Practice Exam

T5B01

1. How many milliamperes is 1.5 amperes?

• A. 15 milliamperes
• B. 150 milliamperes
• C. 1500 milliamperes
• D. 15,000 milliamperes

T6A08

2. What is the function of an SPDT switch?

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

T1F02

3. How often must you identify with your FCC-assigned call sign when using tactical call signs such as "Race Headquarters"?

• A. At the end of each communication and every ten minutes during a communication
• B. Never, the tactical call is sufficient
• C. At the end of every transmission
• D. Once during every hour

T9A05

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

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

T1B03

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

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

T8A08

6. What is the approximate bandwidth of a typical single sideband (SSB) voice signal?

• A. 15 kHz
• B. 1 kHz
• C. 6 kHz
• D. 3 kHz

T1D06

7. What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

• A. Any such language is prohibited
• B. The ITU maintains a list of words that are not permitted to be used on amateur frequencies
• C. There is no such prohibition
• D. The FCC maintains a list of words that are not permitted to be used on amateur frequencies

T6C05

8. What is component 4 in figure T-1?

• A. Resistor
• B. Ground symbol
• C. Battery
• D. Transistor

T9B11

9. 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

T7B10

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

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

T1E08

11. Which of the following is an example of automatic control?

• A. Controlling a station over the internet
• B. Using a computer or other device to send CW automatically
• C. Repeater operation
• D. Using a computer or other device to identify automatically

T3C10

12. 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. 23 centimeters
• C. All these choices are correct
• D. 6 and 10 meters

T3A04

13. What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

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

T6B04

14. Which of the following components can consist of three regions of semiconductor material?

• A. Pentagrid converter
• B. Alternator
• C. Transistor
• D. Triode

T0A04

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

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

T8D13

16. What is FT8?

• A. A digital slow-scan TV mode with forward error correction and automatic color compensation
• B. A digital mode capable of low signal-to-noise operation
• C. An eight channel multiplex mode for FM repeaters
• D. A wideband FM voice mode

T2A06

17. Which of the following is required when making on-the-air test transmissions?

• A. Notify the FCC of the transmissions
• B. All these choices are correct
• C. Conduct tests only between 10 p.m. and 6 a.m. local time
• D. Identify the transmitting station

T1A06

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

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

T5D10

19. What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

• A. 0.25 volts
• B. 2.5 volts
• C. 1 volt
• D. 1.5 volts

T0B03

20. Under what circumstances is it safe to climb a tower without a helper or observer?

• A. Never
• B. When no electrical work is being performed
• C. When no mechanical work is being performed
• D. When the work being done is not more than 20 feet above the ground

T4B11

21. Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

• A. Your call sign
• B. The codec type being used
• C. Your output power
• D. All these choices are correct

T8C06

22. How is over the air access to IRLP nodes accomplished?

• A. By using CTCSS tone codes
• B. By entering the proper internet password
• C. By obtaining a password that is sent via voice to the node
• D. By using DTMF signals

T7C04

23. What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

• A. 50:50
• B. Zero
• C. Full Scale
• D. 1:1

T6D11

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

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

T7D08

25. Which of the following types of solder should not be used for radio and electronic applications?

• A. Lead-tin solder
• B. Acid-core solder
• C. Tin-copper solder
• D. Rosin-core solder

T2B01

26. How is a VHF/UHF transceiver's "reverse" function used?

• A. To listen on a repeater's output frequency
• B. To listen on a repeater's input frequency
• C. To reduce power output
• D. To increase power output

T2C08

27. Which of the following is a characteristic of good traffic handling?

• A. Making decisions as to whether messages are worthy of relay or delivery
• B. Passing messages exactly as received
• C. All these choices are correct
• D. Ensuring that any newsworthy messages are relayed to the news media

T4A06

28. What signals are used in a computer-radio interface for digital mode operation?

• A. Antenna and RF power
• B. Receive and transmit mode, status, and location
• C. NMEA GPS location and DC power
• D. Receive audio, transmit audio, and transmitter keying

T0C07

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

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

T5C03

30. What describes the ability to store energy in a magnetic field?

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

T7A07

31. What is the function of a transceiver's PTT input?

• A. Input for a key used to send CW
• B. Provides a transmit tuning tone when grounded
• C. Input for a preamplifier tuning tone
• D. Switches transceiver from receive to transmit when grounded

T5A10

32. Which term describes the rate at which electrical energy is used?

• A. Voltage
• B. Current
• C. Power
• D. Resistance

T8B06

33. Which of the following are inputs to a satellite tracking program?

• A. All these choices are correct
• B. The satellite transmitted power
• C. The Keplerian elements
• D. The last observed time of zero Doppler shift

T3B10

34. What frequency range is referred to as HF?

• A. 300 to 3000 kHz
• B. 3 to 30 MHz
• C. 30 to 300 MHz
• D. 300 to 3000 MHz

T1C09

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

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