Practice Exam

T9A08

1. What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

• A. 12
• B. 50
• C. 19
• D. 112

T1D06

2. What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

• A. The ITU maintains a list of words that are not permitted to be used on amateur frequencies
• B. Any such language is prohibited
• C. There is no such prohibition
• D. The FCC maintains a list of words that are not permitted to be used on amateur frequencies

T7C03

3. What does a dummy load consist of?

• A. A 50-ohm reactance used to terminate a transmission line
• B. A non-inductive resistor mounted on a heat sink
• C. A low-voltage power supply and a DC relay
• D. A high-gain amplifier and a TR switch

T2A02

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

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

T1E01

5. When may an amateur station transmit without a control operator?

• A. When the station licensee is away and another licensed amateur is using the station
• B. When the transmitting station is an auxiliary station
• C. Never
• D. When using automatic control, such as in the case of a repeater

T5A11

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

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

T5C13

7. What is the abbreviation for kilohertz?

• A. khz
• B. KHZ
• C. khZ
• D. kHz

T9B12

8. What is standing wave ratio (SWR)?

• A. A measure of how well a load is matched to a transmission line
• B. The transmitter efficiency ratio
• C. An indication of the quality of your station's ground connection
• D. The ratio of amplifier power output to input

T1C11

9. If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

• A. No, you must wait until the license has been renewed
• B. Yes, for up to two years
• C. Yes, as soon as you apply for renewal
• D. Yes, for up to one year

T7D10

10. What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

• A. Alternating between open and short circuit
• B. Decreasing resistance with time
• C. Steady full-scale reading
• D. Increasing resistance with time

T3B09

11. What frequency range is referred to as UHF?

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

T5D04

12. What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?

• A. 270 ohms
• B. 3 ohms
• C. 30 ohms
• D. 93 ohms

T0C02

13. At which of the following frequencies does maximum permissible exposure have the lowest value?

• A. 440 MHz
• B. 3.5 MHz
• C. 50 MHz
• D. 1296 MHz

T2C06

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

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

T6A05

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

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

T6B05

16. What type of transistor has a gate, drain, and source?

• A. Field-effect
• B. Bipolar junction
• C. Varistor
• D. Tesla-effect

T1A02

17. Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

• A. All these choices are correct
• B. The FCC
• C. Homeland Security
• D. FEMA

T3C03

18. What is a characteristic of VHF signals received via auroral backscatter?

• A. They are generally strongest when your antenna is aimed west
• B. They are often received from 10,000 miles or more
• C. They occur only during winter nighttime hours
• D. They are distorted and signal strength varies considerably

T4B07

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

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

T2B13

20. What is the purpose of a squelch function?

• A. Mute the receiver audio when a signal is not present
• B. Reduce interference from impulse noise
• C. Reduce a CW transmitter's key clicks
• D. Eliminate parasitic oscillations in an RF amplifier

T6C03

21. What is component 2 in figure T-1?

• A. Transistor
• B. Connector
• C. Indicator lamp
• D. Resistor

T6D08

22. Which of the following is combined with an inductor to make a resonant circuit?

• A. Capacitor
• B. Zener diode
• C. Resistor
• D. Potentiometer

T8C08

23. What is the Internet Radio Linking Project (IRLP)?

• A. A system for providing access to websites via amateur radio
• B. A system for informing amateurs in real time of the frequency of active DX stations
• C. A technique for measuring signal strength of an amateur transmitter via the internet
• D. A technique to connect amateur radio systems, such as repeaters, via the internet using Voice Over Internet Protocol (VoIP)

T4A06

24. What signals are used in a computer-radio interface for digital mode operation?

• A. NMEA GPS location and DC power
• B. Antenna and RF power
• C. Receive and transmit mode, status, and location
• D. Receive audio, transmit audio, and transmitter keying

T8A06

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

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

T7B10

26. What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

• A. All these choices are correct
• B. Your batteries are running low
• C. You are in a bad location
• D. Your transmitter is slightly off frequency

T8B07

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

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

T1F08

28. What is the definition of third party communications?

• A. Amateur radio communications where three stations are in communications with one another
• B. A message from a control operator to another amateur station control operator on behalf of another person
• C. Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments
• D. Operation when the transmitting equipment is licensed to a person other than the control operator

T0B11

29. Which of the following establishes grounding requirements for an amateur radio tower or antenna?

• A. Local electrical codes
• B. FAA tower lighting regulations
• C. UL recommended practices
• D. FCC Part 97 rules

T1B12

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

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

T5B11

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

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

T8D03

32. What kind of data can be transmitted by APRS?

• A. Weather data
• B. GPS position data
• C. Text messages
• D. All these choices are correct

T0A02

33. What health hazard is presented by electrical current flowing through the body?

• A. It may disrupt the electrical functions of cells
• B. It may cause involuntary muscle contractions
• C. It may cause injury by heating tissue
• D. All these choices are correct

T3A01

34. Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

• A. All these choices are correct
• B. The signal path encounters different concentrations of water vapor
• C. VHF ionospheric propagation is very sensitive to path length
• D. Multipath propagation cancels or reinforces signals

T7A04

35. Which term describes the ability of a receiver to discriminate between multiple signals?

• A. Discrimination ratio
• B. Harmonic distortion
• C. Sensitivity
• D. Selectivity