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. - T0A02

What health hazard is presented by electrical current flowing through the body?

Select	Answer
A	All these choices are correct
B	It may cause involuntary muscle contractions
C	It may disrupt the electrical functions of cells
D	It may cause injury by heating tissue

2. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	All these choices are correct
B	The antenna will not work properly because of induced voltages
C	The antenna could contact high-voltage power lines
D	The 60 Hz radiations from the feed line may increase the SWR

3. - T0C05

Why do exposure limits vary with frequency?

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

4. - T1A11

When is willful interference to other amateur radio stations permitted?

Select	Answer
A	At any time, stations in the Amateur Radio Service are not protected from willful interference
B	When making short test transmissions
C	To stop another amateur station that is breaking the FCC rules
D	At no time

5. - T1B03

Which frequency is in the 6 meter amateur band?

Select	Answer
A	28.50 MHz
B	49.00 MHz
C	222.15 MHz
D	52.525 MHz

6. - T1C01

For which license classes are new licenses currently available from the FCC?

Select	Answer
A	Technician, General, Amateur Extra
B	Technician, Technician Plus, General, Amateur Extra
C	Novice, Technician Plus, General, Advanced
D	Novice, Technician, General, Amateur Extra

7. - T1D07

What types of amateur stations can automatically retransmit the signals of other amateur stations?

Select	Answer
A	Earth, repeater, or space stations
B	Auxiliary, beacon, or Earth stations
C	Repeater, auxiliary, or space stations
D	Beacon, repeater, or space stations

8. - T1E03

Who must designate the station control operator?

Select	Answer
A	The frequency coordinator
B	Any licensed operator
C	The station licensee
D	The FCC

9. - T1F09

What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

Select	Answer
A	Repeater station
B	Beacon station
C	Message forwarding station
D	Earth station

10. - T2A01

What is a common repeater frequency offset in the 2 meter band?

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

11. - T2B02

What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

Select	Answer
A	DTMF
B	CTCSS
C	Tone burst
D	Carrier squelch

12. - T2C11

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

Select	Answer
A	A box on the message form that indicates that the message was received and/or relayed
B	The number of words or word equivalents in the text portion of the message
C	A list of stations that have relayed the message
D	The call sign of the originating station

13. - T3A06

What is the meaning of the term “picket fencing”?

Select	Answer
A	Local vs long-distance communications
B	Rapid flutter on mobile signals due to multipath propagation
C	Alternating transmissions during a net operation
D	A type of ground system used with vertical antennas

14. - T3B10

What frequency range is referred to as HF?

Select	Answer
A	300 to 3000 MHz
B	30 to 300 MHz
C	300 to 3000 kHz
D	3 to 30 MHz

15. - T3C01

Why are simplex UHF signals rarely heard beyond their radio horizon?

Select	Answer
A	They are too weak to go very far
B	UHF signals are usually not propagated by the ionosphere
C	FCC regulations prohibit them from going more than 50 miles
D	UHF signals are absorbed by the ionospheric D region

16. - T4A06

What signals are used in a computer-radio interface for digital mode operation?

Select	Answer
A	Antenna and RF power
B	Receive audio, transmit audio, and transmitter keying
C	NMEA GPS location and DC power
D	Receive and transmit mode, status, and location

17. - T4B06

Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

Select	Answer
A	The bandwidth selection
B	The AGC or limiter
C	The RIT or Clarifier
D	The tone squelch

18. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Amperes
B	Ohms
C	Watts
D	Volts

19. - T5B02

Which is equal to 1,500,000 hertz?

Select	Answer
A	1500 kHz
B	1500 MHz
C	15 GHz
D	150 kHz

20. - T5C08

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

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

21. - T5D05

What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

Select	Answer
A	8 ohms
B	18 ohms
C	13.5 ohms
D	0.125 ohms

22. - T6A06

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

Select	Answer
A	Diode
B	Inductor
C	Capacitor
D	Varistor

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Reactor
B	Transformer
C	Resistor
D	Transistor

24. - T6C08

What is component 9 in figure T-2?

Select	Answer
A	Variable capacitor
B	Variable resistor
C	Variable transformer
D	Variable inductor

25. - T6D04

Which of the following displays an electrical quantity as a numeric value?

Select	Answer
A	Transistor
B	Relay
C	Meter
D	Potentiometer

26. - T7A04

Which term describes the ability of a receiver to discriminate between multiple signals?

Select	Answer
A	Sensitivity
B	Selectivity
C	Harmonic distortion
D	Discrimination ratio

27. - T7B06

Which of the following actions should you take if a neighbor tells you that your station’s transmissions are interfering with their radio or TV reception?

Select	Answer
A	Immediately turn off your transmitter and contact the nearest FCC office for assistance
B	Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
C	All these choices are correct
D	Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel

28. - T7C05

Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

Select	Answer
A	To protect the output amplifier transistors
B	To comply with FCC rules on spectral purity
C	Because power supplies cannot supply enough current at high SWR
D	To lower the SWR on the transmission line

29. - T7D01

Which instrument would you use to measure electric potential?

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

30. - T8A11

What is the approximate bandwidth required to transmit a CW signal?

Select	Answer
A	150 Hz
B	1000 Hz
C	15 kHz
D	2.4 kHz

31. - T8B10

What is a LEO satellite?

Select	Answer
A	A satellite in low earth orbit
B	A satellite in low energy operation mode
C	A sun synchronous satellite
D	A highly elliptical orbit satellite

32. - T8C10

What is required before using the EchoLink system?

Select	Answer
A	Purchase a license to use the EchoLink software
B	Complete the required EchoLink training
C	All these choices are correct
D	Register your call sign and provide proof of license

33. - T8D07

Which of the following describes DMR?

Select	Answer
A	An automatic computer logging technique for hands-off logging when communicating while operating a vehicle
B	A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction
C	A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
D	An automatic position tracking mode for FM mobiles communicating through repeaters

34. - T9A08

What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

Select	Answer
A	19
B	50
C	12
D	112

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	Type N
D	RS-213

Figure T-2