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. - T0A01

Which of the following is a safety hazard of a 12-volt storage battery?

Select	Answer
A	Shorting the terminals can cause burns, fire, or an explosion
B	RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas
C	All these choices are correct
D	Touching both terminals with the hands can cause electrical shock

2. - T0B01

Which of the following is good practice when installing ground wires on a tower for lightning protection?

Select	Answer
A	Put a drip loop in the ground connection to prevent water damage to the ground system
B	Make sure all ground wire bends are right angles
C	Ensure that connections are short and direct
D	All these choices are correct

3. - T0C05

Why do exposure limits vary with frequency?

Select	Answer
A	Higher frequency RF fields are transient in nature
B	Lower frequency RF fields do not penetrate the human body
C	The human body absorbs more RF energy at some frequencies than at others
D	Lower frequency RF fields have more energy than higher frequency fields

4. - T1A02

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

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

5. - T1B12

Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

Select	Answer
A	1500 watts
B	50 watts
C	500 watts
D	100 watts

6. - T1C04

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

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

7. - T1D03

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

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

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

Select	Answer
A	The highest class of operator license held by anyone on the premises
B	The class of operator license held by the control operator
C	The frequencies printed on the license grant
D	The frequency authorized by the frequency coordinator

9. - T1F09

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

Select	Answer
A	Message forwarding station
B	Beacon station
C	Repeater station
D	Earth station

10. - T2A06

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

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

11. - T2B13

What is the purpose of a squelch function?

Select	Answer
A	Reduce a CW transmitter's key clicks
B	Reduce interference from impulse noise
C	Eliminate parasitic oscillations in an RF amplifier
D	Mute the receiver audio when a signal is not present

12. - T2C11

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

Select	Answer
A	A box on the message form that indicates that the message was received and/or relayed
B	The number of words or word equivalents in the text portion of the message
C	A list of stations that have relayed 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 stratosphere
B	The troposphere
C	The ionosphere
D	The mesosphere

14. - T3B05

What is the relationship between wavelength and frequency?

Select	Answer
A	Wavelength and frequency are unrelated
B	Wavelength and frequency increase as path length increases
C	Wavelength gets longer as frequency increases
D	Wavelength gets shorter as frequency increases

15. - T3C10

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

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

16. - T4A10

What function is performed with a transceiver and a digital mode hot spot?

Select	Answer
A	FT8 digital communications via AFSK
B	High-speed digital communications for meteor scatter
C	RTTY encoding and decoding without a computer
D	Communication using digital voice or data systems via the internet

17. - T4B01

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

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

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Henry
B	Farad
C	Tesla
D	Hertz

19. - T5B08

Which is equal to 1,000,000 picofarads?

Select	Answer
A	1000 microfarads
B	0.001 microfarads
C	1 microfarad
D	1,000,000,000 microfarads

20. - T5C13

What is the abbreviation for kilohertz?

Select	Answer
A	KHZ
B	kHz
C	khz
D	khZ

21. - T5D09

What is the current through a 24-ohm resistor connected across 240 volts?

Select	Answer
A	24,000 amperes
B	10 amperes
C	0.1 amperes
D	216 amperes

22. - T6A11

Which of the following battery chemistries is not rechargeable?

Select	Answer
A	Lead-acid
B	Nickel-cadmium
C	Carbon-zinc
D	Lithium-ion

23. - T6B08

What does the abbreviation FET stand for?

Select	Answer
A	Fast Electron Transistor
B	Frequency Emission Transmitter
C	Field Effect Transistor
D	Free Electron Transmitter

24. - T6C11

What is component 4 in figure T-3?

Select	Answer
A	Transmitter
B	Dummy load
C	Antenna
D	Ground

25. - T6D09

What is the name of a device that combines several semiconductors and other components into one package?

Select	Answer
A	Transformer
B	Multi-pole relay
C	Transducer
D	Integrated circuit

26. - T7A03

Which of the following is used to convert a signal from one frequency to another?

Select	Answer
A	Phase splitter
B	Amplifier
C	Mixer
D	Inverter

27. - T7B04

Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

Select	Answer
A	Band-pass filter
B	Preamplifier
C	Low-pass filter
D	Ferrite choke

28. - T7C03

What does a dummy load consist of?

Select	Answer
A	A low-voltage power supply and a DC relay
B	A non-inductive resistor mounted on a heat sink
C	A high-gain amplifier and a TR switch
D	A 50-ohm reactance used to terminate a transmission line

29. - T7D06

Which of the following can damage a multimeter?

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

30. - T8A02

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

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

31. - T8B04

What mode of transmission is commonly used by amateur radio satellites?

Select	Answer
A	CW/data
B	FM
C	All these choices are correct
D	SSB

32. - T8C11

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

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

33. - T8D07

Which of the following describes DMR?

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

34. - T9A11

What is antenna gain?

Select	Answer
A	The additional power that is required in the antenna when transmitting on a higher frequency
B	The additional power that is added to the transmitter power
C	The increase in signal strength in a specified direction compared to a reference antenna
D	The increase in impedance on receive or transmit compared to a reference antenna

35. - T9B08

Which of the following is a source of loss in coaxial feed line?

Select	Answer
A	Water intrusion into coaxial connectors
B	Multiple connectors in the line
C	High SWR
D	All these choices are correct

Figure T-3