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. - T0A01

Which of the following is a safety hazard of a 12-volt storage battery?

Select	Answer
A	Shorting the terminals can cause burns, fire, or an explosion
B	Touching both terminals with the hands can cause electrical shock
C	All these choices are correct
D	RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas

2. - T0B06

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

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

3. - T0C13

Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

Select	Answer
A	The local zoning board
B	The FCC
C	The station licensee
D	Anyone who is near an antenna

4. - T1A07

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

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

5. - T1B07

Which of the following VHF/UHF band segments are limited to CW only?

Select	Answer
A	50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz
B	219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
C	902.0 MHz to 902.1 MHz
D	All these choices are correct

6. - T1C11

If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

Select	Answer
A	No, you must wait until the license has been renewed
B	Yes, as soon as you apply for renewal
C	Yes, for up to one year
D	Yes, for up to two years

7. - T1D07

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

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

8. - T1E01

When may an amateur station transmit without a control operator?

Select	Answer
A	Never
B	When the station licensee is away and another licensed amateur is using the station
C	When using automatic control, such as in the case of a repeater
D	When the transmitting station is an auxiliary station

9. - T1F02

How often must you identify with your FCC-assigned call sign when using tactical call signs such as “Race Headquarters”?

Select	Answer
A	Never, the tactical call is sufficient
B	At the end of each communication and every ten minutes during a communication
C	At the end of every transmission
D	Once during every hour

10. - T2A09

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

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

11. - T2B06

What type of signaling uses pairs of audio tones?

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

12. - T2C05

What does the term “traffic” refer to in net operation?

Select	Answer
A	Operation by mobile or portable stations
B	Requests to activate the net by a served agency
C	Messages exchanged by net stations
D	The number of stations checking in and out of a net

13. - T3A10

What effect does multi-path propagation have on data transmissions?

Select	Answer
A	No significant changes will occur if the signals are transmitted using FM
B	Error rates are likely to increase
C	Transmission rates must be increased by a factor equal to the number of separate paths observed
D	Transmission rates must be decreased by a factor equal to the number of separate paths observed

14. - T3B09

What frequency range is referred to as UHF?

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

15. - T3C07

What band is best suited for communicating via meteor scatter?

Select	Answer
A	6 meters
B	33 centimeters
C	2 meters
D	70 centimeters

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

17. - T4B11

Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

Select	Answer
A	All these choices are correct
B	Your call sign
C	The codec type being used
D	Your output power

18. - T5A05

What is the electrical term for the force that causes electron flow?

Select	Answer
A	Capacitance
B	Voltage
C	Inductance
D	Ampere-hours

19. - T5B09

Which decibel value most closely represents a power increase from 5 watts to 10 watts?

Select	Answer
A	10 dB
B	3 dB
C	2 dB
D	5 dB

20. - T5C08

What is the formula used to calculate electrical power (P) in a DC circuit?

Select	Answer
A	P = I  E
B	P = I + E
C	P = E / I
D	P = E – I

21. - T5D09

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

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

22. - T6A12

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

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

23. - T6B06

How is the cathode lead of a semiconductor diode often marked on the package?

Select	Answer
A	With the letter K
B	With a stripe
C	With the letter C
D	With the word "cathode"

24. - T6C04

What is component 3 in figure T-1?

Select	Answer
A	Lamp
B	Transistor
C	Ground symbol
D	Resistor

25. - T6D07

Which of the following is commonly used as a visual indicator?

Select	Answer
A	Bipolar transistor
B	LED
C	FET
D	Zener diode

26. - T7A06

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

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

27. - T7B03

Which of the following can cause radio frequency interference?

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

28. - T7C10

Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

Select	Answer
A	Ultraviolet light can damage the jacket and allow water to enter the cable
B	Ultraviolet light can increase losses in the cable’s jacket
C	Ultraviolet and RF signals can mix, causing interference
D	Ultraviolet resistant jackets prevent harmonic radiation

29. - T7D09

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

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

30. - T8A06

Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

Select	Answer
A	Inverted sideband
B	Suppressed sideband
C	Lower sideband
D	Upper sideband

31. - T8B04

What mode of transmission is commonly used by amateur radio satellites?

Select	Answer
A	FM
B	All these choices are correct
C	CW/data
D	SSB

32. - T8C01

Which of the following methods is used to locate sources of noise interference or jamming?

Select	Answer
A	Radio direction finding
B	Echolocation
C	Phase locking
D	Doppler radar

33. - T8D05

Which of the following is an application of APRS?

Select	Answer
A	Providing voice over internet connection between repeaters
B	Showing automatically the number of packets transmitted via PACTOR during a specific time interval
C	Providing real-time tactical digital communications in conjunction with a map showing the locations of stations
D	Providing information on the number of stations signed into a repeater

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 transmits only circularly polarized signals
B	All these choices are correct
C	It has low efficiency
D	It is mechanically fragile

35. - T9B01

What is a benefit of low SWR?

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

Figure T-2

Figure T-1