Practice Exam

T4A07

1. 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 in" to transceiver speaker connector
• D. Computer "line out" to transceiver push-to-talk

T8B07

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

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

T6C07

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

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

T0C03

4. How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?

• A. It increases by a factor of 3
• B. It increases by a factor of 2
• C. There is no adjustment allowed for lower duty cycle
• D. It decreases by 50 percent

T6B12

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

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

T8D12

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

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

T7D03

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

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

T0A07

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

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

T8A11

9. What is the approximate bandwidth required to transmit a CW signal?

• A. 1000 Hz
• B. 150 Hz
• C. 2.4 kHz
• D. 15 kHz

T2A08

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

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

T1D03

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

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

T9A12

12. What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

• A. It eliminates distortion caused by reflected signals
• B. It has more gain than a 1/4-wavelength antenna
• C. It radiates at a very high angle
• D. It has 10 times the power gain of a 1/4 wavelength whip

T7C04

13. What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

• A. Full Scale
• B. 50:50
• C. Zero
• D. 1:1

T3C08

14. 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

T2B08

15. Which of the following applies when two stations transmitting on the same frequency interfere with each other?

• A. Both stations should choose another frequency to avoid conflict
• B. Interference is inevitable, so no action is required
• C. Use subaudible tones so both stations can share the frequency
• D. The stations should negotiate continued use of the frequency

T1C02

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

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

T7A06

17. What device converts the RF input and output of a transceiver to another band?

• A. Transverter
• B. Low-pass filter
• C. High-pass filter
• D. Phase converter

T5A03

18. What is the name for the flow of electrons in an electric circuit?

• A. Capacitance
• B. Resistance
• C. Current
• D. Voltage

T6D07

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

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

T1A08

20. Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

• A. Frequency Spectrum Manager appointed by the FCC
• B. Volunteer Frequency Coordinator recognized by local amateurs
• C. FCC Regional Field Office
• D. International Telecommunication Union

T1B12

21. Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

• A. 100 watts
• B. 500 watts
• C. 1500 watts
• D. 50 watts

T7B08

22. What should you do if something in a neighbor's home is causing harmful interference to your amateur station?

• A. Politely inform your neighbor that FCC rules prohibit the use of devices that cause interference
• B. Work with your neighbor to identify the offending device
• C. All these choices are correct
• D. Make sure your station meets the standards of good amateur practice

T1F10

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

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

T3B11

24. What is the approximate velocity of a radio wave in free space?

• A. 300,000,000 miles per hour
• B. 150,000 meters per second
• C. 150,000 miles per hour
• D. 300,000,000 meters per second

T2C06

25. What is the Amateur Radio Emergency Service (ARES)?

• A. A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
• B. A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
• C. A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
• D. A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service

T6A11

26. Which of the following battery chemistries is not rechargeable?

• A. Carbon-zinc
• B. Lithium-ion
• C. Lead-acid
• D. Nickel-cadmium

T5C07

27. What is the abbreviation for megahertz?

• A. MHz
• B. mh
• C. MH
• D. Mhz

T1E06

28. When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

• A. When using a club station whose trustee holds an Amateur Extra Class license
• B. As part of a multi-operator contest team
• C. At no time
• D. When designated as the control operator by an Amateur Extra Class licensee

T5D14

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

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

T0B02

30. What is required when climbing an antenna tower?

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

T4B06

31. Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

• A. The AGC or limiter
• B. The RIT or Clarifier
• C. The bandwidth selection
• D. The tone squelch

T8C09

32. 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

T9B08

33. Which of the following is a source of loss in coaxial feed line?

• A. High SWR
• B. Water intrusion into coaxial connectors
• C. All these choices are correct
• D. Multiple connectors in the line

T5B01

34. How many milliamperes is 1.5 amperes?

• A. 15,000 milliamperes
• B. 15 milliamperes
• C. 1500 milliamperes
• D. 150 milliamperes

T3A04

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

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