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. - T0A10

What hazard is caused by charging or discharging a battery too quickly?

Select	Answer
A	Half-wave rectification
B	Excess output ripple
C	Overheating or out-gassing
D	Inverse memory effect

2. - T0B06

What is the minimum safe distance from a power line to allow when installing an antenna?

Select	Answer
A	Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
B	Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
C	1/2 wavelength at the operating frequency
D	The height of the power line above ground

3. - T0C05

Why do exposure limits vary with frequency?

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

4. - T1A06

What is the FCC Part 97 definition of a beacon?

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

5. - T1B06

On which HF bands does a Technician class operator have phone privileges?

Select	Answer
A	None
B	80 meter, 40 meter, 15 meter, and 10 meter bands
C	30 meter band only
D	10 meter band only

6. - T1C09

What is the grace period for renewal if an amateur license expires?

Select	Answer
A	Five years
B	Three years
C	Two years
D	Ten years

7. - T1D06

What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

Select	Answer
A	The FCC maintains a list of words that are not permitted to be used on amateur frequencies
B	There is no such prohibition
C	The ITU maintains a list of words that are not permitted to be used on amateur frequencies
D	Any such language is prohibited

8. - T1E05

What is an amateur station’s control point?

Select	Answer
A	The location of the station’s transmitting antenna
B	The location at which the control operator function is performed
C	The mailing address of the station licensee
D	The location of the station’s transmitting apparatus

9. - T1F10

Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?

Select	Answer
A	The owner of the repeater
B	The control operator of the originating station
C	The control operator of the repeater
D	Both the originating station and the repeater owner

10. - T2A12

What should you do before calling CQ?

Select	Answer
A	Make sure you are authorized to use that frequency
B	Ask if the frequency is in use
C	All these choices are correct
D	Listen first to be sure that no one else is using the frequency

11. - T2B03

Which of the following describes a linked repeater network?

Select	Answer
A	A single repeater with more than one receiver
B	A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network
C	Multiple repeaters with the same control operator
D	A system of repeaters linked by APRS

12. - T2C02

Which of the following are typical duties of a Net Control Station?

Select	Answer
A	Choose the regular net meeting time and frequency
B	Call the net to order and direct communications between stations checking in
C	All these choices are correct
D	Ensure that all stations checking into the net are properly licensed for operation on the net frequency

13. - T3A01

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

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

14. - T3B08

What frequency range is referred to as VHF?

Select	Answer
A	30 MHz to 300 MHz
B	30 kHz to 300 kHz
C	300 kHz to 3000 kHz
D	300 MHz to 3000 MHz

15. - T3C11

Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

Select	Answer
A	Radio waves are not blocked by dust particles
B	Radio signals move somewhat faster than the speed of light
C	Radio waves are blocked by dust particles
D	The atmosphere refracts radio waves slightly

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 feed line, between the transmitter and antenna
D	In the power supply cable, as close as possible to the radio

17. - T4B11

Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

Select	Answer
A	Your output power
B	All these choices are correct
C	The codec type being used
D	Your call sign

18. - T5A07

Why are metals generally good conductors of electricity?

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

19. - T5B12

Which is equal to 28400 kHz?

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

20. - T5C12

What is impedance?

Select	Answer
A	The opposition to AC current flow
B	The power handling capability of a component
C	The Q or Quality Factor of a component
D	The inverse of resistance

21. - T5D14

In which type of circuit is voltage the same across all components?

Select	Answer
A	Series
B	Branch
C	Parallel
D	Resonant

22. - T6A10

Which of the following battery chemistries is rechargeable?

Select	Answer
A	All these choices are correct
B	Lithium-ion
C	Nickel-metal hydride
D	Lead-acid

23. - T6B06

How is the cathode lead of a semiconductor diode often marked on the package?

Select	Answer
A	With the letter K
B	With the letter C
C	With a stripe
D	With the word "cathode"

24. - T6C12

Which of the following is accurately represented in electrical schematics?

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

25. - T6D07

Which of the following is commonly used as a visual indicator?

Select	Answer
A	Bipolar transistor
B	FET
C	Zener diode
D	LED

26. - T7A08

Which of the following describes combining speech with an RF carrier signal?

Select	Answer
A	Low-pass filtering
B	Modulation
C	Impedance matching
D	Oscillation

27. - T7B03

Which of the following can cause radio frequency interference?

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

28. - T7C08

Which instrument can be used to determine SWR?

Select	Answer
A	Voltmeter
B	Directional wattmeter
C	Ohmmeter
D	Iambic pentameter

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. - T8A07

What is a characteristic of single sideband (SSB) compared to FM?

Select	Answer
A	SSB signals have narrower bandwidth
B	SSB signals are less susceptible to interference
C	All these choices are correct
D	SSB signals are easier to tune in correctly

31. - T8B09

What causes spin fading of satellite signals?

Select	Answer
A	Interfering signals within the satellite uplink band
B	Circular polarized noise interference radiated from the sun
C	Rotation of the satellite and its antennas
D	Doppler shift of the received signal

32. - T8C04

Which of the following is good procedure when contacting another station in a contest?

Select	Answer
A	Send only the minimum information needed for proper identification and the contest exchange
B	Sign only the last two letters of your call if there are many other stations calling
C	Contact the station twice to be sure that you are in his log
D	All these choices are correct

33. - T8D05

Which of the following is an application of APRS?

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

34. - T9A03

Which of the following describes a simple dipole oriented parallel to Earth's surface?

Select	Answer
A	A ground-wave antenna
B	A travelling-wave antenna
C	A horizontally polarized antenna
D	A vertically polarized antenna

35. - T9B11

Which of the following types of feed line has the lowest loss at VHF and UHF?

Select	Answer
A	75-ohm flexible coax
B	Multi-conductor unbalanced cable
C	50-ohm flexible coax
D	Air-insulated hardline