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. - T0A04

What is the purpose of a fuse in an electrical circuit?

Select	Answer
A	To prevent power supply ripple from damaging a component
B	To limit current to prevent shocks
C	To remove power in case of overload
D	All these choices are correct

2. - T0B10

Which of the following is true when installing grounding conductors used for lightning protection?

Select	Answer
A	Use only non-insulated wire
B	Wires must be carefully routed with precise right-angle bends
C	Sharp bends must be avoided
D	Common grounds must be avoided

3. - T0C12

How does RF radiation differ from ionizing radiation (radioactivity)?

Select	Answer
A	RF radiation is limited in range to a few feet
B	RF radiation can only be detected with an RF dosimeter
C	RF radiation is perfectly safe
D	RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA

4. - T1A04

How many operator/primary station license grants may be held by any one person?

Select	Answer
A	One
B	One for each band on which the person plans to operate
C	No more than two
D	One for each permanent station location from which the person plans to operate

5. - T1B02

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

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

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

7. - T1D02

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

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

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 location of the station’s transmitting apparatus
D	The mailing address of the station licensee

9. - T1F11

Which of the following is a requirement for the issuance of a club station license grant?

Select	Answer
A	The club must have at least four members
B	All these choices are correct
C	The trustee must have an Amateur Extra Class operator license grant
D	The club must be registered with the American Radio Relay League

10. - T2A06

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

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

11. - T2B07

How can you join a digital repeater’s “talkgroup”?

Select	Answer
A	Program your radio with the group’s ID or code
B	Sign your call after the courtesy tone
C	Join the repeater owner’s club
D	Register your radio with the local FCC office

12. - T2C08

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

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

13. - T3A02

What is the effect of vegetation on UHF and microwave signals?

Select	Answer
A	Knife-edge diffraction
B	Absorption
C	Polarization rotation
D	Amplification

14. - T3B11

What is the approximate velocity of a radio wave in free space?

Select	Answer
A	300,000,000 meters per second
B	150,000 meters per second
C	300,000,000 miles per hour
D	150,000 miles per hour

15. - T3C06

What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Select	Answer
A	F2 region refraction
B	Tropospheric ducting
C	D region refraction
D	Faraday rotation

16. - T4A02

Which of the following should be considered when selecting an accessory SWR meter?

Select	Answer
A	All these choices are correct
B	The distance that the meter will be located from the antenna
C	The types of modulation being used at the station
D	The frequency and power level at which the measurements will be made

17. - T4B12

What is the result of tuning an FM receiver above or below a signal’s frequency?

Select	Answer
A	Sideband inversion
B	Change in audio pitch
C	Generation of a heterodyne tone
D	Distortion of the signal’s audio

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Ohms
B	Mhos
C	Siemens
D	Coulombs

19. - T5B08

Which is equal to 1,000,000 picofarads?

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

20. - T5C10

How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

Select	Answer
A	4.8 watts
B	14.5 watts
C	0.208 watts
D	30 watts

21. - T5D11

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

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

22. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Field strength
B	Capacitance
C	Inductance
D	Resistance

23. - T6B12

What are the names of the electrodes of a bipolar junction transistor?

Select	Answer
A	Emitter, base, collector
B	Signal, bias, power
C	Input, output, supply
D	Pole one, pole two, output

24. - T6C01

What is the name of an electrical wiring diagram that uses standard component symbols?

Select	Answer
A	Bill of materials
B	Flow chart
C	Connector pinout
D	Schematic

25. - T6D11

Which of the following is a resonant or tuned circuit?

Select	Answer
A	An inductor and a capacitor in series or parallel
B	A resistor circuit used for reducing standing wave ratio
C	A circuit designed to provide high-fidelity audio
D	A linear voltage regulator

26. - T7A05

What is the name of a circuit that generates a signal at a specific frequency?

Select	Answer
A	Low-pass filter
B	Phase modulator
C	Oscillator
D	Reactance modulator

27. - T7B09

What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

Select	Answer
A	Be sure all TV feed line coaxial connectors are installed properly
B	Add a preamplifier to the TV antenna input
C	Add a low-pass filter to the TV antenna input
D	Add a high-pass filter to the TV antenna input

28. - T7C08

Which instrument can be used to determine SWR?

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

29. - T7D04

Which instrument is used to measure electric current?

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

30. - T8A09

What is the approximate bandwidth of a VHF repeater FM voice signal?

Select	Answer
A	About 150 kHz
B	Less than 500 Hz
C	Between 10 and 15 kHz
D	Between 50 and 125 kHz

31. - T8B07

What is Doppler shift in reference to satellite communications?

Select	Answer
A	An observed change in signal frequency caused by relative motion between the satellite and Earth station
B	A mode where the satellite receives signals on one band and transmits on another
C	A change in the satellite orbit
D	A special digital communications mode for some satellites

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. - T8D02

What is a “talkgroup” on a DMR repeater?

Select	Answer
A	A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
B	A net that meets at a specified time
C	A group of operators sharing common interests
D	A way for groups of users to share a channel at different times without hearing other users on the channel

34. - T9A04

What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna?

Select	Answer
A	It is mechanically fragile
B	It transmits only circularly polarized signals
C	It has low efficiency
D	All these choices are correct

35. - T9B02

What is the most common impedance of coaxial cables used in amateur radio?

Select	Answer
A	12 ohms
B	600 ohms
C	50 ohms
D	8 ohms