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. - T0A08

Where should a fuse or circuit breaker be installed in a 120V AC power circuit?

Select	Answer
A	In series with the hot and neutral conductors
B	In series with the hot conductor only
C	In parallel with the hot and neutral conductors
D	In parallel with the hot conductor only

2. - T0B10

Which of the following is true when installing grounding conductors used for lightning protection?

Select	Answer
A	Sharp bends must be avoided
B	Wires must be carefully routed with precise right-angle bends
C	Common grounds must be avoided
D	Use only non-insulated wire

3. - T0C12

How does RF radiation differ from ionizing radiation (radioactivity)?

Select	Answer
A	RF radiation is limited in range to a few feet
B	RF radiation is perfectly safe
C	RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA
D	RF radiation can only be detected with an RF dosimeter

4. - T1A02

Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

Select	Answer
A	All these choices are correct
B	The FCC
C	Homeland Security
D	FEMA

5. - T1B02

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

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

6. - T1C07

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

Select	Answer
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 obtain FCC type acceptance prior to using a home-built transmitter
D	Failure to have a copy of your license available at your station

7. - T1D03

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

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

8. - T1E08

Which of the following is an example of automatic control?

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

9. - T1F01

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

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

10. - T2A03

What is a common repeater frequency offset in the 70 cm band?

Select	Answer
A	Plus or minus 600 kHz
B	Plus or minus 500 kHz
C	Plus or minus 1 MHz
D	Plus or minus 5 MHz

11. - T2B11

Which Q signal indicates that you are changing frequency?

Select	Answer
A	QSL
B	QRU
C	QRZ
D	QSY

12. - T2C11

What is meant by “check” in a radiogram header?

Select	Answer
A	A list of stations that have relayed the message
B	A box on the message form that indicates that the message was received and/or relayed
C	The number of words or word equivalents in the text portion of the message
D	The call sign of the originating station

13. - T3A11

Which region of the atmosphere can refract or bend HF and VHF radio waves?

Select	Answer
A	The ionosphere
B	The stratosphere
C	The mesosphere
D	The troposphere

14. - T3B07

In addition to frequency, which of the following is used to identify amateur radio bands?

Select	Answer
A	The approximate wavelength in meters
B	All these choices are correct
C	Traditional letter/number designators
D	Channel numbers

15. - T3C06

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?

Select	Answer
A	F2 region refraction
B	Faraday rotation
C	Tropospheric ducting
D	D region refraction

16. - T4A08

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

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

17. - T4B01

What is the effect of excessive microphone gain on SSB transmissions?

Select	Answer
A	Increased SWR
B	Distorted transmitted audio
C	All these choices are correct
D	Frequency instability

18. - T5A10

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

Select	Answer
A	Resistance
B	Current
C	Voltage
D	Power

19. - T5B12

Which is equal to 28400 kHz?

Select	Answer
A	28.400 kHz
B	284.00 MHz
C	28.400 MHz
D	2.800 MHz

20. - T5C11

How much current is required to deliver 120 watts at a voltage of 12 volts DC?

Select	Answer
A	132 amperes
B	12 amperes
C	10 amperes
D	0.1 amperes

21. - T5D03

What formula is used to calculate resistance in a circuit?

Select	Answer
A	R = E x I
B	R = E - I
C	R = E / I
D	R = E + I

22. - T6A02

What type of component is often used as an adjustable volume control?

Select	Answer
A	Transformer
B	Power resistor
C	Potentiometer
D	Fixed resistor

23. - T6B09

What are the names for the electrodes of a diode?

Select	Answer
A	Gate and base
B	Anode and cathode
C	Plus and minus
D	Source and drain

24. - T6C11

What is component 4 in figure T-3?

Select	Answer
A	Antenna
B	Transmitter
C	Ground
D	Dummy load

25. - T6D10

What is the function of component 2 in figure T-1?

Select	Answer
A	Control the flow of current
B	Supply electrical energy
C	Convert electrical energy into radio waves
D	Give off light when current flows through it

26. - T7A09

What is the function of the SSB/CW-FM switch on a VHF power amplifier?

Select	Answer
A	Set the amplifier for proper operation in the selected mode
B	Reduce the received signal noise
C	Change the mode of the transmitted signal
D	Change the frequency range of the amplifier to operate in the proper segment of the band

27. - T7B03

Which of the following can cause radio frequency interference?

Select	Answer
A	Fundamental overload
B	Harmonics
C	All these choices are correct
D	Spurious emissions

28. - T7C05

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

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

29. - T7D09

What is the characteristic appearance of a cold tin-lead solder joint?

Select	Answer
A	A bright or shiny surface
B	Dark black spots
C	Excessive solder
D	A rough or lumpy surface

30. - T8A10

What is the approximate bandwidth of AM fast-scan TV transmissions?

Select	Answer
A	About 3 MHz
B	About 1 MHz
C	More than 10 MHz
D	About 6 MHz

31. - T8B03

Which of the following are provided by satellite tracking programs?

Select	Answer
A	The apparent frequency of the satellite transmission, including effects of Doppler shift
B	The time, azimuth, and elevation of the start, maximum altitude, and end of a pass
C	All these choices are correct
D	Maps showing the real-time position of the satellite track over Earth

32. - T8C10

What is required before using the EchoLink system?

Select	Answer
A	Purchase a license to use the EchoLink software
B	Complete the required EchoLink training
C	All these choices are correct
D	Register your call sign and provide proof of license

33. - T8D07

Which of the following describes DMR?

Select	Answer
A	An automatic position tracking mode for FM mobiles communicating through repeaters
B	A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
C	A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction
D	An automatic computer logging technique for hands-off logging when communicating while operating a vehicle

34. - T9A08

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

Select	Answer
A	12
B	19
C	112
D	50

35. - T9B12

What is standing wave ratio (SWR)?

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

Figure T-3

Figure T-1