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. - T0A11

What hazard exists in a power supply immediately after turning it off?

Select	Answer
A	Charge stored in filter capacitors
B	Leakage flux in the power transformer
C	Circulating currents in the dc filter
D	Voltage transients from kickback diodes

2. - T0B11

Which of the following establishes grounding requirements for an amateur radio tower or antenna?

Select	Answer
A	FAA tower lighting regulations
B	FCC Part 97 rules
C	UL recommended practices
D	Local electrical codes

3. - T0C10

Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

Select	Answer
A	It takes into account the antenna feed line loss
B	It takes into account the thermal effects of the final amplifier
C	It affects the average exposure to radiation
D	It affects the peak exposure to radiation

4. - T1A06

What is the FCC Part 97 definition of a beacon?

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

5. - T1B01

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

Select	Answer
A	28.100 MHz to 28.300 MHz
B	28.300 MHz to 28.500 MHz
C	28.050 MHz to 28.150 MHz
D	28.500 MHz to 28.600 MHz

6. - T1C05

Which of the following is a valid Technician class call sign format?

Select	Answer
A	W1XX
B	KA1X
C	All these choices are correct
D	KF1XXX

7. - T1D01

With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

Select	Answer
A	Any country banned from making such communications by the American Radio Relay League (ARRL)
B	Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications
C	Any country banned from such communications by the International Amateur Radio Union (IARU)
D	Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications

8. - T1E02

Who may be the control operator of a station communicating through an amateur satellite or space station?

Select	Answer
A	A General class or higher licensee with a satellite operator certification
B	Only an Amateur Extra Class operator
C	Any amateur allowed to transmit on the satellite uplink frequency
D	Only an Amateur Extra Class operator who is also an AMSAT member

9. - T1F03

When are you required to transmit your assigned call sign?

Select	Answer
A	At least once during each transmission
B	At least every 15 minutes during and at the end of a communication
C	At least every 10 minutes during and at the end of a communication
D	At the beginning of each contact, and every 10 minutes thereafter

10. - T2A05

How should you respond to a station calling CQ?

Select	Answer
A	Transmit your call sign followed by the other station’s call sign
B	Transmit the other station’s call sign followed by your call sign
C	Transmit "CQ" followed by the other station’s call sign
D	Transmit a signal report followed by your call sign

11. - T2B06

What type of signaling uses pairs of audio tones?

Select	Answer
A	DTMF
B	D-STAR
C	CTCSS
D	GPRS

12. - T2C05

What does the term “traffic” refer to in net operation?

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

13. - T3A03

What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

Select	Answer
A	Vertical
B	Horizontal
C	Left-hand circular
D	Right-hand circular

14. - T3B04

What is the velocity of a radio wave traveling through free space?

Select	Answer
A	Speed inversely proportional to its wavelength
B	Speed of light
C	Speed of sound
D	Speed that increases as the frequency increases

15. - T3C07

What band is best suited for communicating via meteor scatter?

Select	Answer
A	2 meters
B	6 meters
C	70 centimeters
D	33 centimeters

16. - T4A05

Where should an RF power meter be installed?

Select	Answer
A	In the feed line, between the transmitter and antenna
B	In parallel with the push-to-talk line and the antenna
C	At the power supply output
D	In the power supply cable, as close as possible to the radio

17. - T4B02

Which of the following can be used to enter a transceiver’s operating frequency?

Select	Answer
A	The CTCSS or DTMF encoder
B	The Automatic Frequency Control
C	All these choices are correct
D	The keypad or VFO knob

18. - T5A09

Which of the following describes alternating current?

Select	Answer
A	All these answers are correct
B	Current that alternates between a negative direction and zero
C	Current that alternates between positive and negative directions
D	Current that alternates between a positive direction and zero

19. - T5B12

Which is equal to 28400 kHz?

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

20. - T5C04

What is the unit of inductance?

Select	Answer
A	The ohm
B	The coulomb
C	The farad
D	The henry

21. - T5D04

What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?

Select	Answer
A	30 ohms
B	270 ohms
C	3 ohms
D	93 ohms

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Varistor
B	Capacitor
C	Diode
D	Inductor

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Transistor
B	Transformer
C	Resistor
D	Reactor

24. - T6C08

What is component 9 in figure T-2?

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

25. - T6D04

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

Select	Answer
A	Potentiometer
B	Transistor
C	Meter
D	Relay

26. - T7A02

What is a transceiver?

Select	Answer
A	A device that combines a receiver and transmitter
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 for automatically sending and decoding Morse code

27. - T7B11

What is a symptom of RF feedback in a transmitter or transceiver?

Select	Answer
A	Excessive SWR at the antenna connection
B	Frequent blowing of power supply fuses
C	Reports of garbled, distorted, or unintelligible voice transmissions
D	The transmitter will not stay on the desired frequency

28. - T7C09

Which of the following causes failure of coaxial cables?

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

29. - T7D11

Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

Select	Answer
A	Ensure that the applied voltages are correct
B	Ensure that the circuit is grounded
C	Ensure that the circuit is not powered
D	Ensure that the circuit is operating at the correct frequency

30. - T8A02

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

Select	Answer
A	SSB
B	AM
C	PSK
D	FM or PM

31. - T8B05

What is a satellite beacon?

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

32. - T8C07

What is Voice Over Internet Protocol (VoIP)?

Select	Answer
A	A technique employed to “spot” DX stations via the internet
B	A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
C	A method of delivering voice communications over the internet using digital techniques
D	A set of rules specifying how to identify your station when linked over the internet to another station

33. - T8D13

What is FT8?

Select	Answer
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	A wideband FM voice mode
D	An eight channel multiplex mode for FM repeaters

34. - T9A08

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

Select	Answer
A	12
B	50
C	112
D	19

35. - T9B12

What is standing wave ratio (SWR)?

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

Figure T-2