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. - T0A07

Where should a lightning arrester be installed in a coaxial feed line?

Select	Answer
A	At the antenna feed point
B	At the output connector of a transceiver
C	On a grounded panel near where feed lines enter the building
D	At the ac power service panel

2. - T0B01

Which of the following is good practice when installing ground wires on a tower for lightning protection?

Select	Answer
A	Ensure that connections are short and direct
B	Put a drip loop in the ground connection to prevent water damage to the ground system
C	All these choices are correct
D	Make sure all ground wire bends are right angles

3. - T0C05

Why do exposure limits vary with frequency?

Select	Answer
A	Lower frequency RF fields have more energy than higher frequency fields
B	The human body absorbs more RF energy at some frequencies than at others
C	Higher frequency RF fields are transient in nature
D	Lower frequency RF fields do not penetrate the human body

4. - T1A01

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

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

5. - T1B11

What is the maximum peak envelope power output for Technician class operators in their HF band segments?

Select	Answer
A	50 watts
B	200 watts
C	100 watts
D	10 watts

6. - T1C06

From which of the following locations may an FCC-licensed amateur station transmit?

Select	Answer
A	From any vessel or craft located in international waters and documented or registered in the United States
B	From within any country that is a member of the United Nations
C	From within any country that belongs to the International Telecommunication Union
D	From anywhere within International Telecommunication Union (ITU) Regions 2 and 3

7. - T1D09

When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

Select	Answer
A	Never
B	When such communications are directly related to the immediate safety of human life or protection of property
C	When broadcasting communications to or from the space shuttle
D	Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network

8. - T1E11

Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

Select	Answer
A	The person operating the station equipment
B	The station licensee
C	The third party participant
D	The station custodian

9. - T1F01

When must the station and its records be available for FCC inspection?

Select	Answer
A	At any time upon request by an FCC representative
B	At any time ten days after notification by the FCC of such an inspection
C	At any time after written notification by the FCC of such inspection
D	Only when presented with a valid warrant by an FCC official or government agent

10. - T2A07

What is meant by "repeater offset”?

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

11. - T2B05

What would cause your FM transmission audio to be distorted on voice peaks?

Select	Answer
A	You need to talk louder
B	Your transmit power is too high
C	Your repeater offset is inverted
D	You are talking too loudly

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. - 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. - T3B09

What frequency range is referred to as UHF?

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

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

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	Antenna and RF power
C	NMEA GPS location and DC power
D	Receive audio, transmit audio, and transmitter keying

17. - T4B07

What does a DMR “code plug” contain?

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

18. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Mercury
B	Glass
C	Copper
D	Aluminum

19. - T5B12

Which is equal to 28400 kHz?

Select	Answer
A	284.00 MHz
B	28.400 kHz
C	2.800 MHz
D	28.400 MHz

20. - T5C09

How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

Select	Answer
A	23.8 watts
B	3.8 watts
C	0.7 watts
D	138 watts

21. - T5D09

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

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

22. - T6A01

What electrical component opposes the flow of current in a DC circuit?

Select	Answer
A	Transformer
B	Inductor
C	Resistor
D	Inverter

23. - T6B02

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

Select	Answer
A	Diode
B	Fuse
C	Resistor
D	Driven element

24. - T6C04

What is component 3 in figure T-1?

Select	Answer
A	Resistor
B	Lamp
C	Ground symbol
D	Transistor

25. - T6D09

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

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

26. - T7A11

Where is an RF preamplifier installed?

Select	Answer
A	At the output of the receiver audio amplifier
B	Between the antenna and receiver
C	Between the transmitter and the antenna tuner
D	At the output of the transmitter power amplifier

27. - T7B02

What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

Select	Answer
A	The deviation of an FM transmitter is set too low
B	The receiver is unable to reject strong signals outside the AM or FM band
C	The audio amplifier of the transmitter is overloaded
D	The microphone gain of the transmitter is turned up too high

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	A wavemeter
C	An ammeter
D	A voltmeter

30. - T8A01

Which of the following is a form of amplitude modulation?

Select	Answer
A	Phase shift keying (PSK)
B	Packet radio
C	Spread spectrum
D	Single sideband

31. - T8B09

What causes spin fading of satellite signals?

Select	Answer
A	Rotation of the satellite and its antennas
B	Doppler shift of the received signal
C	Interfering signals within the satellite uplink band
D	Circular polarized noise interference radiated from the sun

32. - T8C06

How is over the air access to IRLP nodes accomplished?

Select	Answer
A	By using CTCSS tone codes
B	By using DTMF signals
C	By obtaining a password that is sent via voice to the node
D	By entering the proper internet password

33. - T8D10

Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

Select	Answer
A	Earth-Moon-Earth
B	Meteor scatter
C	All these choices are correct
D	Weak signal propagation beacons

34. - T9A01

What is a beam antenna?

Select	Answer
A	An antenna that reverses the phase of received signals
B	An antenna built from aluminum I-beams
C	An antenna that concentrates signals in one direction
D	An omnidirectional antenna invented by Clarence Beam

35. - T9B01

What is a benefit of low SWR?

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

Figure T-1