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. - T0A04

What is the purpose of a fuse in an electrical circuit?

Select	Answer
A	All these choices are correct
B	To limit current to prevent shocks
C	To prevent power supply ripple from damaging a component
D	To remove power in case of overload

2. - T0B10

Which of the following is true when installing grounding conductors used for lightning protection?

Select	Answer
A	Use only non-insulated wire
B	Common grounds must be avoided
C	Wires must be carefully routed with precise right-angle bends
D	Sharp bends must be avoided

3. - T0C09

How can you make sure your station stays in compliance with RF safety regulations?

Select	Answer
A	By making sure your antennas have low SWR
B	All these choices are correct
C	By re-evaluating the station whenever an item in the transmitter or antenna system is changed
D	By informing the FCC of any changes made in your station

4. - T1A09

Who selects a Frequency Coordinator?

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

5. - T1B07

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

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

6. - T1C10

How soon after passing the examination for your first amateur radio license may you transmit on the amateur radio bands?

Select	Answer
A	Immediately on receiving your Certificate of Successful Completion of Examination (CSCE)
B	As soon as your operator/station license grant appears in the FCC’s license database
C	As soon as you receive your license in the mail from the FCC
D	As soon as your operator/station license grant appears on the ARRL website

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	The ITU maintains a list of words that are not permitted to be used on amateur frequencies
C	The FCC maintains a list of words that are not permitted to be used on amateur frequencies
D	Any such language is prohibited

8. - T1E06

When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

Select	Answer
A	As part of a multi-operator contest team
B	When using a club station whose trustee holds an Amateur Extra Class license
C	At no time
D	When designated as the control operator by an Amateur Extra Class licensee

9. - T1F05

What method of call sign identification is required for a station transmitting phone signals?

Select	Answer
A	Send the call sign using only a phone emission
B	Send the call sign followed by the indicator R
C	Send the call sign followed by the indicator RPT
D	Send the call sign using a CW or phone emission

10. - T2A12

What should you do before calling CQ?

Select	Answer
A	Make sure you are authorized to use that frequency
B	All these choices are correct
C	Listen first to be sure that no one else is using the frequency
D	Ask if the frequency is in use

11. - T2B03

Which of the following describes a linked repeater network?

Select	Answer
A	A single repeater with more than one receiver
B	A system of repeaters linked by APRS
C	Multiple repeaters with the same control operator
D	A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network

12. - T2C10

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

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

13. - T3A10

What effect does multi-path propagation have on data transmissions?

Select	Answer
A	Transmission rates must be decreased by a factor equal to the number of separate paths observed
B	No significant changes will occur if the signals are transmitted using FM
C	Transmission rates must be increased by a factor equal to the number of separate paths observed
D	Error rates are likely to increase

14. - T3B06

What is the formula for converting frequency to approximate wavelength in meters?

Select	Answer
A	Wavelength in meters equals 300 divided by frequency in megahertz
B	Wavelength in meters equals frequency in hertz divided by 300
C	Wavelength in meters equals frequency in megahertz divided by 300
D	Wavelength in meters equals frequency in hertz multiplied by 300

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	D region refraction
C	Tropospheric ducting
D	Faraday rotation

16. - T4A05

Where should an RF power meter be installed?

Select	Answer
A	In the power supply cable, as close as possible to the radio
B	At the power supply output
C	In the feed line, between the transmitter and antenna
D	In parallel with the push-to-talk line and the antenna

17. - T4B10

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

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

18. - T5A07

Why are metals generally good conductors of electricity?

Select	Answer
A	They have many free protons
B	They have relatively high density
C	All these choices are correct
D	They have many free electrons

19. - T5B04

Which is equal to one microvolt?

Select	Answer
A	One million volts
B	One one-thousandth of a volt
C	One thousand kilovolts
D	One one-millionth of a volt

20. - T5C06

What does the abbreviation “RF” mean?

Select	Answer
A	The real frequency transmitted as opposed to the apparent frequency
B	Radio frequency signals of all types
C	Reflective force in antenna transmission lines
D	The resonant frequency of a tuned circuit

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	2.5 volts
C	1 volt
D	0.25 volts

22. - T6A12

What type of switch is represented by component 3 in figure T-2?

Select	Answer
A	Single-pole single-throw
B	Double-pole double-throw
C	Double-pole single-throw
D	Single-pole double-throw

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	Regulator IC
B	Capacitor
C	Transistor
D	Resistor

25. - T6D08

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

Select	Answer
A	Resistor
B	Potentiometer
C	Zener diode
D	Capacitor

26. - T7A02

What is a transceiver?

Select	Answer
A	A device for matching feed line impedance to 50 ohms
B	A device that combines a receiver and transmitter
C	A device for converting receiver and transmitter frequencies to another band
D	A device for automatically sending and decoding Morse code

27. - T7B02

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

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

28. - T7C05

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

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

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

30. - T8A05

Which of the following types of signal has the narrowest bandwidth?

Select	Answer
A	SSB voice
B	CW
C	FM voice
D	Slow-scan TV

31. - T8B06

Which of the following are inputs to a satellite tracking program?

Select	Answer
A	The Keplerian elements
B	The satellite transmitted power
C	All these choices are correct
D	The last observed time of zero Doppler shift

32. - T8C10

What is required before using the EchoLink system?

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

33. - T8D08

Which of the following is included in packet radio transmissions?

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

34. - T9A11

What is antenna gain?

Select	Answer
A	The additional power that is required in the antenna when transmitting on a higher frequency
B	The increase in impedance on receive or transmit compared to a reference antenna
C	The increase in signal strength in a specified direction compared to a reference antenna
D	The additional power that is added to the transmitter power

35. - T9B08

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

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

Figure T-2