DMR

T1B04

4. Which amateur band includes 146.52 MHz?

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

T1D05

5. When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

• A. Never
• B. When the equipment is not the personal property of either the station licensee, or the control operator, or their close relatives
• C. When no profit is made on the sale
• D. When selling amateur radio equipment and not on a regular basis

T1E03

6. Who must designate the station control operator?

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

T0B04

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

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

T7A09

8. What is the function of the SSB/CW-FM switch on a VHF power amplifier?

• A. Change the mode of the transmitted signal
• B. Change the frequency range of the amplifier to operate in the proper segment of the band
• C. Set the amplifier for proper operation in the selected mode
• D. Reduce the received signal noise

T5D09

9. What is the current through a 24-ohm resistor connected across 240 volts?

• A. 24,000 amperes
• B. 216 amperes
• C. 0.1 amperes
• D. 10 amperes

T2A04

10. What is an appropriate way to call another station on a repeater if you know the other station's call sign?

• A. Wait for the station to call CQ, then answer
• B. Say "break, break," then say the station's call sign
• C. Say the station's call sign, then identify with your call sign
• D. Say "CQ" three times, then the other station's call sign

T1C07

11. Which of the following can result in revocation of the station license or suspension of the operator license?

• A. Failure to obtain FCC type acceptance prior to using a home-built transmitter
• B. Failure to have a copy of your license available at your station
• C. Failure to inform the FCC of any changes in the amateur station following performance of an RF safety environmental evaluation
• D. Failure to provide and maintain a correct email address with the FCC

T1A07

12. What is the FCC Part 97 definition of a space station?

• A. A manned satellite orbiting Earth
• B. Any satellite orbiting Earth
• C. An amateur station located more than 50 km above Earth's surface
• D. An amateur station using amateur radio satellites for relay of signals

T4B09

13. How is a specific group of stations selected on a digital voice transceiver?

• A. By enabling the group's CTCSS tone
• B. By retrieving the frequencies from transceiver memory
• C. By activating automatic identification
• D. By entering the group's identification code

T5A11

14. What type of current flow is opposed by resistance?

• A. Alternating current
• B. Direct current
• C. All these choices are correct
• D. RF current

T6C01

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

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

T6D04

16. Which of the following displays an electrical quantity as a numeric value?

• A. Relay
• B. Potentiometer
• C. Transistor
• D. Meter

T2B02

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

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

T4A02

18. Which of the following should be considered when selecting an accessory SWR meter?

• A. All these choices are correct
• B. The types of modulation being used at the station
• C. The distance that the meter will be located from the antenna
• D. The frequency and power level at which the measurements will be made

T3C11

19. Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

• A. Radio signals move somewhat faster than the speed of light
• B. Radio waves are blocked by dust particles
• C. The atmosphere refracts radio waves slightly
• D. Radio waves are not blocked by dust particles

T3A04

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

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

T2C02

21. Which of the following are typical duties of a Net Control Station?

• A. Call the net to order and direct communications between stations checking in
• B. Ensure that all stations checking into the net are properly licensed for operation on the net frequency
• C. Choose the regular net meeting time and frequency
• D. All these choices are correct

T1F09

22. What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

• A. Message forwarding station
• B. Beacon station
• C. Repeater station
• D. Earth station

T8B06

23. Which of the following are inputs to a satellite tracking program?

• A. The Keplerian elements
• B. The satellite transmitted power
• C. All these choices are correct
• D. The last observed time of zero Doppler shift

T0A01

24. Which of the following is a safety hazard of a 12-volt storage battery?

• A. All these choices are correct
• B. Touching both terminals with the hands can cause electrical shock
• C. Shorting the terminals can cause burns, fire, or an explosion
• D. RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas

T0C06

25. Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

• A. By calculation based on computer modeling
• B. By calculation based on FCC OET Bulletin 65
• C. By measurement of field strength using calibrated equipment
• D. All these choices are correct

T8D02

26. 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 net that meets at a specified time
• D. A group of operators sharing common interests

T5B11

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

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

T3B05

28. What is the relationship between wavelength and frequency?

• A. Wavelength gets longer as frequency increases
• B. Wavelength and frequency are unrelated
• C. Wavelength gets shorter as frequency increases
• D. Wavelength and frequency increase as path length increases

T5C01

29. What describes the ability to store energy in an electric field?

• A. Inductance
• B. Capacitance
• C. Resistance
• D. Tolerance

T6B08

30. What does the abbreviation FET stand for?

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

T9B01

31. What is a benefit of low SWR?

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

T7D06

32. Which of the following can damage a multimeter?

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

T9A01

33. What is a beam antenna?

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

T8A06

34. Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

• A. Lower sideband
• B. Suppressed sideband
• C. Upper sideband
• D. Inverted sideband

T7C05

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

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