US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

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US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

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1. - T0A04

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

Select	Answer
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

2. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	All these choices are correct
B	The 60 Hz radiations from the feed line may increase the SWR
C	The antenna could contact high-voltage power lines
D	The antenna will not work properly because of induced voltages

3. - T0C01

What type of radiation are radio signals?

Select	Answer
A	Alpha radiation
B	Non-ionizing radiation
C	Ionizing radiation
D	Gamma radiation

4. - T1A06

What is the FCC Part 97 definition of a beacon?

Select	Answer
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

5. - T1B02

Which amateurs may contact the International Space Station (ISS) on VHF bands?

Select	Answer
A	Any amateur holding a Technician class or higher license
B	Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
C	Any amateur holding a General class or higher license
D	Any amateur holding a General class or higher license who has applied for and received approval from NASA

6. - T1C04

What may happen if the FCC is unable to reach you by email?

Select	Answer
A	Nothing; there is no such requirement
B	Revocation of access to the license record in the FCC system
C	Revocation of the station license or suspension of the operator license
D	Fine and suspension of operator license

7. - T1D05

When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

Select	Answer
A	When selling amateur radio equipment and not on a regular basis
B	Never
C	When no profit is made on the sale
D	When the equipment is not the personal property of either the station licensee, or the control operator, or their close relatives

8. - T1E08

Which of the following is an example of automatic control?

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

9. - T1F08

What is the definition of third party communications?

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

10. - T2A11

What term describes an amateur station that is transmitting and receiving on the same frequency?

Select	Answer
A	Diplex
B	Simplex
C	Multiplex
D	Full duplex

11. - T2B08

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

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

12. - T2C03

What technique is used to ensure that voice messages containing unusual words are received correctly?

Select	Answer
A	All these choices are correct
B	Speak very loudly into the microphone
C	Spell the words using a standard phonetic alphabet
D	Send the words by voice and Morse code

13. - T3A10

What effect does multi-path propagation have on data transmissions?

Select	Answer
A	Transmission rates must be increased by a factor equal to the number of separate paths observed
B	No significant changes will occur if the signals are transmitted using FM
C	Error rates are likely to increase
D	Transmission rates must be decreased by a factor equal to the number of separate paths observed

14. - T3B10

What frequency range is referred to as HF?

Select	Answer
A	300 to 3000 kHz
B	3 to 30 MHz
C	300 to 3000 MHz
D	30 to 300 MHz

15. - T3C08

What causes tropospheric ducting?

Select	Answer
A	Discharges of lightning during electrical storms
B	Sunspots and solar flares
C	Temperature inversions in the atmosphere
D	Updrafts from hurricanes and tornadoes

16. - T4A06

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

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

17. - T4B03

How is squelch adjusted so that a weak FM signal can be heard?

Select	Answer
A	Set the squelch threshold so that receiver output audio is on all the time
B	Turn on the anti-squelch function
C	Enable squelch enhancement
D	Turn up the audio level until it overcomes the squelch threshold

18. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Watts
B	Ohms
C	Volts
D	Amperes

19. - T5B11

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

Select	Answer
A	28 dB
B	18 dB
C	10 dB
D	12 dB

20. - T5C01

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

Select	Answer
A	Tolerance
B	Capacitance
C	Inductance
D	Resistance

21. - T5D06

What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

Select	Answer
A	16 ohms
B	8 ohms
C	48 ohms
D	3 ohms

22. - T6A12

What type of switch is represented by component 3 in figure T-2?

Select	Answer
A	Double-pole double-throw
B	Single-pole single-throw
C	Double-pole single-throw
D	Single-pole double-throw

23. - T6B11

What is the term that describes a device's ability to amplify a signal?

Select	Answer
A	On resistance
B	Gain
C	Forward voltage drop
D	Forward resistance

24. - T6C08

What is component 9 in figure T-2?

Select	Answer
A	Variable capacitor
B	Variable transformer
C	Variable resistor
D	Variable inductor

25. - T6D04

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

Select	Answer
A	Relay
B	Transistor
C	Meter
D	Potentiometer

26. - T7A01

Which term describes the ability of a receiver to detect the presence of a signal?

Select	Answer
A	Total Harmonic Distortion
B	Selectivity
C	Sensitivity
D	Linearity

27. - T7B09

What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

Select	Answer
A	Be sure all TV feed line coaxial connectors are installed properly
B	Add a low-pass filter to the TV antenna input
C	Add a preamplifier to the TV antenna input
D	Add a high-pass filter to the TV antenna input

28. - T7C04

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

Select	Answer
A	50:50
B	Zero
C	1:1
D	Full Scale

29. - T7D06

Which of the following can damage a multimeter?

Select	Answer
A	Failing to connect one of the probes to ground
B	Not allowing it to warm up properly
C	Attempting to measure voltage when using the resistance setting
D	Attempting to measure resistance using the voltage setting

30. - T8A08

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

Select	Answer
A	15 kHz
B	6 kHz
C	3 kHz
D	1 kHz

31. - T8B05

What is a satellite beacon?

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

32. - T8C11

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

Select	Answer
A	A repeater
B	A gateway
C	A beacon
D	A digipeater

33. - T8D03

What kind of data can be transmitted by APRS?

Select	Answer
A	All these choices are correct
B	Text messages
C	Weather data
D	GPS position data

34. - T9A03

Which of the following describes a simple dipole oriented parallel to Earth's surface?

Select	Answer
A	A horizontally polarized antenna
B	A ground-wave antenna
C	A vertically polarized antenna
D	A travelling-wave antenna

35. - T9B03

Why is coaxial cable the most common feed line for amateur radio antenna systems?

Select	Answer
A	It is easy to use and requires few special installation considerations
B	It can handle more power than any other type of feed line
C	It has less loss than any other type of feed line
D	It is less expensive than any other type of feed line

Figure T-2