Practice Exam

T9B06

1. Which of the following RF connector types is most suitable for frequencies above 400 MHz?

• A. Type N
• B. UHF (PL-259/SO-239)
• C. RS-213
• D. DB-25

T7B10

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

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

T6A09

3. What electrical component is used to protect other circuit components from current overloads?

• A. Varactor
• B. Fuse
• C. All these choices are correct
• D. Thyratron

T3B02

4. What property of a radio wave defines its polarization?

• A. The orientation of the magnetic field
• B. The orientation of the electric field
• C. The ratio of the velocity to the wavelength
• D. The ratio of the energy in the magnetic field to the energy in the electric field

T8C11

5. What is an amateur radio station that connects other amateur stations to the internet?

• A. A beacon
• B. A gateway
• C. A repeater
• D. A digipeater

T3C09

6. What is generally the best time for long-distance 10 meter band propagation via the F region?

• A. From shortly after sunset to dawn during periods of low sunspot activity
• B. From shortly after sunset to dawn during periods of high sunspot activity
• C. From dawn to shortly after sunset during periods of high sunspot activity
• D. From dawn to shortly after sunset during periods of low sunspot activity

T5C09

7. How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

• A. 3.8 watts
• B. 0.7 watts
• C. 138 watts
• D. 23.8 watts

T1B01

8. Which of the following frequency ranges are available for phone operation by Technician licensees?

• A. 28.500 MHz to 28.600 MHz
• B. 28.300 MHz to 28.500 MHz
• C. 28.100 MHz to 28.300 MHz
• D. 28.050 MHz to 28.150 MHz

T1F10

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

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

T1A05

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

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

T0C07

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

• A. Radiation poisoning
• B. Electrocution
• C. RF burn to skin
• D. All these choices are correct

T5B05

12. Which is equal to 500 milliwatts?

• A. 0.02 watts
• B. 50 watts
• C. 0.5 watts
• D. 5 watts

T2B08

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

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

T7D02

14. How is a voltmeter connected to a component to measure applied voltage?

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

T1D03

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

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

T4A01

16. Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

• A. 24.0 volts at 4 amperes
• B. 13.8 volts at 4 amperes
• C. 24.0 volts at 12 amperes
• D. 13.8 volts at 12 amperes

T7C09

17. Which of the following causes failure of coaxial cables?

• A. Moisture contamination
• B. Rapid fluctuation in transmitter output power
• C. Solder flux contamination
• D. Operation at 100% duty cycle for an extended period

T1C07

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

• A. Failure to provide and maintain a correct email address with the FCC
• B. Failure to inform the FCC of any changes in the amateur station following performance of an RF safety environmental evaluation
• 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

T2C01

19. When do FCC rules NOT apply to the operation of an amateur station?

• A. When operating under special ARES rules
• B. When operating a RACES station
• C. FCC rules always apply
• D. When operating under special FEMA rules

T6D06

20. What component changes 120 V AC power to a lower AC voltage for other uses?

• A. Transistor
• B. Diode
• C. Transformer
• D. Variable capacitor

T6C01

21. What is the name of an electrical wiring diagram that uses standard component symbols?

• A. Flow chart
• B. Bill of materials
• C. Schematic
• D. Connector pinout

T6B06

22. How is the cathode lead of a semiconductor diode often marked on the package?

• A. With the letter C
• B. With a stripe
• C. With the word "cathode"
• D. With the letter K

T7A02

23. What is a transceiver?

• A. A device for automatically sending and decoding Morse code
• B. A device for converting receiver and transmitter frequencies to another band
• C. A device for matching feed line impedance to 50 ohms
• D. A device that combines a receiver and transmitter

T1E11

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

T9A12

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

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

T5D01

26. What formula is used to calculate current in a circuit?

• A. I = E / R
• B. I = E * R
• C. I = E - R
• D. I = E + R

T5A06

27. What is the unit of frequency?

• A. Farad
• B. Henry
• C. Tesla
• D. Hertz

T4B12

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

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

T8B07

29. 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. An observed change in signal frequency caused by relative motion between the satellite and Earth station
• C. A change in the satellite orbit
• D. A special digital communications mode for some satellites

T8A02

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

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

T8D08

31. Which of the following is included in packet radio transmissions?

• A. A check sum that permits error detection
• B. Automatic repeat request in case of error
• C. A header that contains the call sign of the station to which the information is being sent
• D. All these choices are correct

T0A10

32. What hazard is caused by charging or discharging a battery too quickly?

• A. Inverse memory effect
• B. Excess output ripple
• C. Overheating or out-gassing
• D. Half-wave rectification

T0B06

33. What is the minimum safe distance from a power line to allow when installing an antenna?

• A. Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
• B. Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
• C. 1/2 wavelength at the operating frequency
• D. The height of the power line above ground

T3A05

34. When using a directional antenna, how might your station be able to communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?

• A. Change from vertical to horizontal polarization
• B. Increase the antenna SWR
• C. Try to find a path that reflects signals to the repeater
• D. Try the long path

T2A08

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

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