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. - T0A05

Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

Select	Answer
A	Excessive current could cause a fire
B	The larger fuse would be likely to blow because it is rated for higher current
C	All these choices are correct
D	The power supply ripple would greatly increase

2. - T0B10

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

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

3. - T0C12

How does RF radiation differ from ionizing radiation (radioactivity)?

Select	Answer
A	RF radiation is perfectly safe
B	RF radiation can only be detected with an RF dosimeter
C	RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA
D	RF radiation is limited in range to a few feet

4. - T1A08

Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

Select	Answer
A	Volunteer Frequency Coordinator recognized by local amateurs
B	FCC Regional Field Office
C	Frequency Spectrum Manager appointed by the FCC
D	International Telecommunication Union

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	50 watts
B	100 watts
C	1500 watts
D	500 watts

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. - 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 banned from making such communications by the American Radio Relay League (ARRL)
D	Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications

8. - T1E10

Which of the following is an example of remote control as defined in Part 97?

Select	Answer
A	Operating the station over the internet
B	Controlling a model aircraft, boat, or car by amateur radio
C	Repeater operation
D	All these choices are correct

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. - T2A07

What is meant by "repeater offset”?

Select	Answer
A	The number of simultaneous transmit frequencies used by a repeater
B	The repeater has a time delay to prevent interference
C	The repeater station identification is done on a separate frequency
D	The difference between a repeater’s transmit and receive frequencies

11. - T2B12

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

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

12. - T2C10

What information is contained in the preamble of a formal traffic message?

Select	Answer
A	The address of the intended recipient
B	The email address of the originating station
C	The telephone number of the addressee
D	Information needed to track the message

13. - T3A02

What is the effect of vegetation on UHF and microwave signals?

Select	Answer
A	Knife-edge diffraction
B	Amplification
C	Absorption
D	Polarization rotation

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C02

What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

Select	Answer
A	HF antennas are generally smaller
B	There is less atmospheric interference (static) on HF
C	Long-distance ionospheric propagation is far more common on HF
D	HF accommodates wider bandwidth signals

16. - T4A06

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

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

17. - T4B07

What does a DMR “code plug” contain?

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

18. - T5A10

Which term describes the rate at which electrical energy is used?

Select	Answer
A	Current
B	Power
C	Voltage
D	Resistance

19. - T5B05

Which is equal to 500 milliwatts?

Select	Answer
A	50 watts
B	5 watts
C	0.5 watts
D	0.02 watts

20. - T5C13

What is the abbreviation for kilohertz?

Select	Answer
A	khz
B	kHz
C	KHZ
D	khZ

21. - T5D03

What formula is used to calculate resistance in a circuit?

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

22. - T6A05

What type of electrical component consists of conductive surfaces separated by an insulator?

Select	Answer
A	Capacitor
B	Potentiometer
C	Oscillator
D	Resistor

23. - T6B02

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

Select	Answer
A	Fuse
B	Resistor
C	Diode
D	Driven element

24. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Transistor
B	Resistor
C	Battery
D	Connector

25. - T6D01

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Select	Answer
A	Transformer
B	Rectifier
C	Amplifier
D	Reflector

26. - T7A04

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

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

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	Low-pass filter
B	Ferrite choke
C	Band-pass filter
D	Preamplifier

28. - T7C03

What does a dummy load consist of?

Select	Answer
A	A high-gain amplifier and a TR switch
B	A low-voltage power supply and a DC relay
C	A non-inductive resistor mounted on a heat sink
D	A 50-ohm reactance used to terminate a transmission line

29. - T7D01

Which instrument would you use to measure electric potential?

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

30. - T8A08

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

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

31. - T8B10

What is a LEO satellite?

Select	Answer
A	A sun synchronous satellite
B	A satellite in low energy operation mode
C	A highly elliptical orbit satellite
D	A satellite in low earth orbit

32. - T8C03

What operating activity involves contacting as many stations as possible during a specified period?

Select	Answer
A	Public service events
B	Net operations
C	Contesting
D	Simulated emergency exercises

33. - T8D04

What type of transmission is indicated by the term "NTSC?"

Select	Answer
A	A special mode for satellite uplink
B	A frame compression scheme for TV signals
C	A Normal Transmission mode in Static Circuit
D	An analog fast-scan color TV signal

34. - T9A03

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

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

35. - T9B12

What is standing wave ratio (SWR)?

Select	Answer
A	The ratio of amplifier power output to input
B	The transmitter efficiency ratio
C	A measure of how well a load is matched to a transmission line
D	An indication of the quality of your station’s ground connection

Figure T-1