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. - T0A12

Which of the following precautions should be taken when measuring high voltages with a voltmeter?

Select	Answer
A	Ensure that the circuit is grounded through the voltmeter
B	Ensure that the voltmeter and leads are rated for use at the voltages to be measured
C	Ensure that the voltmeter is set to the correct frequency
D	Ensure that the voltmeter has very low impedance

2. - T0B02

What is required when climbing an antenna tower?

Select	Answer
A	Use appropriate tie-off to the tower at all times
B	Have sufficient training on safe tower climbing techniques
C	All these choices are correct
D	Always wear an approved climbing harness

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 is perfectly safe
C	RF radiation is limited in range to a few feet
D	RF radiation can only be detected with an RF dosimeter

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	International Telecommunication Union
C	FCC Regional Field Office
D	Frequency Spectrum Manager appointed by the FCC

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	1500 watts
C	100 watts
D	500 watts

6. - T1C02

Who may select a desired call sign under the vanity call sign rules?

Select	Answer
A	Any licensed amateur
B	Only a licensed amateur with a General or Amateur Extra Class license
C	Only a licensed amateur who has been licensed continuously for more than 10 years
D	Only a licensed amateur with an Amateur Extra Class license

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

8. - T1E08

Which of the following is an example of automatic control?

Select	Answer
A	Repeater operation
B	Controlling a station over the internet
C	Using a computer or other device to identify automatically
D	Using a computer or other device to send CW automatically

9. - T1F03

When are you required to transmit your assigned call sign?

Select	Answer
A	At least every 10 minutes during and at the end of a communication
B	At the beginning of each contact, and every 10 minutes thereafter
C	At least once during each transmission
D	At least every 15 minutes during and at the end of a communication

10. - T2A09

Which of the following indicates that a station is listening on a repeater and looking for a contact?

Select	Answer
A	The repeater call sign followed by the station’s call sign
B	“CQ CQ” followed by the repeater’s call sign
C	The station’s call sign followed by the word “monitoring”
D	“QSY” followed by your call sign

11. - T2B06

What type of signaling uses pairs of audio tones?

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

12. - T2C03

What technique is used to ensure that voice messages containing unusual words are received correctly?

Select	Answer
A	Speak very loudly into the microphone
B	All these choices are correct
C	Spell the words using a standard phonetic alphabet
D	Send the words by voice and Morse code

13. - T3A04

What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

Select	Answer
A	Received signal strength is reduced
B	Signals have an echo effect
C	The modulation sidebands might become inverted
D	Nothing significant will happen

14. - T3B05

What is the relationship between wavelength and frequency?

Select	Answer
A	Wavelength and frequency are unrelated
B	Wavelength and frequency increase as path length increases
C	Wavelength gets longer as frequency increases
D	Wavelength gets shorter as frequency increases

15. - T3C04

Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

Select	Answer
A	D region absorption
B	Backscatter
C	Gray-line propagation
D	Sporadic E

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	Receive and transmit mode, status, and location
C	Antenna and RF power
D	NMEA GPS location and DC power

17. - T4B08

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

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

18. - T5A02

Electrical power is measured in which of the following units?

Select	Answer
A	Watt-hours
B	Watts
C	Amperes
D	Volts

19. - T5B07

Which is equal to 3.525 MHz?

Select	Answer
A	0.003525 kHz
B	3,525,000 kHz
C	3525 kHz
D	35.25 kHz

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	138 watts
D	0.7 watts

21. - T5D07

What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

Select	Answer
A	9600 amperes
B	200 amperes
C	1.5 amperes
D	0.667 amperes

22. - T6A12

What type of switch is represented by component 3 in figure T-2?

Select	Answer
A	Double-pole single-throw
B	Single-pole single-throw
C	Single-pole double-throw
D	Double-pole double-throw

23. - T6B04

Which of the following components can consist of three regions of semiconductor material?

Select	Answer
A	Alternator
B	Pentagrid converter
C	Triode
D	Transistor

24. - T6C09

What is component 4 in figure T-2?

Select	Answer
A	Double-pole switch
B	Variable inductor
C	Transformer
D	Potentiometer

25. - T6D09

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

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

26. - T7A03

Which of the following is used to convert a signal from one frequency to another?

Select	Answer
A	Inverter
B	Phase splitter
C	Amplifier
D	Mixer

27. - T7B03

Which of the following can cause radio frequency interference?

Select	Answer
A	Harmonics
B	All these choices are correct
C	Spurious emissions
D	Fundamental overload

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. - T7D09

What is the characteristic appearance of a cold tin-lead solder joint?

Select	Answer
A	Excessive solder
B	A bright or shiny surface
C	Dark black spots
D	A rough or lumpy surface

30. - T8A01

Which of the following is a form of amplitude modulation?

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

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

32. - T8C03

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

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

33. - T8D01

Which of the following is a digital communications mode?

Select	Answer
A	IEEE 802.11
B	All these choices are correct
C	Packet radio
D	FT8

34. - T9A05

Which of the following increases the resonant frequency of a dipole antenna?

Select	Answer
A	Adding capacitive loading to the ends of the radiating wires
B	Lengthening it
C	Inserting coils in series with radiating wires
D	Shortening it

35. - T9B10

What is the electrical difference between RG-58 and RG-213 coaxial cable?

Select	Answer
A	RG-58 cable has two shields
B	There is no significant difference between the two types
C	RG-213 cable has less loss at a given frequency
D	RG-58 cable can handle higher power levels

Figure T-2