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. - T0A08

Where should a fuse or circuit breaker be installed in a 120V AC power circuit?

Select	Answer
A	In parallel with the hot conductor only
B	In series with the hot and neutral conductors
C	In series with the hot conductor only
D	In parallel with the hot and neutral conductors

2. - T0B09

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

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

3. - T0C10

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

Select	Answer
A	It affects the average exposure to radiation
B	It takes into account the thermal effects of the final amplifier
C	It takes into account the antenna feed line loss
D	It affects the peak exposure to radiation

4. - T1A01

Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

Select	Answer
A	All these choices are correct
B	Providing personal radio communications for as many citizens as possible
C	Providing communications for international non-profit organizations
D	Advancing skills in the technical and communication phases of the radio art

5. - T1B07

Which of the following VHF/UHF band segments are limited to CW only?

Select	Answer
A	All these choices are correct
B	902.0 MHz to 902.1 MHz
C	219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
D	50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz

6. - T1C08

What is the normal term for an FCC-issued amateur radio license?

Select	Answer
A	Eight years
B	Five years
C	Life
D	Ten years

7. - T1D04

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

Select	Answer
A	When the music is transmitted above 1280 MHz
B	When incidental to an authorized retransmission of manned spacecraft communications
C	When the music produces no spurious emissions
D	When transmissions are limited to less than three minutes per hour

8. - T1E09

Which of the following are required for remote control operation?

Select	Answer
A	The control operator must be at the control point
B	A control operator is required at all times
C	All these choices are correct
D	The control operator must indirectly manipulate the controls

9. - T1F02

How often must you identify with your FCC-assigned call sign when using tactical call signs such as “Race Headquarters”?

Select	Answer
A	Once during every hour
B	At the end of every transmission
C	Never, the tactical call is sufficient
D	At the end of each communication and every ten minutes during a communication

10. - T2A03

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

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

11. - T2B06

What type of signaling uses pairs of audio tones?

Select	Answer
A	CTCSS
B	DTMF
C	GPRS
D	D-STAR

12. - T2C02

Which of the following are typical duties of a Net Control Station?

Select	Answer
A	Choose the regular net meeting time and frequency
B	Ensure that all stations checking into the net are properly licensed for operation on the net frequency
C	All these choices are correct
D	Call the net to order and direct communications between stations checking in

13. - T3A08

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

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

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C05

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

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

16. - T4A08

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

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

17. - T4B10

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

Select	Answer
A	500 Hz
B	2400 Hz
C	5000 Hz
D	1000 Hz

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Tesla
B	Henry
C	Farad
D	Hertz

19. - T5B10

Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

Select	Answer
A	-1 dB
B	-6 dB
C	-9 dB
D	-3 dB

20. - T5C04

What is the unit of inductance?

Select	Answer
A	The farad
B	The henry
C	The ohm
D	The coulomb

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. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Capacitance
B	Inductance
C	Field strength
D	Resistance

23. - T6B07

What causes a light-emitting diode (LED) to emit light?

Select	Answer
A	Forward current
B	Inductively-coupled RF signal
C	Reverse current
D	Capacitively-coupled RF signal

24. - T6C12

Which of the following is accurately represented in electrical schematics?

Select	Answer
A	Physical appearance of components
B	All these choices are correct
C	Component connections
D	Wire lengths

25. - T6D09

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

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

26. - T7A09

What is the function of the SSB/CW-FM switch on a VHF power amplifier?

Select	Answer
A	Change the frequency range of the amplifier to operate in the proper segment of the band
B	Reduce the received signal noise
C	Change the mode of the transmitted signal
D	Set the amplifier for proper operation in the selected mode

27. - T7B09

What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

Select	Answer
A	Add a high-pass filter to the TV antenna input
B	Add a preamplifier to the TV antenna input
C	Add a low-pass filter to the TV antenna input
D	Be sure all TV feed line coaxial connectors are installed properly

28. - T7C04

What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

Select	Answer
A	Full Scale
B	Zero
C	1:1
D	50:50

29. - T7D11

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

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

30. - T8A08

What is the approximate bandwidth of a typical single sideband (SSB) voice signal?

Select	Answer
A	6 kHz
B	1 kHz
C	3 kHz
D	15 kHz

31. - T8B04

What mode of transmission is commonly used by amateur radio satellites?

Select	Answer
A	CW/data
B	FM
C	All these choices are correct
D	SSB

32. - T8C02

Which of these items would be useful for a hidden transmitter hunt?

Select	Answer
A	A directional antenna
B	Calibrated SWR meter
C	A calibrated noise bridge
D	All these choices are correct

33. - T8D06

What does the abbreviation "PSK" mean?

Select	Answer
A	Packet Short Keying
B	Phase Shift Keying
C	Phased Slide Keying
D	Pulse Shift Keying

34. - T9A12

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

Select	Answer
A	It eliminates distortion caused by reflected signals
B	It radiates at a very high angle
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. - T9B01

What is a benefit of low SWR?

Select	Answer
A	Reduced television interference
B	Reduced signal loss
C	Less antenna wear
D	All these choices are correct