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. - T0A02

What health hazard is presented by electrical current flowing through the body?

Select	Answer
A	It may cause injury by heating tissue
B	All these choices are correct
C	It may disrupt the electrical functions of cells
D	It may cause involuntary muscle contractions

2. - T0B03

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

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

3. - T0C02

At which of the following frequencies does maximum permissible exposure have the lowest value?

Select	Answer
A	440 MHz
B	50 MHz
C	1296 MHz
D	3.5 MHz

4. - T1A11

When is willful interference to other amateur radio stations permitted?

Select	Answer
A	When making short test transmissions
B	At any time, stations in the Amateur Radio Service are not protected from willful interference
C	To stop another amateur station that is breaking the FCC rules
D	At no time

5. - T1B03

Which frequency is in the 6 meter amateur band?

Select	Answer
A	28.50 MHz
B	222.15 MHz
C	49.00 MHz
D	52.525 MHz

6. - T1C02

Who may select a desired call sign under the vanity call sign rules?

Select	Answer
A	Any licensed amateur
B	Only a licensed amateur with a General or Amateur Extra Class license
C	Only a licensed amateur with an Amateur Extra Class license
D	Only a licensed amateur who has been licensed continuously for more than 10 years

7. - T1D08

In which of the following circumstances may the control operator of an amateur station receive compensation for operating that station?

Select	Answer
A	When the communication is related to the sale of amateur equipment by the control operator's employer
B	All these choices are correct
C	When the communication is incidental to classroom instruction at an educational institution
D	When the communication is made to obtain emergency information for a local broadcast station

8. - T1E08

Which of the following is an example of automatic control?

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

9. - T1F09

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

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

10. - T2A10

What is a band plan, beyond the privileges established by the FCC?

Select	Answer
A	A list of operating schedules
B	A plan devised by a club to indicate frequency band usage
C	A voluntary guideline for using different modes or activities within an amateur band
D	A list of available net frequencies

11. - T2B02

What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

Select	Answer
A	Carrier squelch
B	DTMF
C	CTCSS
D	Tone burst

12. - T2C10

What information is contained in the preamble of a formal traffic message?

Select	Answer
A	The address of the intended recipient
B	Information needed to track the message
C	The email address of the originating station
D	The telephone number of the addressee

13. - T3A05

When using a directional antenna, how might your station be able to communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?

Select	Answer
A	Try the long path
B	Increase the antenna SWR
C	Try to find a path that reflects signals to the repeater
D	Change from vertical to horizontal polarization

14. - T3B04

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

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

15. - T3C01

Why are simplex UHF signals rarely heard beyond their radio horizon?

Select	Answer
A	They are too weak to go very far
B	FCC regulations prohibit them from going more than 50 miles
C	UHF signals are usually not propagated by the ionosphere
D	UHF signals are absorbed by the ionospheric D region

16. - T4A07

Which of the following connections is made between a computer and a transceiver to use computer software when operating digital modes?

Select	Answer
A	Computer “line in” to transceiver push-to-talk
B	Computer “line out” to transceiver speaker connector
C	Computer “line in” to transceiver speaker connector
D	Computer “line out” to transceiver push-to-talk

17. - T4B05

What does the scanning function of an FM transceiver do?

Select	Answer
A	Prevents interference to nearby repeaters
B	Checks for messages left on a digital bulletin board
C	Tunes through a range of frequencies to check for activity
D	Checks incoming signal deviation

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Farad
B	Hertz
C	Henry
D	Tesla

19. - T5B10

Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

Select	Answer
A	-9 dB
B	-6 dB
C	-1 dB
D	-3 dB

20. - T5C06

What does the abbreviation “RF” mean?

Select	Answer
A	The real frequency transmitted as opposed to the apparent frequency
B	Reflective force in antenna transmission lines
C	Radio frequency signals of all types
D	The resonant frequency of a tuned circuit

21. - T5D11

What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

Select	Answer
A	9 volts
B	10 volts
C	1 volt
D	11 volts

22. - T6A11

Which of the following battery chemistries is not rechargeable?

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

23. - T6B07

What causes a light-emitting diode (LED) to emit light?

Select	Answer
A	Inductively-coupled RF signal
B	Capacitively-coupled RF signal
C	Forward current
D	Reverse current

24. - T6C12

Which of the following is accurately represented in electrical schematics?

Select	Answer
A	Wire lengths
B	Physical appearance of components
C	All these choices are correct
D	Component connections

25. - T6D09

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

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

26. - T7A11

Where is an RF preamplifier installed?

Select	Answer
A	At the output of the transmitter power amplifier
B	At the output of the receiver audio amplifier
C	Between the antenna and receiver
D	Between the transmitter and the antenna tuner

27. - T7B02

What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

Select	Answer
A	The deviation of an FM transmitter is set too low
B	The microphone gain of the transmitter is turned up too high
C	The audio amplifier of the transmitter is overloaded
D	The receiver is unable to reject strong signals outside the AM or FM band

28. - T7C07

What happens to power lost in a feed line?

Select	Answer
A	It is converted into heat
B	It is radiated as harmonics
C	It increases the SWR
D	It distorts the signal

29. - T7D07

Which of the following measurements are made using a multimeter?

Select	Answer
A	Impedance and reactance
B	Signal strength and noise
C	Voltage and resistance
D	All these choices are correct

30. - T8A12

Which of the following is a disadvantage of FM compared with single sideband?

Select	Answer
A	Voice quality is poorer
B	Only one signal can be received at a time
C	FM signals are harder to tune
D	All these choices are correct

31. - T8B12

Which of the following is a way to determine whether your satellite uplink power is neither too low nor too high?

Select	Answer
A	All these choices are correct
B	Check your signal strength report in the telemetry data
C	Your signal strength on the downlink should be about the same as the beacon
D	Listen for distortion on your downlink signal

32. - T8C10

What is required before using the EchoLink system?

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

33. - T8D07

Which of the following describes DMR?

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

34. - T9A08

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

Select	Answer
A	12
B	112
C	50
D	19

35. - T9B10

What is the electrical difference between RG-58 and RG-213 coaxial cable?

Select	Answer
A	RG-58 cable has two shields
B	There is no significant difference between the two types
C	RG-213 cable has less loss at a given frequency
D	RG-58 cable can handle higher power levels