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. - T0A11

What hazard exists in a power supply immediately after turning it off?

Select	Answer
A	Leakage flux in the power transformer
B	Voltage transients from kickback diodes
C	Circulating currents in the dc filter
D	Charge stored in filter capacitors

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

3. - T0C07

What hazard is created by touching an antenna during a transmission?

Select	Answer
A	RF burn to skin
B	Radiation poisoning
C	Electrocution
D	All these choices are correct

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

5. - T1B11

What is the maximum peak envelope power output for Technician class operators in their HF band segments?

Select	Answer
A	200 watts
B	100 watts
C	50 watts
D	10 watts

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

7. - T1D05

When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

Select	Answer
A	When selling amateur radio equipment and not on a regular basis
B	When no profit is made on the sale
C	When the equipment is not the personal property of either the station licensee, or the control operator, or their close relatives
D	Never

8. - T1E11

Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

Select	Answer
A	The station custodian
B	The station licensee
C	The third party participant
D	The person operating the station equipment

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

10. - T2A08

What is the meaning of the procedural signal “CQ”?

Select	Answer
A	Call on the quarter hour
B	Only the called station should transmit
C	Test transmission, no reply expected
D	Calling any station

11. - T2B12

What is the purpose of the color code used on DMR repeater systems?

Select	Answer
A	Identifies the codec used
B	Must match the repeater color code for access
C	Defines the minimum signal level required for access
D	Defines the frequency pair to use

12. - T2C03

What technique is used to ensure that voice messages containing unusual words are received correctly?

Select	Answer
A	All these choices are correct
B	Speak very loudly into the microphone
C	Spell the words using a standard phonetic alphabet
D	Send the words by voice and Morse code

13. - T3A01

Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

Select	Answer
A	All these choices are correct
B	Multipath propagation cancels or reinforces signals
C	The signal path encounters different concentrations of water vapor
D	VHF ionospheric propagation is very sensitive to path length

14. - T3B09

What frequency range is referred to as UHF?

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

15. - T3C07

What band is best suited for communicating via meteor scatter?

Select	Answer
A	6 meters
B	70 centimeters
C	2 meters
D	33 centimeters

16. - T4A08

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

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

17. - T4B11

Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

Select	Answer
A	The codec type being used
B	Your call sign
C	All these choices are correct
D	Your output power

18. - T5A12

What describes the number of times per second that an alternating current makes a complete cycle?

Select	Answer
A	Frequency
B	Wavelength
C	Speed
D	Pulse rate

19. - T5B08

Which is equal to 1,000,000 picofarads?

Select	Answer
A	1 microfarad
B	0.001 microfarads
C	1,000,000,000 microfarads
D	1000 microfarads

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. - T5D14

In which type of circuit is voltage the same across all components?

Select	Answer
A	Series
B	Branch
C	Resonant
D	Parallel

22. - T6A10

Which of the following battery chemistries is rechargeable?

Select	Answer
A	Lead-acid
B	All these choices are correct
C	Nickel-metal hydride
D	Lithium-ion

23. - T6B09

What are the names for the electrodes of a diode?

Select	Answer
A	Plus and minus
B	Source and drain
C	Anode and cathode
D	Gate and base

24. - T6C10

What is component 3 in figure T-3?

Select	Answer
A	Meter
B	Variable capacitor
C	Connector
D	Variable inductor

25. - T6D06

What component changes 120 V AC power to a lower AC voltage for other uses?

Select	Answer
A	Variable capacitor
B	Transistor
C	Transformer
D	Diode

26. - T7A04

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

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

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

28. - T7C09

Which of the following causes failure of coaxial cables?

Select	Answer
A	Solder flux contamination
B	Moisture contamination
C	Rapid fluctuation in transmitter output power
D	Operation at 100% duty cycle for an extended period

29. - T7D08

Which of the following types of solder should not be used for radio and electronic applications?

Select	Answer
A	Rosin-core solder
B	Lead-tin solder
C	Acid-core solder
D	Tin-copper solder

30. - T8A05

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

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

31. - T8B07

What is Doppler shift in reference to satellite communications?

Select	Answer
A	An observed change in signal frequency caused by relative motion between the satellite and Earth station
B	A special digital communications mode for some satellites
C	A mode where the satellite receives signals on one band and transmits on another
D	A change in the satellite orbit

32. - T8C04

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

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

33. - T8D07

Which of the following describes DMR?

Select	Answer
A	An automatic position tracking mode for FM mobiles communicating through repeaters
B	An automatic computer logging technique for hands-off logging when communicating while operating a vehicle
C	A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
D	A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction

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

35. - T9B06

Which of the following RF connector types is most suitable for frequencies above 400 MHz?

Select	Answer
A	Type N
B	DB-25
C	RS-213
D	UHF (PL-259/SO-239)

Figure T-3