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

2. - T0B08

Which is a proper grounding method for a tower?

Select	Answer
A	Separate eight-foot ground rods for each tower leg, bonded to the tower and each other
B	A single four-foot ground rod, driven into the ground no more than 12 inches from the base
C	A connection between the tower base and a cold water pipe
D	A ferrite-core RF choke connected between the tower and ground

3. - T0C06

Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

Select	Answer
A	By measurement of field strength using calibrated equipment
B	By calculation based on computer modeling
C	All these choices are correct
D	By calculation based on FCC OET Bulletin 65

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	FEMA
C	Homeland Security
D	The FCC

5. - T1B08

How are US amateurs restricted in segments of bands where the Amateur Radio Service is secondary?

Select	Answer
A	U.S. amateurs may find non-amateur stations in those segments, and must avoid interfering with them
B	Digital transmissions are not permitted in those segments
C	International communications are not permitted in those segments
D	U.S. amateurs must give foreign amateur stations priority in those segments

6. - T1C06

From which of the following locations may an FCC-licensed amateur station transmit?

Select	Answer
A	From within any country that belongs to the International Telecommunication Union
B	From any vessel or craft located in international waters and documented or registered in the United States
C	From within any country that is a member of the United Nations
D	From anywhere within International Telecommunication Union (ITU) Regions 2 and 3

7. - T1D02

Under which of the following circumstances are one-way transmissions by an amateur station prohibited?

Select	Answer
A	Broadcasting
B	In all circumstances
C	International Morse Code Practice
D	Telecommand or transmissions of telemetry

8. - T1E10

Which of the following is an example of remote control as defined in Part 97?

Select	Answer
A	All these choices are correct
B	Controlling a model aircraft, boat, or car by amateur radio
C	Repeater operation
D	Operating the station over the internet

9. - T1F04

What language may you use for identification when operating in a phone sub-band?

Select	Answer
A	English, French, or Spanish
B	Any language recognized by the ITU
C	Any language recognized by the United Nations
D	English

10. - T2A07

What is meant by "repeater offset”?

Select	Answer
A	The difference between a repeater’s transmit and receive frequencies
B	The repeater has a time delay to prevent interference
C	The repeater station identification is done on a separate frequency
D	The number of simultaneous transmit frequencies used by a repeater

11. - T2B04

Which of the following could be the reason you are unable to access a repeater whose output you can hear?

Select	Answer
A	All these choices are correct
B	You are using the wrong CTCSS tone
C	Improper transceiver offset
D	You are using the wrong DCS code

12. - T2C08

Which of the following is a characteristic of good traffic handling?

Select	Answer
A	Passing messages exactly as received
B	Making decisions as to whether messages are worthy of relay or delivery
C	All these choices are correct
D	Ensuring that any newsworthy messages are relayed to the news media

13. - T3A01

Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

Select	Answer
A	The signal path encounters different concentrations of water vapor
B	Multipath propagation cancels or reinforces signals
C	VHF ionospheric propagation is very sensitive to path length
D	All these choices are correct

14. - T3B05

What is the relationship between wavelength and frequency?

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

15. - T3C08

What causes tropospheric ducting?

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

16. - T4A05

Where should an RF power meter be installed?

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

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 keypad or VFO knob
C	All these choices are correct
D	The Automatic Frequency Control

18. - T5A07

Why are metals generally good conductors of electricity?

Select	Answer
A	All these choices are correct
B	They have many free electrons
C	They have many free protons
D	They have relatively high density

19. - T5B06

Which is equal to 3000 milliamperes?

Select	Answer
A	3 amperes
B	0.3 amperes
C	0.003 amperes
D	3,000,000 amperes

20. - T5C04

What is the unit of inductance?

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

21. - T5D13

In which type of circuit is DC current the same through all components?

Select	Answer
A	Series
B	Parallel
C	Resonant
D	Branch

22. - T6A07

What electrical component is typically constructed as a coil of wire?

Select	Answer
A	Switch
B	Diode
C	Capacitor
D	Inductor

23. - T6B11

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

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

24. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Resistor
B	Transistor
C	Connector
D	Battery

25. - T6D06

What component changes 120 V AC power to a lower AC voltage for other uses?

Select	Answer
A	Transformer
B	Variable capacitor
C	Diode
D	Transistor

26. - T7A11

Where is an RF preamplifier installed?

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

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. - T7C10

Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

Select	Answer
A	Ultraviolet light can damage the jacket and allow water to enter the cable
B	Ultraviolet and RF signals can mix, causing interference
C	Ultraviolet light can increase losses in the cable’s jacket
D	Ultraviolet resistant jackets prevent harmonic radiation

29. - T7D01

Which instrument would you use to measure electric potential?

Select	Answer
A	An ohmmeter
B	A voltmeter
C	An ammeter
D	A wavemeter

30. - T8A10

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

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

31. - T8B03

Which of the following are provided by satellite tracking programs?

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

32. - T8C09

Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

Select	Answer
A	IRLP
B	DMR
C	EchoLink
D	D-STAR

33. - T8D05

Which of the following is an application of APRS?

Select	Answer
A	Providing information on the number of stations signed into a repeater
B	Showing automatically the number of packets transmitted via PACTOR during a specific time interval
C	Providing real-time tactical digital communications in conjunction with a map showing the locations of stations
D	Providing voice over internet connection between repeaters

34. - T9A11

What is antenna gain?

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

35. - T9B05

What happens as the frequency of a signal in coaxial cable is increased?

Select	Answer
A	The loss increases
B	The characteristic impedance decreases
C	The characteristic impedance increases
D	The loss decreases

Figure T-1