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

2. - T0B10

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

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

3. - T0C10

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

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

4. - T1A09

Who selects a Frequency Coordinator?

Select	Answer
A	FCC Regional Field Office
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	The FCC Office of Spectrum Management and Coordination Policy

5. - T1B01

Which of the following frequency ranges are available for phone operation by Technician licensees?

Select	Answer
A	28.050 MHz to 28.150 MHz
B	28.500 MHz to 28.600 MHz
C	28.300 MHz to 28.500 MHz
D	28.100 MHz to 28.300 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	As soon as your operator/station license grant appears on the ARRL website
B	As soon as you receive your license in the mail from the FCC
C	Immediately on receiving your Certificate of Successful Completion of Examination (CSCE)
D	As soon as your operator/station license grant appears in the FCC’s license database

7. - T1D02

Under which of the following circumstances are one-way transmissions by an amateur station prohibited?

Select	Answer
A	Broadcasting
B	International Morse Code Practice
C	In all circumstances
D	Telecommand or transmissions of telemetry

8. - T1E02

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

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

9. - T1F07

Which of the following restrictions apply when a non-licensed person is allowed to speak to a foreign station using a station under the control of a licensed amateur operator?

Select	Answer
A	All these choices are correct
B	The foreign station must be in a country with which the U.S. has a third party agreement
C	The licensed control operator must do the station identification
D	The person must be a U.S. citizen

10. - T2A09

Which of the following indicates that a station is listening on a repeater and looking for a contact?

Select	Answer
A	“QSY” followed by your call sign
B	The station’s call sign followed by the word “monitoring”
C	The repeater call sign followed by the station’s call sign
D	“CQ CQ” followed by the repeater’s call sign

11. - T2B11

Which Q signal indicates that you are changing frequency?

Select	Answer
A	QSL
B	QSY
C	QRU
D	QRZ

12. - T2C09

Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

Select	Answer
A	Yes, but only in situations involving the immediate safety of human life or protection of property
B	No
C	Yes, but only when part of a RACES emergency plan
D	Yes, but only when part of a FEMA emergency plan

13. - T3A07

What weather condition might decrease range at microwave frequencies?

Select	Answer
A	Colder temperatures
B	High winds
C	Precipitation
D	Low barometric pressure

14. - T3B11

What is the approximate velocity of a radio wave in free space?

Select	Answer
A	150,000 meters per second
B	150,000 miles per hour
C	300,000,000 miles per hour
D	300,000,000 meters per second

15. - T3C10

Which of the following bands may provide long-distance communications via the ionosphere’s F region during the peak of the sunspot cycle?

Select	Answer
A	23 centimeters
B	70 centimeters and 1.25 meters
C	6 and 10 meters
D	All these choices are correct

16. - T4A09

How can you determine the length of time that equipment can be powered from a battery?

Select	Answer
A	Multiply the watts per hour consumed by the equipment by the battery power rating
B	Divide the battery ampere-hour rating by the average current draw of the equipment
C	Multiply the square of the current rating of the battery by the input resistance of the equipment
D	Divide the watt-hour rating of the battery by the peak power consumption of the equipment

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	Enable squelch enhancement
D	Turn on the anti-squelch function

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Farad
B	Hertz
C	Henry
D	Tesla

19. - T5B04

Which is equal to one microvolt?

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

20. - T5C10

How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

Select	Answer
A	14.5 watts
B	4.8 watts
C	0.208 watts
D	30 watts

21. - T5D09

What is the current through a 24-ohm resistor connected across 240 volts?

Select	Answer
A	0.1 amperes
B	10 amperes
C	216 amperes
D	24,000 amperes

22. - T6A10

Which of the following battery chemistries is rechargeable?

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

23. - T6B05

What type of transistor has a gate, drain, and source?

Select	Answer
A	Varistor
B	Tesla-effect
C	Bipolar junction
D	Field-effect

24. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Battery
B	Connector
C	Transistor
D	Resistor

25. - T6D09

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

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

26. - T7A07

What is the function of a transceiver’s PTT input?

Select	Answer
A	Input for a preamplifier tuning tone
B	Input for a key used to send CW
C	Switches transceiver from receive to transmit when grounded
D	Provides a transmit tuning tone when grounded

27. - T7B11

What is a symptom of RF feedback in a transmitter or transceiver?

Select	Answer
A	Frequent blowing of power supply fuses
B	Excessive SWR at the antenna connection
C	The transmitter will not stay on the desired frequency
D	Reports of garbled, distorted, or unintelligible voice transmissions

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	Because power supplies cannot supply enough current at high SWR
C	To lower the SWR on the transmission line
D	To comply with FCC rules on spectral purity

29. - T7D01

Which instrument would you use to measure electric potential?

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

30. - T8A08

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

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

31. - T8B02

What is the impact of using excessive effective radiated power on a satellite uplink?

Select	Answer
A	Blocking access by other users
B	Possibility of commanding the satellite to an improper mode
C	Overloading the satellite batteries
D	Possibility of rebooting the satellite control computer

32. - T8C07

What is Voice Over Internet Protocol (VoIP)?

Select	Answer
A	A technique employed to “spot” DX stations via the internet
B	A method of delivering voice communications over the internet using digital techniques
C	A set of rules specifying how to identify your station when linked over the internet to another station
D	A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet

33. - T8D02

What is a “talkgroup” on a DMR repeater?

Select	Answer
A	A group of operators sharing common interests
B	A way for groups of users to share a channel at different times without hearing other users on the channel
C	A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
D	A net that meets at a specified time

34. - T9A09

What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

Select	Answer
A	50
B	6
C	112
D	236

35. - T9B06

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

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

Figure T-1