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. - T0B05

What is the purpose of a safety wire through a turnbuckle used to tension guy lines?

Select	Answer
A	Provide a ground path for lightning strikes
B	Secure the guy line if the turnbuckle breaks
C	Provide an ability to measure for proper tensioning
D	Prevent loosening of the turnbuckle from vibration

3. - T0C08

Which of the following actions can reduce exposure to RF radiation?

Select	Answer
A	Increase the duty cycle
B	All these choices are correct
C	Relocate the transmitter
D	Relocate antennas

4. - T1A05

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

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

5. - T1B08

How are US amateurs restricted in segments of bands where the Amateur Radio Service is secondary?

Select	Answer
A	U.S. amateurs must give foreign amateur stations priority in those segments
B	U.S. amateurs may find non-amateur stations in those segments, and must avoid interfering with them
C	Digital transmissions are not permitted in those segments
D	International communications are not permitted in those segments

6. - T1C11

If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

Select	Answer
A	Yes, for up to one year
B	Yes, as soon as you apply for renewal
C	No, you must wait until the license has been renewed
D	Yes, for up to two years

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	The FCC maintains a list of words that are not permitted to be used on amateur frequencies
C	Any such language is prohibited
D	There is no such prohibition

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

Select	Answer
A	The class of operator license held by the control operator
B	The frequency authorized by the frequency coordinator
C	The frequencies printed on the license grant
D	The highest class of operator license held by anyone on the premises

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

10. - T2A06

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

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

11. - T2B07

How can you join a digital repeater’s “talkgroup”?

Select	Answer
A	Sign your call after the courtesy tone
B	Program your radio with the group’s ID or code
C	Join the repeater owner’s club
D	Register your radio with the local FCC office

12. - T2C04

What is RACES?

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

13. - T3A03

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

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

14. - T3B10

What frequency range is referred to as HF?

Select	Answer
A	300 to 3000 kHz
B	300 to 3000 MHz
C	3 to 30 MHz
D	30 to 300 MHz

15. - T3C05

Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

Select	Answer
A	Knife-edge diffraction
B	Doppler shift
C	Quantum tunneling
D	Faraday rotation

16. - T4A06

What signals are used in a computer-radio interface for digital mode operation?

Select	Answer
A	Receive audio, transmit audio, and transmitter keying
B	NMEA GPS location and DC power
C	Receive and transmit mode, status, and location
D	Antenna and RF power

17. - T4B08

What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

Select	Answer
A	Permits monitoring several modes at once by selecting a separate filter for each mode
B	Permits noise or interference reduction by selecting a bandwidth matching the mode
C	Increases the number of frequencies that can be stored in memory
D	Increases the amount of offset between receive and transmit frequencies

18. - T5A07

Why are metals generally good conductors of electricity?

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

19. - T5B06

Which is equal to 3000 milliamperes?

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

20. - T5C12

What is impedance?

Select	Answer
A	The power handling capability of a component
B	The opposition to AC current flow
C	The inverse of resistance
D	The Q or Quality Factor of a component

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 volt
B	2.5 volts
C	0.25 volts
D	1.5 volts

22. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Resistance
B	Inductance
C	Field strength
D	Capacitance

23. - T6B05

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

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

24. - T6C07

What is component 8 in figure T-2?

Select	Answer
A	Regulator IC
B	Light emitting diode
C	Inductor
D	Resistor

25. - T6D07

Which of the following is commonly used as a visual indicator?

Select	Answer
A	Bipolar transistor
B	LED
C	FET
D	Zener diode

26. - T7A07

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

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

27. - T7B04

Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

Select	Answer
A	Ferrite choke
B	Low-pass filter
C	Preamplifier
D	Band-pass filter

28. - T7C01

What is the primary purpose of a dummy load?

Select	Answer
A	To prevent over-modulation of a transmitter
B	To prevent transmitting signals over the air when making tests
C	To improve the efficiency of an antenna
D	To improve the signal-to-noise ratio of a receiver

29. - T7D04

Which instrument is used to measure electric current?

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

30. - T8A11

What is the approximate bandwidth required to transmit a CW signal?

Select	Answer
A	1000 Hz
B	2.4 kHz
C	150 Hz
D	15 kHz

31. - T8B12

Which of the following is a way to determine whether your satellite uplink power is neither too low nor too high?

Select	Answer
A	Listen for distortion on your downlink signal
B	Check your signal strength report in the telemetry data
C	All these choices are correct
D	Your signal strength on the downlink should be about the same as the beacon

32. - T8C10

What is required before using the EchoLink system?

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

33. - T8D13

What is FT8?

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

34. - T9A11

What is antenna gain?

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

35. - T9B04

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

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

Figure T-2