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

2. - T0B03

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

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

3. - T0C05

Why do exposure limits vary with frequency?

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

4. - T1A09

Who selects a Frequency Coordinator?

Select	Answer
A	The local chapter of the Office of National Council of Independent Frequency Coordinators
B	FCC Regional Field Office
C	Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
D	The FCC Office of Spectrum Management and Coordination Policy

5. - T1B06

On which HF bands does a Technician class operator have phone privileges?

Select	Answer
A	None
B	30 meter band only
C	10 meter band only
D	80 meter, 40 meter, 15 meter, and 10 meter bands

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

7. - T1D03

When is it permissible to transmit messages encoded to obscure their meaning?

Select	Answer
A	Only when transmitting certain approved digital codes
B	Only during contests
C	Never
D	Only when transmitting control commands to space stations or radio control craft

8. - T1E01

When may an amateur station transmit without a control operator?

Select	Answer
A	Never
B	When the transmitting station is an auxiliary station
C	When the station licensee is away and another licensed amateur is using the station
D	When using automatic control, such as in the case of a repeater

9. - T1F08

What is the definition of third party communications?

Select	Answer
A	Amateur radio communications where three stations are in communications with one another
B	A message from a control operator to another amateur station control operator on behalf of another person
C	Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments
D	Operation when the transmitting equipment is licensed to a person other than the control operator

10. - T2A05

How should you respond to a station calling CQ?

Select	Answer
A	Transmit the other station’s call sign followed by your call sign
B	Transmit "CQ" followed by the other station’s call sign
C	Transmit a signal report followed by your call sign
D	Transmit your call sign followed by the other station’s call sign

11. - T2B09

Why are simplex channels designated in the VHF/UHF band plans?

Select	Answer
A	So stations within range of each other can communicate without tying up a repeater
B	For contest operation
C	So stations with simple transmitters can access the repeater without automated offset
D	For working DX only

12. - T2C11

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

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

13. - T3A03

What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

Select	Answer
A	Vertical
B	Right-hand circular
C	Left-hand circular
D	Horizontal

14. - T3B01

What is the relationship between the electric and magnetic fields of an electromagnetic wave?

Select	Answer
A	They are in parallel
B	They are at right angles
C	They travel at different speeds
D	They revolve in opposite directions

15. - T3C07

What band is best suited for communicating via meteor scatter?

Select	Answer
A	6 meters
B	2 meters
C	70 centimeters
D	33 centimeters

16. - T4A08

Which of the following conductors is preferred for bonding at RF?

Select	Answer
A	Copper braid removed from coaxial cable
B	Steel wire
C	Twisted-pair cable
D	Flat copper strap

17. - T4B09

How is a specific group of stations selected on a digital voice transceiver?

Select	Answer
A	By retrieving the frequencies from transceiver memory
B	By activating automatic identification
C	By enabling the group’s CTCSS tone
D	By entering the group’s identification code

18. - T5A10

Which term describes the rate at which electrical energy is used?

Select	Answer
A	Current
B	Resistance
C	Voltage
D	Power

19. - T5B06

Which is equal to 3000 milliamperes?

Select	Answer
A	0.3 amperes
B	3,000,000 amperes
C	3 amperes
D	0.003 amperes

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	mh
B	Mhz
C	MHz
D	MH

21. - T5D13

In which type of circuit is DC current the same through all components?

Select	Answer
A	Series
B	Branch
C	Parallel
D	Resonant

22. - T6A07

What electrical component is typically constructed as a coil of wire?

Select	Answer
A	Inductor
B	Switch
C	Diode
D	Capacitor

23. - T6B04

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

Select	Answer
A	Alternator
B	Pentagrid converter
C	Transistor
D	Triode

24. - T6C10

What is component 3 in figure T-3?

Select	Answer
A	Variable capacitor
B	Variable inductor
C	Connector
D	Meter

25. - T6D05

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

Select	Answer
A	Filter
B	Regulator
C	Oscillator
D	Phase inverter

26. - T7A08

Which of the following describes combining speech with an RF carrier signal?

Select	Answer
A	Impedance matching
B	Modulation
C	Oscillation
D	Low-pass filtering

27. - T7B02

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

Select	Answer
A	The deviation of an FM transmitter is set too low
B	The microphone gain of the transmitter is turned up too high
C	The audio amplifier of the transmitter is overloaded
D	The receiver is unable to reject strong signals outside the AM or FM band

28. - T7C06

What does an SWR reading of 4:1 indicate?

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

29. - T7D08

Which of the following types of solder should not be used for radio and electronic applications?

Select	Answer
A	Acid-core solder
B	Rosin-core solder
C	Lead-tin solder
D	Tin-copper solder

30. - T8A01

Which of the following is a form of amplitude modulation?

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

31. - T8B10

What is a LEO satellite?

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

32. - T8C10

What is required before using the EchoLink system?

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

33. - T8D13

What is FT8?

Select	Answer
A	A wideband FM voice mode
B	A digital mode capable of low signal-to-noise operation
C	An eight channel multiplex mode for FM repeaters
D	A digital slow-scan TV mode with forward error correction and automatic color compensation

34. - T9A06

Which of the following types of antenna offers the greatest gain?

Select	Answer
A	Isotropic
B	J pole
C	5/8 wave vertical
D	Yagi

35. - T9B08

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

Select	Answer
A	Multiple connectors in the line
B	Water intrusion into coaxial connectors
C	All these choices are correct
D	High SWR

Figure T-3