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. - T0A10

What hazard is caused by charging or discharging a battery too quickly?

Select	Answer
A	Half-wave rectification
B	Excess output ripple
C	Overheating or out-gassing
D	Inverse memory effect

2. - T0B07

Which of the following is an important safety rule to remember when using a crank-up tower?

Select	Answer
A	This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed
B	This type of tower must never be grounded
C	All these choices are correct
D	This type of tower must never be painted

3. - T0C13

Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

Select	Answer
A	The FCC
B	The local zoning board
C	The station licensee
D	Anyone who is near an antenna

4. - T1A01

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

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

5. - T1B09

Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

Select	Answer
A	To allow for transmitter frequency drift
B	So that modulation sidebands do not extend beyond the band edge
C	All these choices are correct
D	To allow for calibration error in the transmitter frequency display

6. - T1C05

Which of the following is a valid Technician class call sign format?

Select	Answer
A	KA1X
B	W1XX
C	All these choices are correct
D	KF1XXX

7. - T1D06

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

Select	Answer
A	The ITU maintains a list of words that are not permitted to be used on amateur frequencies
B	Any such language is prohibited
C	There is no such prohibition
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	All these choices are correct
B	Repeater operation
C	Controlling a model aircraft, boat, or car by amateur radio
D	Operating the station over the internet

9. - T1F08

What is the definition of third party communications?

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

10. - T2A06

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

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

11. - T2B01

How is a VHF/UHF transceiver’s “reverse” function used?

Select	Answer
A	To listen on a repeater’s output frequency
B	To reduce power output
C	To increase power output
D	To listen on a repeater’s input frequency

12. - T2C11

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

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

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 ionosphere
D	The mesosphere

14. - T3B10

What frequency range is referred to as HF?

Select	Answer
A	30 to 300 MHz
B	3 to 30 MHz
C	300 to 3000 MHz
D	300 to 3000 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	Faraday rotation
B	D region refraction
C	F2 region refraction
D	Tropospheric ducting

16. - T4A11

Where should the negative power return of a mobile transceiver be connected in a vehicle?

Select	Answer
A	Through the transceiver’s mounting bracket
B	To any metal part of the vehicle
C	At the 12 volt battery chassis ground
D	At the antenna mount

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	Set the squelch threshold so that receiver output audio is on all the time
C	Turn on the anti-squelch function
D	Enable squelch enhancement

18. - T5A02

Electrical power is measured in which of the following units?

Select	Answer
A	Amperes
B	Watt-hours
C	Volts
D	Watts

19. - T5B03

Which is equal to one kilovolt?

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

20. - T5C01

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

Select	Answer
A	Resistance
B	Capacitance
C	Tolerance
D	Inductance

21. - T5D06

What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

Select	Answer
A	3 ohms
B	8 ohms
C	48 ohms
D	16 ohms

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. - T6B02

What electronic component allows current to flow in only one direction?

Select	Answer
A	Driven element
B	Resistor
C	Diode
D	Fuse

24. - T6C08

What is component 9 in figure T-2?

Select	Answer
A	Variable resistor
B	Variable inductor
C	Variable capacitor
D	Variable transformer

25. - T6D04

Which of the following displays an electrical quantity as a numeric value?

Select	Answer
A	Transistor
B	Potentiometer
C	Relay
D	Meter

26. - T7A11

Where is an RF preamplifier installed?

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

27. - T7B05

How can fundamental overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

Select	Answer
A	Block the interfering signal with a filter on the amateur transmitter
B	Switch the transmitter from FM to SSB
C	Block the amateur signal with a filter at the antenna input of the affected receiver
D	Switch the transmitter to a narrow-band mode

28. - T7C05

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

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

29. - T7D09

What is the characteristic appearance of a cold tin-lead solder joint?

Select	Answer
A	Excessive solder
B	Dark black spots
C	A bright or shiny surface
D	A rough or lumpy surface

30. - T8A12

Which of the following is a disadvantage of FM compared with single sideband?

Select	Answer
A	FM signals are harder to tune
B	Only one signal can be received at a time
C	Voice quality is poorer
D	All these choices are correct

31. - T8B05

What is a satellite beacon?

Select	Answer
A	A transmission from a satellite that contains status information
B	An indicator light that shows where to point your antenna
C	A reflective surface on the satellite
D	The primary transmit antenna on the satellite

32. - T8C04

Which of the following is good procedure when contacting another station in a contest?

Select	Answer
A	Sign only the last two letters of your call if there are many other stations calling
B	Contact the station twice to be sure that you are in his log
C	Send only the minimum information needed for proper identification and the contest exchange
D	All these choices are correct

33. - T8D13

What is FT8?

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

34. - T9A05

Which of the following increases the resonant frequency of a dipole antenna?

Select	Answer
A	Shortening it
B	Inserting coils in series with radiating wires
C	Lengthening it
D	Adding capacitive loading to the ends of the radiating wires

35. - T9B02

What is the most common impedance of coaxial cables used in amateur radio?

Select	Answer
A	50 ohms
B	12 ohms
C	600 ohms
D	8 ohms

Figure T-2