Practice Exam

T7C08

1. Which instrument can be used to determine SWR?

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

T7D01

2. Which instrument would you use to measure electric potential?

• A. An ammeter
• B. A voltmeter
• C. A wavemeter
• D. An ohmmeter

T0A01

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

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

T1F04

4. What language may you use for identification when operating in a phone sub-band?

• A. Any language recognized by the ITU
• B. English, French, or Spanish
• C. English
• D. Any language recognized by the United Nations

T8C04

5. Which of the following is good procedure when contacting another station in a contest?

• A. All these choices are correct
• B. Contact the station twice to be sure that you are in his log
• C. Sign only the last two letters of your call if there are many other stations calling
• D. Send only the minimum information needed for proper identification and the contest exchange

T3B05

6. What is the relationship between wavelength and frequency?

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

T2B04

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

T0B09

8. Why should you avoid attaching an antenna to a utility pole?

• A. The 60 Hz radiations from the feed line may increase the SWR
• B. All these choices are correct
• C. The antenna could contact high-voltage power lines
• D. The antenna will not work properly because of induced voltages

T2A01

9. What is a common repeater frequency offset in the 2 meter band?

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

T6B07

10. What causes a light-emitting diode (LED) to emit light?

• A. Reverse current
• B. Capacitively-coupled RF signal
• C. Inductively-coupled RF signal
• D. Forward current

T6A03

11. What electrical parameter is controlled by a potentiometer?

• A. Inductance
• B. Capacitance
• C. Field strength
• D. Resistance

T8B08

12. What is meant by the statement that a satellite is operating in U/V mode?

• A. The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band
• B. The satellite frequencies are usually variable
• C. The satellite operates using ultraviolet frequencies
• D. The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band

T1E04

13. What determines the transmitting frequency privileges of an amateur station?

• A. The highest class of operator license held by anyone on the premises
• B. The class of operator license held by the control operator
• C. The frequency authorized by the frequency coordinator
• D. The frequencies printed on the license grant

T1D03

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

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

T1A06

15. What is the FCC Part 97 definition of a beacon?

• A. A bulletin sent by the FCC to announce a national emergency
• B. A government transmitter marking the amateur radio band edges
• C. An amateur station transmitting communications for the purposes of observing propagation or related experimental activities
• D. A continuous transmission of weather information authorized in the amateur bands by the National Weather Service

T9B11

16. Which of the following types of feed line has the lowest loss at VHF and UHF?

• A. 75-ohm flexible coax
• B. Multi-conductor unbalanced cable
• C. 50-ohm flexible coax
• D. Air-insulated hardline

T4B03

17. How is squelch adjusted so that a weak FM signal can be heard?

• A. Enable squelch enhancement
• B. Set the squelch threshold so that receiver output audio is on all the time
• C. Turn up the audio level until it overcomes the squelch threshold
• D. Turn on the anti-squelch function

T7A08

18. Which of the following describes combining speech with an RF carrier signal?

• A. Impedance matching
• B. Low-pass filtering
• C. Oscillation
• D. Modulation

T8D05

19. Which of the following is an application of APRS?

• A. Showing automatically the number of packets transmitted via PACTOR during a specific time interval
• B. Providing information on the number of stations signed into a repeater
• C. Providing real-time tactical digital communications in conjunction with a map showing the locations of stations
• D. Providing voice over internet connection between repeaters

T7B03

20. Which of the following can cause radio frequency interference?

• A. Spurious emissions
• B. All these choices are correct
• C. Fundamental overload
• D. Harmonics

T5B06

21. Which is equal to 3000 milliamperes?

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

T5D08

22. What is the current through a 100-ohm resistor connected across 200 volts?

• A. 100 amperes
• B. 2 amperes
• C. 0.5 amperes
• D. 20,000 amperes

T3C06

23. What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

• A. F2 region refraction
• B. Faraday rotation
• C. Tropospheric ducting
• D. D region refraction

T1B03

24. Which frequency is in the 6 meter amateur band?

• A. 49.00 MHz
• B. 222.15 MHz
• C. 28.50 MHz
• D. 52.525 MHz

T5C02

25. What is the unit of capacitance?

• A. The henry
• B. The farad
• C. The volt
• D. The ohm

T3A09

26. Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

• A. FM voice is unusable
• B. Either vertically or horizontally polarized antennas may be used for transmission or reception
• C. Both the transmitting and receiving antennas must be of the same polarization
• D. Digital modes are unusable

T9A05

27. Which of the following increases the resonant frequency of a dipole antenna?

• A. Adding capacitive loading to the ends of the radiating wires
• B. Inserting coils in series with radiating wires
• C. Shortening it
• D. Lengthening it

T6D11

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

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

T2C07

29. Which of the following is standard practice when you participate in a net?

• A. All these choices are correct
• B. Record the time of each of your transmissions
• C. When first responding to the net control station, transmit your call sign, name, and address as in the FCC database
• D. Unless you are reporting an emergency, transmit only when directed by the net control station

T5A04

30. What are the units of electrical resistance?

• A. Mhos
• B. Ohms
• C. Siemens
• D. Coulombs

T0C05

31. Why do exposure limits vary with frequency?

• A. Lower frequency RF fields have more energy than higher frequency fields
• B. The human body absorbs more RF energy at some frequencies than at others
• C. Lower frequency RF fields do not penetrate the human body
• D. Higher frequency RF fields are transient in nature

T8A06

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

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

T4A08

33. Which of the following conductors is preferred for bonding at RF?

• A. Flat copper strap
• B. Steel wire
• C. Copper braid removed from coaxial cable
• D. Twisted-pair cable

T1C01

34. For which license classes are new licenses currently available from the FCC?

• A. Novice, Technician Plus, General, Advanced
• B. Novice, Technician, General, Amateur Extra
• C. Technician, General, Amateur Extra
• D. Technician, Technician Plus, General, Amateur Extra

T6C08

35. What is component 9 in figure T-2?

• A. Variable resistor
• B. Variable inductor
• C. Variable transformer
• D. Variable capacitor