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	All these choices are correct
C	To limit current to prevent shocks
D	To remove power in case of overload

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. - T0C01

What type of radiation are radio signals?

Select	Answer
A	Alpha radiation
B	Ionizing radiation
C	Non-ionizing radiation
D	Gamma radiation

4. - T1A03

What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

Select	Answer
A	It is required when transmitting emergency messages
B	It is encouraged
C	It is required when in contact with foreign stations
D	All these choices are correct

5. - T1B10

Where may SSB phone be used in amateur bands above 50 MHz?

Select	Answer
A	Only in sub-bands allocated to General class or higher licensees
B	On any band if the power is limited to 25 watts
C	Only on repeaters
D	In at least some segment of all these bands

6. - T1C05

Which of the following is a valid Technician class call sign format?

Select	Answer
A	KA1X
B	All these choices are correct
C	W1XX
D	KF1XXX

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	Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
C	Never
D	When such communications are directly related to the immediate safety of human life or protection of property

8. - T1E06

When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

Select	Answer
A	When designated as the control operator by an Amateur Extra Class licensee
B	At no time
C	When using a club station whose trustee holds an Amateur Extra Class license
D	As part of a multi-operator contest team

9. - T1F11

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

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

10. - T2A09

Which of the following indicates that a station is listening on a repeater and looking for a contact?

Select	Answer
A	The repeater call sign followed by the station’s call sign
B	“CQ CQ” followed by the repeater’s call sign
C	“QSY” followed by your call sign
D	The station’s call sign followed by the word “monitoring”

11. - T2B07

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

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

12. - T2C09

Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

Select	Answer
A	No
B	Yes, but only when part of a FEMA emergency plan
C	Yes, but only when part of a RACES emergency plan
D	Yes, but only in situations involving the immediate safety of human life or protection of property

13. - T3A08

What is a likely cause of irregular fading of signals propagated by the ionosphere?

Select	Answer
A	Interference from thunderstorms
B	Frequency shift due to Faraday rotation
C	Intermodulation distortion
D	Random combining of signals arriving via different paths

14. - T3B04

What is the velocity of a radio wave traveling through free space?

Select	Answer
A	Speed of sound
B	Speed inversely proportional to its wavelength
C	Speed that increases as the frequency increases
D	Speed of light

15. - T3C05

Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

Select	Answer
A	Knife-edge diffraction
B	Doppler shift
C	Faraday rotation
D	Quantum tunneling

16. - T4A12

What is an electronic keyer?

Select	Answer
A	A device for voice activated switching from receive to transmit
B	A device that assists in manual sending of Morse code
C	A device for switching antennas from transmit to receive
D	An interlock to prevent unauthorized use of a radio

17. - T4B07

What does a DMR “code plug” contain?

Select	Answer
A	Your call sign in CW for automatic identification
B	The codec for digitizing audio
C	Access information for repeaters and talkgroups
D	The DMR software version

18. - T5A09

Which of the following describes alternating current?

Select	Answer
A	Current that alternates between a positive direction and zero
B	All these answers are correct
C	Current that alternates between positive and negative directions
D	Current that alternates between a negative direction and zero

19. - T5B11

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

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

20. - T5C08

What is the formula used to calculate electrical power (P) in a DC circuit?

Select	Answer
A	P = I  E
B	P = E – I
C	P = I + E
D	P = E / I

21. - T5D09

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

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

22. - T6A06

What type of electrical component stores energy in a magnetic field?

Select	Answer
A	Inductor
B	Diode
C	Capacitor
D	Varistor

23. - T6B12

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

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

24. - T6C07

What is component 8 in figure T-2?

Select	Answer
A	Inductor
B	Resistor
C	Regulator IC
D	Light emitting diode

25. - T6D05

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

Select	Answer
A	Phase inverter
B	Filter
C	Oscillator
D	Regulator

26. - T7A03

Which of the following is used to convert a signal from one frequency to another?

Select	Answer
A	Phase splitter
B	Mixer
C	Amplifier
D	Inverter

27. - T7B01

What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

Select	Answer
A	Talk louder into the microphone
B	Change to a higher power level
C	Let the transceiver cool off
D	Talk farther away from the microphone

28. - T7C06

What does an SWR reading of 4:1 indicate?

Select	Answer
A	Impedance mismatch
B	Gain of +4 dB
C	Loss of -4 dB
D	Good impedance match

29. - T7D04

Which instrument is used to measure electric current?

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

30. - T8A09

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

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

31. - T8B07

What is Doppler shift in reference to satellite communications?

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

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	D-STAR
C	DMR
D	EchoLink

33. - T8D03

What kind of data can be transmitted by APRS?

Select	Answer
A	All these choices are correct
B	Text messages
C	Weather data
D	GPS position data

34. - T9A03

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

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

35. - T9B06

Which of the following RF connector types is most suitable for frequencies above 400 MHz?

Select	Answer
A	UHF (PL-259/SO-239)
B	DB-25
C	RS-213
D	Type N

Figure T-2