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

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	Ensure that connections are short and direct
C	Make sure all ground wire bends are right angles
D	Put a drip loop in the ground connection to prevent water damage to the ground system

3. - T0C07

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

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

4. - T1A05

What proves that the FCC has issued an operator/primary license grant?

Select	Answer
A	The license appears in the FCC ULS database
B	An email notification from the NCVEC granting the license
C	A printed copy of the certificate of successful completion of examination
D	All these choices are correct

5. - T1B12

Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

Select	Answer
A	1500 watts
B	50 watts
C	500 watts
D	100 watts

6. - T1C01

For which license classes are new licenses currently available from the FCC?

Select	Answer
A	Technician, Technician Plus, General, Amateur Extra
B	Novice, Technician Plus, General, Advanced
C	Novice, Technician, General, Amateur Extra
D	Technician, General, Amateur Extra

7. - T1D01

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

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

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	Operating the station over the internet
C	Repeater operation
D	Controlling a model aircraft, boat, or car by amateur radio

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 person must be a U.S. citizen
C	The foreign station must be in a country with which the U.S. has a third party agreement
D	The licensed control operator must do the station identification

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	Ask if the frequency is in use
D	Listen first to be sure that no one else is using the frequency

11. - T2B08

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

Select	Answer
A	Interference is inevitable, so no action is required
B	Use subaudible tones so both stations can share the frequency
C	The stations should negotiate continued use of the frequency
D	Both stations should choose another frequency to avoid conflict

12. - T2C04

What is RACES?

Select	Answer
A	An FCC part 97 amateur radio service for civil defense communications during national emergencies
B	An emergency organization combining amateur radio and citizens band operators and frequencies
C	A radio contest held in a short period, sometimes called a “sprint”
D	An international radio experimentation society

13. - T3A03

What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

Select	Answer
A	Left-hand circular
B	Right-hand circular
C	Vertical
D	Horizontal

14. - T3B11

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

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

15. - T3C11

Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

Select	Answer
A	Radio waves are blocked by dust particles
B	Radio waves are not blocked by dust particles
C	Radio signals move somewhat faster than the speed of light
D	The atmosphere refracts radio waves slightly

16. - T4A01

Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

Select	Answer
A	24.0 volts at 4 amperes
B	24.0 volts at 12 amperes
C	13.8 volts at 4 amperes
D	13.8 volts at 12 amperes

17. - T4B07

What does a DMR “code plug” contain?

Select	Answer
A	Access information for repeaters and talkgroups
B	Your call sign in CW for automatic identification
C	The codec for digitizing audio
D	The DMR software version

18. - T5A09

Which of the following describes alternating current?

Select	Answer
A	Current that alternates between a positive direction and zero
B	Current that alternates between positive and negative directions
C	Current that alternates between a negative direction and zero
D	All these answers are correct

19. - T5B06

Which is equal to 3000 milliamperes?

Select	Answer
A	3,000,000 amperes
B	0.003 amperes
C	0.3 amperes
D	3 amperes

20. - T5C11

How much current is required to deliver 120 watts at a voltage of 12 volts DC?

Select	Answer
A	10 amperes
B	132 amperes
C	0.1 amperes
D	12 amperes

21. - T5D03

What formula is used to calculate resistance in a circuit?

Select	Answer
A	R = E - I
B	R = E / I
C	R = E x I
D	R = E + I

22. - T6A11

Which of the following battery chemistries is not rechargeable?

Select	Answer
A	Nickel-cadmium
B	Lithium-ion
C	Carbon-zinc
D	Lead-acid

23. - T6B03

Which of these components can be used as an electronic switch?

Select	Answer
A	Thermistor
B	Varistor
C	Transistor
D	Potentiometer

24. - T6C08

What is component 9 in figure T-2?

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

25. - T6D05

What type of circuit controls the amount of voltage from a power supply?

Select	Answer
A	Phase inverter
B	Oscillator
C	Regulator
D	Filter

26. - T7A06

What device converts the RF input and output of a transceiver to another band?

Select	Answer
A	Transverter
B	High-pass filter
C	Phase converter
D	Low-pass filter

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

28. - T7C11

What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

Select	Answer
A	It has more loss per foot
B	It cannot be used for VHF or UHF antennas
C	It requires special techniques to prevent moisture in the cable
D	It cannot be used at below freezing temperatures

29. - T7D01

Which instrument would you use to measure electric potential?

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

30. - T8A03

Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?

Select	Answer
A	SSB
B	DRM
C	PM
D	FM

31. - T8B11

Who may receive telemetry from a space station?

Select	Answer
A	A licensed radio amateur who has registered for an access code from AMSAT
B	A licensed radio amateur who has been certified by the protocol developer
C	Anyone
D	A licensed radio amateur with a transmitter equipped for interrogating the satellite

32. - T8C04

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

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

33. - T8D02

What is a “talkgroup” on a DMR repeater?

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

34. - T9A03

Which of the following describes a simple dipole oriented parallel to Earth's surface?

Select	Answer
A	A ground-wave antenna
B	A travelling-wave antenna
C	A vertically polarized antenna
D	A horizontally polarized antenna

35. - T9B04

What is the major function of an antenna tuner (antenna coupler)?

Select	Answer
A	It helps a receiver automatically tune in weak stations
B	It allows an antenna to be used on both transmit and receive
C	It automatically selects the proper antenna for the frequency band being used
D	It matches the antenna system impedance to the transceiver's output impedance

Figure T-2