Practice Exam

T7A05

1. What is the name of a circuit that generates a signal at a specific frequency?

• A. Oscillator
• B. Reactance modulator
• C. Phase modulator
• D. Low-pass filter

T4B06

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

T3B06

3. What is the formula for converting frequency to approximate wavelength in meters?

• A. Wavelength in meters equals 300 divided by frequency in megahertz
• B. Wavelength in meters equals frequency in hertz multiplied by 300
• C. Wavelength in meters equals frequency in hertz divided by 300
• D. Wavelength in meters equals frequency in megahertz divided by 300

T6A08

4. What is the function of an SPDT switch?

• A. Two circuits are each switched between one of two other circuits
• B. A single circuit is switched between one of two other circuits
• C. A single circuit is opened or closed
• D. Two circuits are opened or closed

T1C09

5. What is the grace period for renewal if an amateur license expires?

• A. Three years
• B. Ten years
• C. Two years
• D. Five years

T5C12

6. What is impedance?

• A. The power handling capability of a component
• B. The opposition to AC current flow
• C. The inverse of resistance
• D. The inverse of reactance

T5D04

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

• A. 270 ohms
• B. 1/30 ohm
• C. 30 ohms
• D. 3 ohms

T6D09

8. What is the name of a device that combines several semiconductors and other components into one package?

• A. Transducer
• B. Integrated circuit
• C. Multi-pole relay
• D. Transformer

T0C07

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

• A. Electrocution
• B. All these choices are correct
• C. Exposure to ionizing radiation
• D. RF burn to skin

T8B12

10. Which of the following is a way to determine whether your satellite uplink power into a linear transponder satellite is neither too low nor too high?

• A. Check your signal strength report in the telemetry data
• B. Listen for distortion on your downlink signal
• C. Your signal strength on the downlink should be about the same as the beacon
• D. Compare your signal to others on the downlink using an internet SDR receiver

T4A02

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

• A. The ability of the meter to compensate for a poor transmission line match to the antenna
• B. The frequency and power level at which the measurements will be made
• C. The maximum SWR anticipated on the transmission line
• D. The distance that the meter will be located from the antenna

T8D06

12. What does the abbreviation "PSK" mean?

• A. Packet Sampled Keying
• B. Phase Shift Keying
• C. Power Sampled Keying
• D. Pulse Shift Keying

T3C07

13. What band is best suited for communicating via meteor scatter?

• A. 6 meters
• B. 33 centimeters
• C. 70 centimeters
• D. 2 meters

T1D08

14. In which of the following circumstances may the control operator of an amateur station receive compensation for operating that station?

• A. When the communication is made to obtain emergency information for a local broadcast station
• B. When the communication is related to the sale of amateur equipment by the control operator's employer
• C. When the communication is a part of classroom instruction at an educational institution
• D. All these choices are correct

T2A07

15. What does the term "repeater offset" mean?

• A. The repeater has a time delay to prevent interference
• B. The approximately half-second delay to allow for the "squelch tail" to be removed
• C. The fee charged by the repeater owner or club to provide for maintenance
• D. The difference between a repeater's transmit and receive frequencies

T9B02

16. What is the most common impedance of coaxial cables used in amateur radio?

• A. 12 ohms
• B. 600 ohms
• C. 8 ohms
• D. 50 ohms

T6B02

17. What electronic component allows current to flow in only one direction?

• A. Diode
• B. Fuse
• C. Resistor
• D. Driven element

T7D05

18. How does an ohmmeter measure the resistance of a circuit or component?

• A. By placing a variable resistor in series with the circuit
• B. By applying a variable voltage and measuring the resulting current change
• C. By applying a small current and measuring the resulting voltage
• D. By placing a variable resistor in parallel with the circuit

T8C06

19. How is over the air access to Internet Radio Linking Project (IRLP) nodes accomplished?

• A. By obtaining a password that is sent via voice to the node
• B. By entering the proper internet password
• C. By using Continuous Tone-Coded Squelch System (CTCSS) tone codes
• D. By using Dual-Tone Multi-Frequency (DTMF) signals

T7B11

20. Which of the following can eliminate distorted voice transmissions?

• A. Adding a clip-on ferrite "choke" to the microphone cable to prevent the transmitted signal from feeding back into the transmitter
• B. Turning the squelch control fully clockwise to prevent the transmitted signal from triggering the squelch circuit
• C. Adding extra feedline to the antenna to lower SWR
• D. Turning the radio on and off to reset the computer-controlled circuitry

T0B07

21. Which of the following is an important safety rule to remember when using a crank-up tower?

• A. All these choices are correct
• B. This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed
• C. This type of tower must never be grounded
• D. This type of tower must never be painted

T8A06

22. 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

T6C06

23. What is component 6 in figure T-2?

• A. Regulator IC
• B. Resistor
• C. Transistor
• D. Capacitor

T7C11

24. What is an advantage of foam-dielectric versus solid-dielectric coaxial cable?

• A. It is more resistant to moisture contamination
• B. It has higher voltage breakdown
• C. It has less loss per foot
• D. It has a better impedance match to 50 ohms

T2C09

25. Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

• A. Yes, but only when part of a RACES emergency plan
• B. Yes, but only when part of a FEMA emergency plan
• C. Yes, but only in situations involving the immediate safety of human life or protection of property
• D. No

T2B04

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

T1A10

27. Besides an FCC-issued amateur operator license, what is required to be the control operator of a Radio Amateur Civil Emergency Service (RACES) Station?

• A. A written recommendation by the local ARRL Emergency Coordinator
• B. Membership in the Amateur Radio Emergency Service (ARES)
• C. Certification of current enrollment by a civil defense organization
• D. Nothing

T0A09

28. What should be done to all external ground rods or earth connections?

• A. Bond them together with heavy wire or conductive strap
• B. Keep them as far apart as possible
• C. Tune them for resonance on the lowest frequency of operation
• D. Waterproof them with silicone caulk or electrical tape

T9A06

29. Which of the following types of antennas offers the greatest gain?

• A. 5/8 wave vertical
• B. J pole
• C. Yagi
• D. Isotropic

T5B01

30. How many milliamperes is 1.5 amperes?

• A. 0.0000015 milliamperes
• B. 1,500,000 milliamperes
• C. 1500 milliamperes
• D. 0.0015 milliamperes

T3A04

31. What is the effect of antenna cross-polarization over a line-of-sight VHF or UHF path?

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

T1B10

32. Where may SSB phone be used in amateur bands above 50 MHz?

• A. In at least some segment of all these bands
• B. On any band if the power is limited to 25 watts
• C. Only in sub-bands allocated to General class or higher licensees
• D. Only on repeaters

T1E11

33. What is a control operator as defined in Part 97?

• A. An amateur operator designated by the licensee of a station to be responsible for transmissions and FCC rules compliance at that station
• B. The person who is the licensee of an amateur station
• C. The person speaking or otherwise communicating messages over an amateur station
• D. An amateur operator identified in the FCC database as responsible for transmissions and FCC rules compliance at a station license location

T1F08

34. What is the definition of third-party communications?

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

T5A06

35. What is the unit of frequency?

• A. Hertz
• B. Farad
• C. Epicycles per second
• D. Henry