Practice Exam

T3C10

1. Which of the following bands may provide long-distance communications via the ionosphere's F region during the peak of the sunspot cycle?

• A. 70 centimeters and 1.25 meters
• B. 6 and 10 meters
• C. All these choices are correct
• D. 23 centimeters

T9A08

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

• A. 19
• B. 112
• C. 50
• D. 12

T6B02

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

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

T7B06

4. Which of the following actions should you take if a neighbor tells you that your station's transmissions are interfering with their radio or TV reception?

• A. Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
• B. Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel
• C. Immediately turn off your transmitter and contact the nearest FCC office for assistance
• D. All these choices are correct

T0C13

5. Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

• A. The FCC
• B. Anyone who is near an antenna
• C. The station licensee
• D. The local zoning board

T1D09

6. When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

• A. Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
• B. Never
• C. When such communications are directly related to the immediate safety of human life or protection of property
• D. When broadcasting communications to or from the space shuttle

T1B10

7. 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

T7C06

8. What does an SWR reading of 4:1 indicate?

• A. Gain of +4 dB
• B. Loss of -4 dB
• C. Good impedance match
• D. Impedance mismatch

T6A09

9. 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

T8B01

10. What telemetry information is typically transmitted by satellite beacons?

• A. Health and status of the satellite
• B. All these choices are correct
• C. The signal strength of received signals
• D. Time of day accurate to plus or minus 1/10 second

T8C01

11. Which of the following methods is used to locate sources of noise interference or jamming?

• A. Echolocation
• B. Radio direction finding
• C. Doppler radar
• D. Phase locking

T5D02

12. What formula is used to calculate voltage in a circuit?

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

T2B04

13. 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. Improper transceiver offset
• D. All these choices are correct

T6C07

14. What is component 8 in figure T-2?

• A. Resistor
• B. Light emitting diode
• C. Regulator IC
• D. Inductor

T8A03

15. Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?

• A. DRM
• B. SSB
• C. PM
• D. FM

T2A07

16. What is meant by "repeater offset"?

• A. The repeater has a time delay to prevent interference
• B. The repeater station identification is done on a separate frequency
• C. The number of simultaneous transmit frequencies used by a repeater
• D. The difference between a repeater's transmit and receive frequencies

T3B03

17. What are the two components of a radio wave?

• A. Voltage and current
• B. Ionizing and non-ionizing radiation
• C. Electric and magnetic fields
• D. Impedance and reactance

T5B11

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

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

T1C01

19. 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, Technician Plus, General, Amateur Extra
• D. Technician, General, Amateur Extra

T1A02

20. 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. FEMA
• D. Homeland Security

T1E11

21. 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 third party participant
• C. The station licensee
• D. The person operating the station equipment

T5A11

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

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

T9B11

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

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

T7D04

24. Which instrument is used to measure electric current?

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

T7A04

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

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

T6D04

26. Which of the following displays an electrical quantity as a numeric value?

• A. Relay
• B. Potentiometer
• C. Transistor
• D. Meter

T8D03

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

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

T0A02

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

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

T3A06

29. What is the meaning of the term "picket fencing"?

• A. Rapid flutter on mobile signals due to multipath propagation
• B. A type of ground system used with vertical antennas
• C. Local vs long-distance communications
• D. Alternating transmissions during a net operation

T5C10

30. How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

• A. 0.208 watts
• B. 14.5 watts
• C. 4.8 watts
• D. 30 watts

T1F09

31. What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

• A. Message forwarding station
• B. Earth station
• C. Repeater station
• D. Beacon station

T4B05

32. What does the scanning function of an FM transceiver do?

• A. Checks for messages left on a digital bulletin board
• B. Checks incoming signal deviation
• C. Tunes through a range of frequencies to check for activity
• D. Prevents interference to nearby repeaters

T4A08

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

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

T0B07

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

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

T2C05

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

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