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. - T0A03

In the United States, what circuit does black wire insulation indicate in a three-wire 120 V cable?

Select	Answer
A	Black insulation is never used
B	Equipment ground
C	Hot
D	Neutral

2. - T0B06

What is the minimum safe distance from a power line to allow when installing an antenna?

Select	Answer
A	Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
B	Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
C	1/2 wavelength at the operating frequency
D	The height of the power line above ground

3. - T0C02

At which of the following frequencies does maximum permissible exposure have the lowest value?

Select	Answer
A	440 MHz
B	3.5 MHz
C	1296 MHz
D	50 MHz

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

5. - T1B10

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

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

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

7. - T1D06

What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

Select	Answer
A	There is no such prohibition
B	Any such language is prohibited
C	The ITU maintains a list of words that are not permitted to be used on amateur frequencies
D	The FCC maintains a list of words that are not permitted to be used on amateur frequencies

8. - T1E10

Which of the following is an example of remote control as defined in Part 97?

Select	Answer
A	Repeater operation
B	All these choices are correct
C	Operating the station over the internet
D	Controlling a model aircraft, boat, or car by amateur radio

9. - T1F09

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

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

10. - T2A03

What is a common repeater frequency offset in the 70 cm band?

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

11. - T2B05

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

Select	Answer
A	You need to talk louder
B	Your repeater offset is inverted
C	You are talking too loudly
D	Your transmit power is too high

12. - T2C05

What does the term “traffic” refer to in net operation?

Select	Answer
A	Requests to activate the net by a served agency
B	Messages exchanged by net stations
C	The number of stations checking in and out of a net
D	Operation by mobile or portable stations

13. - T3A11

Which region of the atmosphere can refract or bend HF and VHF radio waves?

Select	Answer
A	The troposphere
B	The stratosphere
C	The mesosphere
D	The ionosphere

14. - T3B01

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

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

15. - T3C11

Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

Select	Answer
A	Radio waves are not blocked by dust particles
B	Radio signals move somewhat faster than the speed of light
C	Radio waves are blocked by dust particles
D	The atmosphere refracts radio waves slightly

16. - T4A06

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

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

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

18. - T5A03

What is the name for the flow of electrons in an electric circuit?

Select	Answer
A	Voltage
B	Capacitance
C	Resistance
D	Current

19. - T5B05

Which is equal to 500 milliwatts?

Select	Answer
A	0.02 watts
B	5 watts
C	0.5 watts
D	50 watts

20. - T5C09

How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

Select	Answer
A	0.7 watts
B	23.8 watts
C	138 watts
D	3.8 watts

21. - T5D01

What formula is used to calculate current in a circuit?

Select	Answer
A	I = E / R
B	I = E  R
C	I = E - R
D	I = E + R

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Diode
B	Varistor
C	Inductor
D	Capacitor

23. - T6B04

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

Select	Answer
A	Pentagrid converter
B	Triode
C	Alternator
D	Transistor

24. - T6C03

What is component 2 in figure T-1?

Select	Answer
A	Transistor
B	Resistor
C	Connector
D	Indicator lamp

25. - T6D09

What is the name of a device that combines several semiconductors and other components into one package?

Select	Answer
A	Multi-pole relay
B	Transformer
C	Integrated circuit
D	Transducer

26. - T7A11

Where is an RF preamplifier installed?

Select	Answer
A	Between the transmitter and the antenna tuner
B	At the output of the transmitter power amplifier
C	Between the antenna and receiver
D	At the output of the receiver audio amplifier

27. - T7B03

Which of the following can cause radio frequency interference?

Select	Answer
A	Spurious emissions
B	Fundamental overload
C	Harmonics
D	All these choices are correct

28. - T7C11

What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

Select	Answer
A	It has more loss per foot
B	It requires special techniques to prevent moisture in the cable
C	It cannot be used for VHF or UHF antennas
D	It cannot be used at below freezing temperatures

29. - T7D11

Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

Select	Answer
A	Ensure that the applied voltages are correct
B	Ensure that the circuit is not powered
C	Ensure that the circuit is grounded
D	Ensure that the circuit is operating at the correct frequency

30. - T8A01

Which of the following is a form of amplitude modulation?

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

31. - T8B09

What causes spin fading of satellite signals?

Select	Answer
A	Circular polarized noise interference radiated from the sun
B	Interfering signals within the satellite uplink band
C	Rotation of the satellite and its antennas
D	Doppler shift of the received signal

32. - T8C03

What operating activity involves contacting as many stations as possible during a specified period?

Select	Answer
A	Public service events
B	Net operations
C	Contesting
D	Simulated emergency exercises

33. - T8D08

Which of the following is included in packet radio transmissions?

Select	Answer
A	A check sum that permits error detection
B	A header that contains the call sign of the station to which the information is being sent
C	Automatic repeat request in case of error
D	All these choices are correct

34. - T9A12

What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

Select	Answer
A	It radiates at a very high angle
B	It eliminates distortion caused by reflected signals
C	It has 10 times the power gain of a 1/4 wavelength whip
D	It has more gain than a 1/4-wavelength 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-1