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. - T0A07

Where should a lightning arrester be installed in a coaxial feed line?

Select	Answer
A	At the antenna feed point
B	On a grounded panel near where feed lines enter the building
C	At the ac power service panel
D	At the output connector of a transceiver

2. - T0B01

Which of the following is good practice when installing ground wires on a tower for lightning protection?

Select	Answer
A	All these choices are correct
B	Make sure all ground wire bends are right angles
C	Put a drip loop in the ground connection to prevent water damage to the ground system
D	Ensure that connections are short and direct

3. - T0C03

How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?

Select	Answer
A	It increases by a factor of 2
B	It increases by a factor of 3
C	It decreases by 50 percent
D	There is no adjustment allowed for lower duty cycle

4. - T1A07

What is the FCC Part 97 definition of a space station?

Select	Answer
A	An amateur station using amateur radio satellites for relay of signals
B	Any satellite orbiting Earth
C	An amateur station located more than 50 km above Earth's surface
D	A manned satellite orbiting Earth

5. - T1B02

Which amateurs may contact the International Space Station (ISS) on VHF bands?

Select	Answer
A	Any amateur holding a General class or higher license who has applied for and received approval from NASA
B	Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
C	Any amateur holding a General class or higher license
D	Any amateur holding a Technician class or higher license

6. - T1C07

Which of the following can result in revocation of the station license or suspension of the operator license?

Select	Answer
A	Failure to provide and maintain a correct email address with the FCC
B	Failure to have a copy of your license available at your station
C	Failure to obtain FCC type acceptance prior to using a home-built transmitter
D	Failure to inform the FCC of any changes in the amateur station following performance of an RF safety environmental evaluation

7. - T1D01

With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

Select	Answer
A	Any country banned from making such communications by the American Radio Relay League (ARRL)
B	Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications
C	Any country banned from such communications by the International Amateur Radio Union (IARU)
D	Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications

8. - T1E02

Who may be the control operator of a station communicating through an amateur satellite or space station?

Select	Answer
A	Any amateur allowed to transmit on the satellite uplink frequency
B	Only an Amateur Extra Class operator who is also an AMSAT member
C	Only an Amateur Extra Class operator
D	A General class or higher licensee with a satellite operator certification

9. - T1F09

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

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

10. - T2A06

Which of the following is required when making on-the-air test transmissions?

Select	Answer
A	Conduct tests only between 10 p.m. and 6 a.m. local time
B	Identify the transmitting station
C	All these choices are correct
D	Notify the FCC of the transmissions

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	CTCSS
B	Tone burst
C	Carrier squelch
D	DTMF

12. - T2C10

What information is contained in the preamble of a formal traffic message?

Select	Answer
A	The telephone number of the addressee
B	Information needed to track the message
C	The address of the intended recipient
D	The email address of the originating station

13. - T3A09

Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

Select	Answer
A	Either vertically or horizontally polarized antennas may be used for transmission or reception
B	Digital modes are unusable
C	FM voice is unusable
D	Both the transmitting and receiving antennas must be of the same polarization

14. - T3B09

What frequency range is referred to as UHF?

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

15. - T3C06

What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Select	Answer
A	F2 region refraction
B	Faraday rotation
C	D region refraction
D	Tropospheric ducting

16. - T4A02

Which of the following should be considered when selecting an accessory SWR meter?

Select	Answer
A	The frequency and power level at which the measurements will be made
B	The distance that the meter will be located from the antenna
C	The types of modulation being used at the station
D	All these choices are correct

17. - T4B03

How is squelch adjusted so that a weak FM signal can be heard?

Select	Answer
A	Turn up the audio level until it overcomes the squelch threshold
B	Turn on the anti-squelch function
C	Set the squelch threshold so that receiver output audio is on all the time
D	Enable squelch enhancement

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Siemens
B	Mhos
C	Ohms
D	Coulombs

19. - T5B11

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

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

20. - T5C01

What describes the ability to store energy in an electric field?

Select	Answer
A	Tolerance
B	Inductance
C	Capacitance
D	Resistance

21. - T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

Select	Answer
A	1.5 volts
B	0.25 volts
C	1 volt
D	2.5 volts

22. - T6A09

What electrical component is used to protect other circuit components from current overloads?

Select	Answer
A	Varactor
B	Thyratron
C	Fuse
D	All these choices are correct

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Reactor
B	Resistor
C	Transistor
D	Transformer

24. - T6C06

What is component 6 in figure T-2?

Select	Answer
A	Resistor
B	Regulator IC
C	Capacitor
D	Transistor

25. - T6D08

Which of the following is combined with an inductor to make a resonant circuit?

Select	Answer
A	Capacitor
B	Potentiometer
C	Zener diode
D	Resistor

26. - T7A04

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

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

27. - T7B04

Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

Select	Answer
A	Preamplifier
B	Band-pass filter
C	Ferrite choke
D	Low-pass filter

28. - T7C08

Which instrument can be used to determine SWR?

Select	Answer
A	Voltmeter
B	Iambic pentameter
C	Directional wattmeter
D	Ohmmeter

29. - T7D01

Which instrument would you use to measure electric potential?

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

30. - T8A06

Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

Select	Answer
A	Suppressed sideband
B	Lower sideband
C	Inverted sideband
D	Upper sideband

31. - T8B08

What is meant by the statement that a satellite is operating in U/V mode?

Select	Answer
A	The satellite frequencies are usually variable
B	The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
C	The satellite operates using ultraviolet frequencies
D	The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band

32. - T8C05

What is a grid locator?

Select	Answer
A	An instrument for neutralizing a final amplifier
B	A letter-number designator assigned to a geographic location
C	An instrument for radio direction finding
D	A letter-number designator assigned to an azimuth and elevation

33. - T8D11

What is an ARQ transmission system?

Select	Answer
A	A special transmission format limited to video signals
B	A system used to encrypt command signals to an amateur radio satellite
C	An error correction method in which the receiving station detects errors and sends a request for retransmission
D	A method of compressing data using autonomous reiterative Q codes prior to final encoding

34. - T9A04

What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna?

Select	Answer
A	All these choices are correct
B	It transmits only circularly polarized signals
C	It is mechanically fragile
D	It has low efficiency

35. - T9B05

What happens as the frequency of a signal in coaxial cable is increased?

Select	Answer
A	The characteristic impedance increases
B	The loss decreases
C	The characteristic impedance decreases
D	The loss increases

Figure T-2