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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?

SelectAnswer
AAll these choices are correct
BTo limit current to prevent shocks
CTo remove power in case of overload
DTo prevent power supply ripple from damaging a component

2. - T0B10

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

SelectAnswer
AWires must be carefully routed with precise right-angle bends
BCommon grounds must be avoided
CSharp bends must be avoided
DUse only non-insulated wire

3. - T0C10

Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

SelectAnswer
AIt affects the peak exposure to radiation
BIt affects the average exposure to radiation
CIt takes into account the antenna feed line loss
DIt takes into account the thermal effects of the final amplifier

4. - T1A10

What is the Radio Amateur Civil Emergency Service (RACES)?

SelectAnswer
AAn emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization
BA radio service using amateur frequencies for emergency management or civil defense communications
CA radio service using amateur stations for emergency management or civil defense communications
DAll these choices are correct

5. - T1B08

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

SelectAnswer
AU.S. amateurs must give foreign amateur stations priority in those segments
BU.S. amateurs may find non-amateur stations in those segments, and must avoid interfering with them
CInternational communications are not permitted in those segments
DDigital transmissions are not permitted in those segments

6. - T1C02

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

SelectAnswer
AAny licensed amateur
BOnly a licensed amateur with a General or Amateur Extra Class license
COnly a licensed amateur with an Amateur Extra Class license
DOnly a licensed amateur who has been licensed continuously for more than 10 years

7. - T1D04

Under what conditions is an amateur station authorized to transmit music using a phone emission?

SelectAnswer
AWhen the music produces no spurious emissions
BWhen incidental to an authorized retransmission of manned spacecraft communications
CWhen the music is transmitted above 1280 MHz
DWhen transmissions are limited to less than three minutes per hour

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

SelectAnswer
AThe frequencies printed on the license grant
BThe frequency authorized by the frequency coordinator
CThe class of operator license held by the control operator
DThe highest class of operator license held by anyone on the premises

9. - T1F06

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

SelectAnswer
AAll these choices are correct
BKL7CC slant W3
CKL7CC stroke W3
DKL7CC slash W3

10. - T2A10

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

SelectAnswer
AA voluntary guideline for using different modes or activities within an amateur band
BA list of available net frequencies
CA plan devised by a club to indicate frequency band usage
DA list of operating schedules

11. - T2B05

What would cause your FM transmission audio to be distorted on voice peaks?

SelectAnswer
AYour transmit power is too high
BYou need to talk louder
CYour repeater offset is inverted
DYou are talking too loudly

12. - T2C11

What is meant by “check” in a radiogram header?

SelectAnswer
AThe call sign of the originating station
BA list of stations that have relayed the message
CA box on the message form that indicates that the message was received and/or relayed
DThe number of words or word equivalents in the text portion of the message

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?

SelectAnswer
AChange from vertical to horizontal polarization
BIncrease the antenna SWR
CTry the long path
DTry to find a path that reflects signals to the repeater

14. - T3B05

What is the relationship between wavelength and frequency?

SelectAnswer
AWavelength and frequency increase as path length increases
BWavelength gets longer as frequency increases
CWavelength gets shorter as frequency increases
DWavelength and frequency are unrelated

15. - T3C09

What is generally the best time for long-distance 10 meter band propagation via the F region?

SelectAnswer
AFrom dawn to shortly after sunset during periods of high sunspot activity
BFrom dawn to shortly after sunset during periods of low sunspot activity
CFrom shortly after sunset to dawn during periods of low sunspot activity
DFrom shortly after sunset to dawn during periods of high sunspot activity

16. - T4A02

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

SelectAnswer
AThe types of modulation being used at the station
BAll these choices are correct
CThe distance that the meter will be located from the antenna
DThe frequency and power level at which the measurements will be made

17. - T4B10

Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

SelectAnswer
A5000 Hz
B2400 Hz
C1000 Hz
D500 Hz

18. - T5A01

Electrical current is measured in which of the following units?

SelectAnswer
AOhms
BVolts
CAmperes
DWatts

19. - T5B13

Which is equal to 2425 MHz?

SelectAnswer
A2425 GHz
B0.002425 GHz
C2.425 GHz
D24.25 GHz

20. - T5C13

What is the abbreviation for kilohertz?

SelectAnswer
Akhz
BkHz
CkhZ
DKHZ

21. - T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

SelectAnswer
A0.25 volts
B1.5 volts
C1 volt
D2.5 volts

22. - T6A08

What is the function of an SPDT switch?

SelectAnswer
AA single circuit is opened or closed
BA single circuit is switched between one of two other circuits
CTwo circuits are opened or closed
DTwo circuits are each switched between one of two other circuits

23. - T6B04

Which of the following components can consist of three regions of semiconductor material?

SelectAnswer
AAlternator
BTransistor
CTriode
DPentagrid converter

24. - T6C06

What is component 6 in figure T-2?

SelectAnswer
ACapacitor
BTransistor
CRegulator IC
DResistor

25. - T6D05

What type of circuit controls the amount of voltage from a power supply?

SelectAnswer
APhase inverter
BOscillator
CFilter
DRegulator

26. - T7A11

Where is an RF preamplifier installed?

SelectAnswer
ABetween the transmitter and the antenna tuner
BAt the output of the receiver audio amplifier
CBetween the antenna and receiver
DAt the output of the transmitter power amplifier

27. - T7B02

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

SelectAnswer
AThe microphone gain of the transmitter is turned up too high
BThe deviation of an FM transmitter is set too low
CThe audio amplifier of the transmitter is overloaded
DThe receiver is unable to reject strong signals outside the AM or FM band

28. - T7C06

What does an SWR reading of 4:1 indicate?

SelectAnswer
ALoss of -4 dB
BGain of +4 dB
CGood impedance match
DImpedance mismatch

29. - T7D01

Which instrument would you use to measure electric potential?

SelectAnswer
AAn ammeter
BAn ohmmeter
CA wavemeter
DA voltmeter

30. - T8A04

Which type of modulation is commonly used for VHF and UHF voice repeaters?

SelectAnswer
AFM or PM
BSSB
CAM
DPSK

31. - T8B10

What is a LEO satellite?

SelectAnswer
AA highly elliptical orbit satellite
BA satellite in low energy operation mode
CA satellite in low earth orbit
DA sun synchronous satellite

32. - T8C07

What is Voice Over Internet Protocol (VoIP)?

SelectAnswer
AA method of delivering voice communications over the internet using digital techniques
BA set of rules specifying how to identify your station when linked over the internet to another station
CA technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
DA technique employed to “spot” DX stations via the internet

33. - T8D13

What is FT8?

SelectAnswer
AA wideband FM voice mode
BAn eight channel multiplex mode for FM repeaters
CA digital slow-scan TV mode with forward error correction and automatic color compensation
DA digital mode capable of low signal-to-noise operation

34. - T9A09

What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

SelectAnswer
A112
B6
C236
D50

35. - T9B08

Which of the following is a source of loss in coaxial feed line?

SelectAnswer
AHigh SWR
BMultiple connectors in the line
CWater intrusion into coaxial connectors
DAll these choices are correct

Figure T-2