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. - T0A06

What is a good way to guard against electrical shock at your station?

Select	Answer
A	Install mechanical interlocks in high-voltage circuits
B	Use three-wire cords and plugs for all AC powered equipment
C	All these choices are correct
D	Connect all AC powered station equipment to a common safety ground

2. - T0B11

Which of the following establishes grounding requirements for an amateur radio tower or antenna?

Select	Answer
A	FAA tower lighting regulations
B	FCC Part 97 rules
C	Local electrical codes
D	UL recommended practices

3. - T0C12

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

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

4. - T1A01

Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

Select	Answer
A	Providing personal radio communications for as many citizens as possible
B	Advancing skills in the technical and communication phases of the radio art
C	All these choices are correct
D	Providing communications for international non-profit organizations

5. - T1B02

Which amateurs may contact the International Space Station (ISS) on VHF bands?

Select	Answer
A	Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
B	Any amateur holding a General class or higher license who has applied for and received approval from NASA
C	Any amateur holding a General class or higher license
D	Any amateur holding a Technician class or higher license

6. - T1C05

Which of the following is a valid Technician class call sign format?

Select	Answer
A	All these choices are correct
B	KA1X
C	W1XX
D	KF1XXX

7. - T1D02

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

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

8. - T1E10

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

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

9. - T1F04

What language may you use for identification when operating in a phone sub-band?

Select	Answer
A	Any language recognized by the United Nations
B	Any language recognized by the ITU
C	English, French, or Spanish
D	English

10. - T2A07

What is meant by "repeater offset”?

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

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. - T2C06

What is the Amateur Radio Emergency Service (ARES)?

Select	Answer
A	A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
B	A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
C	A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
D	A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies

13. - T3A01

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

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

14. - T3B07

In addition to frequency, which of the following is used to identify amateur radio bands?

Select	Answer
A	Channel numbers
B	Traditional letter/number designators
C	All these choices are correct
D	The approximate wavelength in meters

15. - T3C01

Why are simplex UHF signals rarely heard beyond their radio horizon?

Select	Answer
A	FCC regulations prohibit them from going more than 50 miles
B	UHF signals are absorbed by the ionospheric D region
C	UHF signals are usually not propagated by the ionosphere
D	They are too weak to go very far

16. - T4A07

Which of the following connections is made between a computer and a transceiver to use computer software when operating digital modes?

Select	Answer
A	Computer “line in” to transceiver speaker connector
B	Computer “line out” to transceiver push-to-talk
C	Computer “line in” to transceiver push-to-talk
D	Computer “line out” to transceiver speaker connector

17. - T4B03

How is squelch adjusted so that a weak FM signal can be heard?

Select	Answer
A	Turn on the anti-squelch function
B	Set the squelch threshold so that receiver output audio is on all the time
C	Turn up the audio level until it overcomes the squelch threshold
D	Enable squelch enhancement

18. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Ohms
B	Volts
C	Amperes
D	Watts

19. - T5B08

Which is equal to 1,000,000 picofarads?

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

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	MH
B	mh
C	Mhz
D	MHz

21. - T5D08

What is the current through a 100-ohm resistor connected across 200 volts?

Select	Answer
A	0.5 amperes
B	100 amperes
C	2 amperes
D	20,000 amperes

22. - T6A11

Which of the following battery chemistries is not rechargeable?

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

23. - T6B08

What does the abbreviation FET stand for?

Select	Answer
A	Frequency Emission Transmitter
B	Field Effect Transistor
C	Free Electron Transmitter
D	Fast Electron Transistor

24. - T6C08

What is component 9 in figure T-2?

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

25. - T6D01

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

Select	Answer
A	Amplifier
B	Transformer
C	Reflector
D	Rectifier

26. - T7A06

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

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

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 low-pass filter to the TV antenna input
C	Add a high-pass filter to the TV antenna input
D	Add a preamplifier to the TV antenna input

28. - T7C05

Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

Select	Answer
A	To lower the SWR on the transmission line
B	To protect the output amplifier transistors
C	Because power supplies cannot supply enough current at high SWR
D	To comply with FCC rules on spectral purity

29. - T7D06

Which of the following can damage a multimeter?

Select	Answer
A	Attempting to measure resistance using the voltage setting
B	Failing to connect one of the probes to ground
C	Attempting to measure voltage when using the resistance setting
D	Not allowing it to warm up properly

30. - T8A12

Which of the following is a disadvantage of FM compared with single sideband?

Select	Answer
A	FM signals are harder to tune
B	Voice quality is poorer
C	All these choices are correct
D	Only one signal can be received at a time

31. - T8B11

Who may receive telemetry from a space station?

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

32. - T8C10

What is required before using the EchoLink system?

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

33. - T8D12

Which of the following best describes an amateur radio mesh network?

Select	Answer
A	A wide-bandwidth digital voice mode employing DMR protocols
B	An amateur-radio based data network using commercial Wi-Fi equipment with modified firmware
C	A satellite communications network using modified commercial satellite TV hardware
D	An internet linking protocol used to network repeaters

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. - T9B01

What is a benefit of low SWR?

Select	Answer
A	Reduced signal loss
B	All these choices are correct
C	Reduced television interference
D	Less antenna wear

Figure T-2