Practice Exam

T9B03

1. Why is coaxial cable the most common feed line for amateur radio antenna systems?

• A. It can handle more power than any other type of feed line
• B. It has less loss than any other type of feed line
• C. It is easy to use and requires few special installation considerations
• D. It is less expensive than any other type of feed line

T6B12

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

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

T5C10

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

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

T5A06

4. What is the unit of frequency?

• A. Henry
• B. Farad
• C. Tesla
• D. Hertz

T1F10

5. Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?

• A. The control operator of the originating station
• B. Both the originating station and the repeater owner
• C. The control operator of the repeater
• D. The owner of the repeater

T9A02

6. Which of the following describes a type of antenna loading?

• A. Electrically lengthening by inserting inductors in radiating elements
• B. Strengthening the radiating elements of a beam antenna to better resist wind damage
• C. Installing a spring in the base of a mobile vertical antenna to make it more flexible
• D. Inserting a resistor in the radiating portion of the antenna to make it resonant

T1C07

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

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

T2A02

8. What is the national calling frequency for FM simplex operations in the 2 meter band?

• A. 146.520 MHz
• B. 446.000 MHz
• C. 145.000 MHz
• D. 432.100 MHz

T8C02

9. Which of these items would be useful for a hidden transmitter hunt?

• A. All these choices are correct
• B. A calibrated noise bridge
• C. Calibrated SWR meter
• D. A directional antenna

T3B10

10. What frequency range is referred to as HF?

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

T2B05

11. What would cause your FM transmission audio to be distorted on voice peaks?

• A. Your repeater offset is inverted
• B. You are talking too loudly
• C. Your transmit power is too high
• D. You need to talk louder

T4A11

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

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

T5D01

13. What formula is used to calculate current in a circuit?

• A. I = E * R
• B. I = E + R
• C. I = E - R
• D. I = E / R

T6C07

14. What is component 8 in figure T-2?

• A. Light emitting diode
• B. Resistor
• C. Inductor
• D. Regulator IC

T8A03

15. Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?

• A. FM
• B. DRM
• C. PM
• D. SSB

T3C01

16. Why are simplex UHF signals rarely heard beyond their radio horizon?

• A. UHF signals are usually not propagated by the ionosphere
• B. They are too weak to go very far
• C. UHF signals are absorbed by the ionospheric D region
• D. FCC regulations prohibit them from going more than 50 miles

T1A09

17. Who selects a Frequency Coordinator?

• A. FCC Regional Field Office
• B. Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
• C. The FCC Office of Spectrum Management and Coordination Policy
• D. The local chapter of the Office of National Council of Independent Frequency Coordinators

T3A10

18. What effect does multi-path propagation have on data transmissions?

• A. Transmission rates must be decreased by a factor equal to the number of separate paths observed
• B. Transmission rates must be increased by a factor equal to the number of separate paths observed
• C. Error rates are likely to increase
• D. No significant changes will occur if the signals are transmitted using FM

T8B04

19. What mode of transmission is commonly used by amateur radio satellites?

• A. SSB
• B. All these choices are correct
• C. CW/data
• D. FM

T1B05

20. How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

• A. Fast-scan television only
• B. Emergency traffic only
• C. Fixed digital message forwarding systems only
• D. Spread spectrum only

T0B02

21. What is required when climbing an antenna tower?

• A. All these choices are correct
• B. Have sufficient training on safe tower climbing techniques
• C. Always wear an approved climbing harness
• D. Use appropriate tie-off to the tower at all times

T6D06

22. What component changes 120 V AC power to a lower AC voltage for other uses?

• A. Diode
• B. Transformer
• C. Transistor
• D. Variable capacitor

T1D01

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

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

T6A09

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

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

T7B07

25. Which of the following can reduce overload of a VHF transceiver by a nearby commercial FM station?

• A. Using double-shielded coaxial cable
• B. Installing an RF preamplifier
• C. Installing bypass capacitors on the microphone cable
• D. Installing a band-reject filter

T2C01

26. When do FCC rules NOT apply to the operation of an amateur station?

• A. When operating under special FEMA rules
• B. FCC rules always apply
• C. When operating a RACES station
• D. When operating under special ARES rules

T5B07

27. Which is equal to 3.525 MHz?

• A. 35.25 kHz
• B. 0.003525 kHz
• C. 3525 kHz
• D. 3,525,000 kHz

T8D12

28. Which of the following best describes an amateur radio mesh network?

• A. An internet linking protocol used to network repeaters
• B. An amateur-radio based data network using commercial Wi-Fi equipment with modified firmware
• C. A satellite communications network using modified commercial satellite TV hardware
• D. A wide-bandwidth digital voice mode employing DMR protocols

T7A01

29. Which term describes the ability of a receiver to detect the presence of a signal?

• A. Linearity
• B. Selectivity
• C. Total Harmonic Distortion
• D. Sensitivity

T4B12

30. What is the result of tuning an FM receiver above or below a signal's frequency?

• A. Distortion of the signal's audio
• B. Change in audio pitch
• C. Sideband inversion
• D. Generation of a heterodyne tone

T0A12

31. Which of the following precautions should be taken when measuring high voltages with a voltmeter?

• A. Ensure that the voltmeter has very low impedance
• B. Ensure that the voltmeter is set to the correct frequency
• C. Ensure that the voltmeter and leads are rated for use at the voltages to be measured
• D. Ensure that the circuit is grounded through the voltmeter

T7D02

32. How is a voltmeter connected to a component to measure applied voltage?

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

T1E08

33. Which of the following is an example of automatic control?

• A. Using a computer or other device to identify automatically
• B. Using a computer or other device to send CW automatically
• C. Repeater operation
• D. Controlling a station over the internet

T7C06

34. What does an SWR reading of 4:1 indicate?

• A. Loss of -4 dB
• B. Good impedance match
• C. Impedance mismatch
• D. Gain of +4 dB

T0C07

35. What hazard is created by touching an antenna during a transmission?

• A. Radiation poisoning
• B. RF burn to skin
• C. All these choices are correct
• D. Electrocution