Practice Exam

T2C05

1. What does the term "traffic" refer to in net operation?

• A. Operation by mobile or portable stations
• B. Messages exchanged by net stations
• C. The number of stations checking in and out of a net
• D. Requests to activate the net by a served agency

T7A08

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

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

T1D10

3. How does the FCC define broadcasting for the Amateur Radio Service?

• A. Two-way transmissions by amateur stations
• B. Any transmission made by the licensed station
• C. Transmission of messages directed only to amateur operators
• D. Transmissions intended for reception by the general public

T6A05

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

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

T1E11

5. Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

• A. The station custodian
• B. The person operating the station equipment
• C. The station licensee
• D. The third party participant

T9B12

6. What is standing wave ratio (SWR)?

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

T3A07

7. What weather condition might decrease range at microwave frequencies?

• A. High winds
• B. Low barometric pressure
• C. Precipitation
• D. Colder temperatures

T8C05

8. What is a grid locator?

• A. A letter-number designator assigned to an azimuth and elevation
• B. An instrument for radio direction finding
• C. An instrument for neutralizing a final amplifier
• D. A letter-number designator assigned to a geographic location

T5A01

9. Electrical current is measured in which of the following units?

• A. Volts
• B. Watts
• C. Ohms
• D. Amperes

T7D10

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

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

T1C07

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

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

T2B13

12. 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

T0C06

13. Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

• A. All these choices are correct
• B. By measurement of field strength using calibrated equipment
• C. By calculation based on FCC OET Bulletin 65
• D. By calculation based on computer modeling

T6D08

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

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

T1F01

15. When must the station and its records be available for FCC inspection?

• A. Only when presented with a valid warrant by an FCC official or government agent
• B. At any time ten days after notification by the FCC of such an inspection
• C. At any time after written notification by the FCC of such inspection
• D. At any time upon request by an FCC representative

T4B12

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

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

T8A02

17. What type of modulation is commonly used for VHF packet radio transmissions?

• A. AM
• B. PSK
• C. SSB
• D. FM or PM

T1B09

18. Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

• A. To allow for transmitter frequency drift
• B. To allow for calibration error in the transmitter frequency display
• C. All these choices are correct
• D. So that modulation sidebands do not extend beyond the band edge

T5B13

19. Which is equal to 2425 MHz?

• A. 2425 GHz
• B. 0.002425 GHz
• C. 24.25 GHz
• D. 2.425 GHz

T8B05

20. What is a satellite beacon?

• A. The primary transmit antenna on the satellite
• B. A transmission from a satellite that contains status information
• C. An indicator light that shows where to point your antenna
• D. A reflective surface on the satellite

T5C01

21. What describes the ability to store energy in an electric field?

• A. Inductance
• B. Capacitance
• C. Tolerance
• D. Resistance

T0B05

22. What is the purpose of a safety wire through a turnbuckle used to tension guy lines?

• A. Provide a ground path for lightning strikes
• B. Prevent loosening of the turnbuckle from vibration
• C. Provide an ability to measure for proper tensioning
• D. Secure the guy line if the turnbuckle breaks

T4A09

23. How can you determine the length of time that equipment can be powered from a battery?

• A. Multiply the square of the current rating of the battery by the input resistance of the equipment
• B. Multiply the watts per hour consumed by the equipment by the battery power rating
• C. Divide the battery ampere-hour rating by the average current draw of the equipment
• D. Divide the watt-hour rating of the battery by the peak power consumption of the equipment

T3B05

24. What is the relationship between wavelength and frequency?

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

T7C05

25. Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

• A. Because power supplies cannot supply enough current at high SWR
• B. To comply with FCC rules on spectral purity
• C. To lower the SWR on the transmission line
• D. To protect the output amplifier transistors

T3C06

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

T5D05

27. What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

• A. 18 ohms
• B. 13.5 ohms
• C. 0.125 ohms
• D. 8 ohms

T6C03

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

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

T2A09

29. Which of the following indicates that a station is listening on a repeater and looking for a contact?

• A. "QSY" followed by your call sign
• B. The station's call sign followed by the word "monitoring"
• C. The repeater call sign followed by the station's call sign
• D. "CQ CQ" followed by the repeater's call sign

T0A04

30. What is the purpose of a fuse in an electrical circuit?

• A. To remove power in case of overload
• B. To limit current to prevent shocks
• C. To prevent power supply ripple from damaging a component
• D. All these choices are correct

T9A05

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

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

T1A05

32. What proves that the FCC has issued an operator/primary license grant?

• A. All these choices are correct
• B. The license appears in the FCC ULS database
• C. A printed copy of the certificate of successful completion of examination
• D. An email notification from the NCVEC granting the license

T8D01

33. Which of the following is a digital communications mode?

• A. IEEE 802.11
• B. All these choices are correct
• C. FT8
• D. Packet radio

T7B11

34. What is a symptom of RF feedback in a transmitter or transceiver?

• A. Reports of garbled, distorted, or unintelligible voice transmissions
• B. Frequent blowing of power supply fuses
• C. Excessive SWR at the antenna connection
• D. The transmitter will not stay on the desired frequency

T6B07

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

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