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

2. - T0B03

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

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

3. - T0C11

What is the definition of duty cycle during the averaging time for RF exposure?

Select	Answer
A	The difference between the PEP and average power output of a transmitter
B	The percentage of time that a transmitter is transmitting
C	The percentage of time that a transmitter is not transmitting
D	The difference between the lowest power output and the highest power output of a transmitter

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 government transmitter marking the amateur radio band edges
C	A continuous transmission of weather information authorized in the amateur bands by the National Weather Service
D	A bulletin sent by the FCC to announce a national emergency

5. - T1B02

Which amateurs may contact the International Space Station (ISS) on VHF bands?

Select	Answer
A	Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
B	Any amateur holding a Technician class or higher license
C	Any amateur holding a General class or higher license
D	Any amateur holding a General class or higher license who has applied for and received approval from NASA

6. - T1C11

If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

Select	Answer
A	Yes, for up to one year
B	No, you must wait until the license has been renewed
C	Yes, as soon as you apply for renewal
D	Yes, for up to two years

7. - T1D09

When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

Select	Answer
A	When broadcasting communications to or from the space shuttle
B	Never
C	When such communications are directly related to the immediate safety of human life or protection of property
D	Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

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

9. - T1F06

Which of the following self-assigned indicators are acceptable when using a phone transmission?

Select	Answer
A	KL7CC slant W3
B	KL7CC stroke W3
C	All these choices are correct
D	KL7CC slash W3

10. - T2A03

What is a common repeater frequency offset in the 70 cm band?

Select	Answer
A	Plus or minus 5 MHz
B	Plus or minus 1 MHz
C	Plus or minus 600 kHz
D	Plus or minus 500 kHz

11. - T2B01

How is a VHF/UHF transceiver’s “reverse” function used?

Select	Answer
A	To listen on a repeater’s input frequency
B	To increase power output
C	To reduce power output
D	To listen on a repeater’s output frequency

12. - T2C05

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

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

13. - T3A09

Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

Select	Answer
A	Either vertically or horizontally polarized antennas may be used for transmission or reception
B	Both the transmitting and receiving antennas must be of the same polarization
C	FM voice is unusable
D	Digital modes are unusable

14. - T3B06

What is the formula for converting frequency to approximate wavelength in meters?

Select	Answer
A	Wavelength in meters equals frequency in hertz divided by 300
B	Wavelength in meters equals frequency in hertz multiplied by 300
C	Wavelength in meters equals 300 divided by frequency in megahertz
D	Wavelength in meters equals frequency in megahertz divided by 300

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 waves are blocked by dust particles
C	The atmosphere refracts radio waves slightly
D	Radio signals move somewhat faster than the speed of light

16. - T4A10

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

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

17. - T4B05

What does the scanning function of an FM transceiver do?

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

18. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Glass
B	Copper
C	Mercury
D	Aluminum

19. - T5B11

Which decibel value represents a power increase from 20 watts to 200 watts?

Select	Answer
A	12 dB
B	10 dB
C	18 dB
D	28 dB

20. - T5C05

What is the unit of impedance?

Select	Answer
A	The coulomb
B	The volt
C	The ohm
D	The ampere

21. - T5D09

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

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

22. - T6A12

What type of switch is represented by component 3 in figure T-2?

Select	Answer
A	Single-pole single-throw
B	Double-pole single-throw
C	Single-pole double-throw
D	Double-pole double-throw

23. - T6B08

What does the abbreviation FET stand for?

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

24. - T6C06

What is component 6 in figure T-2?

Select	Answer
A	Resistor
B	Capacitor
C	Regulator IC
D	Transistor

25. - T6D01

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Select	Answer
A	Amplifier
B	Reflector
C	Rectifier
D	Transformer

26. - T7A06

What device converts the RF input and output of a transceiver to another band?

Select	Answer
A	Transverter
B	Phase converter
C	High-pass filter
D	Low-pass filter

27. - T7B10

What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

Select	Answer
A	You are in a bad location
B	All these choices are correct
C	Your transmitter is slightly off frequency
D	Your batteries are running low

28. - T7C04

What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

Select	Answer
A	1:1
B	Zero
C	50:50
D	Full Scale

29. - T7D11

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

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

30. - T8A01

Which of the following is a form of amplitude modulation?

Select	Answer
A	Packet radio
B	Single sideband
C	Spread spectrum
D	Phase shift keying (PSK)

31. - T8B02

What is the impact of using excessive effective radiated power on a satellite uplink?

Select	Answer
A	Possibility of commanding the satellite to an improper mode
B	Overloading the satellite batteries
C	Possibility of rebooting the satellite control computer
D	Blocking access by other users

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	DMR
B	D-STAR
C	EchoLink
D	IRLP

33. - T8D12

Which of the following best describes an amateur radio mesh network?

Select	Answer
A	A satellite communications network using modified commercial satellite TV hardware
B	A wide-bandwidth digital voice mode employing DMR protocols
C	An amateur-radio based data network using commercial Wi-Fi equipment with modified firmware
D	An internet linking protocol used to network repeaters

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 vertically polarized antenna
C	A horizontally polarized antenna
D	A travelling-wave antenna

35. - T9B05

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

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

Figure T-2