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. - T0A04

What is the purpose of a fuse in an electrical circuit?

Select	Answer
A	To limit current to prevent shocks
B	To remove power in case of overload
C	To prevent power supply ripple from damaging a component
D	All these choices are correct

2. - T0B06

What is the minimum safe distance from a power line to allow when installing an antenna?

Select	Answer
A	Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
B	Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
C	1/2 wavelength at the operating frequency
D	The height of the power line above ground

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. - T1A07

What is the FCC Part 97 definition of a space station?

Select	Answer
A	A manned satellite orbiting Earth
B	An amateur station located more than 50 km above Earth's surface
C	Any satellite orbiting Earth
D	An amateur station using amateur radio satellites for relay of signals

5. - T1B01

Which of the following frequency ranges are available for phone operation by Technician licensees?

Select	Answer
A	28.050 MHz to 28.150 MHz
B	28.500 MHz to 28.600 MHz
C	28.300 MHz to 28.500 MHz
D	28.100 MHz to 28.300 MHz

6. - T1C05

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

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

7. - T1D07

What types of amateur stations can automatically retransmit the signals of other amateur stations?

Select	Answer
A	Earth, repeater, or space stations
B	Repeater, auxiliary, or space stations
C	Auxiliary, beacon, or Earth stations
D	Beacon, repeater, or space stations

8. - T1E07

When the control operator is not the station licensee, who is responsible for the proper operation of the station?

Select	Answer
A	The control operator and the station licensee
B	Only the station licensee
C	Only the control operator
D	All licensed amateurs who are present at the operation

9. - T1F06

Which of the following self-assigned indicators are acceptable when using a phone transmission?

Select	Answer
A	KL7CC slant W3
B	All these choices are correct
C	KL7CC slash W3
D	KL7CC stroke W3

10. - T2A05

How should you respond to a station calling CQ?

Select	Answer
A	Transmit a signal report followed by your call sign
B	Transmit "CQ" followed by the other station’s call sign
C	Transmit the other station’s call sign followed by your call sign
D	Transmit your call sign followed by the other station’s call sign

11. - T2B06

What type of signaling uses pairs of audio tones?

Select	Answer
A	D-STAR
B	CTCSS
C	DTMF
D	GPRS

12. - T2C06

What is the Amateur Radio Emergency Service (ARES)?

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

13. - T3A08

What is a likely cause of irregular fading of signals propagated by the ionosphere?

Select	Answer
A	Random combining of signals arriving via different paths
B	Frequency shift due to Faraday rotation
C	Intermodulation distortion
D	Interference from thunderstorms

14. - T3B04

What is the velocity of a radio wave traveling through free space?

Select	Answer
A	Speed inversely proportional to its wavelength
B	Speed of light
C	Speed that increases as the frequency increases
D	Speed of sound

15. - T3C09

What is generally the best time for long-distance 10 meter band propagation via the F region?

Select	Answer
A	From dawn to shortly after sunset during periods of low sunspot activity
B	From dawn to shortly after sunset during periods of high sunspot activity
C	From shortly after sunset to dawn during periods of low sunspot activity
D	From shortly after sunset to dawn during periods of high sunspot activity

16. - T4A11

Where should the negative power return of a mobile transceiver be connected in a vehicle?

Select	Answer
A	At the antenna mount
B	Through the transceiver’s mounting bracket
C	At the 12 volt battery chassis ground
D	To any metal part of the vehicle

17. - T4B10

Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

Select	Answer
A	1000 Hz
B	500 Hz
C	2400 Hz
D	5000 Hz

18. - T5A09

Which of the following describes alternating current?

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

19. - T5B13

Which is equal to 2425 MHz?

Select	Answer
A	24.25 GHz
B	2.425 GHz
C	2425 GHz
D	0.002425 GHz

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	MHz
B	mh
C	Mhz
D	MH

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. - T6A06

What type of electrical component stores energy in a magnetic field?

Select	Answer
A	Capacitor
B	Inductor
C	Varistor
D	Diode

23. - T6B01

Which is true about forward voltage drop in a diode?

Select	Answer
A	It is lower in some diode types than in others
B	It is proportional to peak inverse voltage
C	It indicates that the diode is defective
D	It has no impact on the voltage delivered to the load

24. - T6C12

Which of the following is accurately represented in electrical schematics?

Select	Answer
A	All these choices are correct
B	Component connections
C	Physical appearance of components
D	Wire lengths

25. - T6D03

Which of the following is a reason to use shielded wire?

Select	Answer
A	To decrease the resistance of DC power connections
B	To increase the current carrying capability of the wire
C	To prevent coupling of unwanted signals to or from the wire
D	To couple the wire to other signals

26. - T7A06

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

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

27. - T7B02

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

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

28. - T7C06

What does an SWR reading of 4:1 indicate?

Select	Answer
A	Gain of +4 dB
B	Good impedance match
C	Impedance mismatch
D	Loss of -4 dB

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. - T8A10

What is the approximate bandwidth of AM fast-scan TV transmissions?

Select	Answer
A	More than 10 MHz
B	About 6 MHz
C	About 1 MHz
D	About 3 MHz

31. - T8B03

Which of the following are provided by satellite tracking programs?

Select	Answer
A	The apparent frequency of the satellite transmission, including effects of Doppler shift
B	The time, azimuth, and elevation of the start, maximum altitude, and end of a pass
C	Maps showing the real-time position of the satellite track over Earth
D	All these choices are correct

32. - T8C09

Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

Select	Answer
A	IRLP
B	D-STAR
C	DMR
D	EchoLink

33. - T8D04

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

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

34. - T9A01

What is a beam antenna?

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

35. - T9B02

What is the most common impedance of coaxial cables used in amateur radio?

Select	Answer
A	600 ohms
B	8 ohms
C	50 ohms
D	12 ohms