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. - T0A11

What hazard exists in a power supply immediately after turning it off?

Select	Answer
A	Charge stored in filter capacitors
B	Circulating currents in the dc filter
C	Leakage flux in the power transformer
D	Voltage transients from kickback diodes

2. - T0B08

Which is a proper grounding method for a tower?

Select	Answer
A	Separate eight-foot ground rods for each tower leg, bonded to the tower and each other
B	A connection between the tower base and a cold water pipe
C	A single four-foot ground rod, driven into the ground no more than 12 inches from the base
D	A ferrite-core RF choke connected between the tower and ground

3. - T0C02

At which of the following frequencies does maximum permissible exposure have the lowest value?

Select	Answer
A	1296 MHz
B	3.5 MHz
C	50 MHz
D	440 MHz

4. - T1A11

When is willful interference to other amateur radio stations permitted?

Select	Answer
A	At any time, stations in the Amateur Radio Service are not protected from willful interference
B	To stop another amateur station that is breaking the FCC rules
C	When making short test transmissions
D	At no time

5. - T1B08

How are US amateurs restricted in segments of bands where the Amateur Radio Service is secondary?

Select	Answer
A	U.S. amateurs may find non-amateur stations in those segments, and must avoid interfering with them
B	International communications are not permitted in those segments
C	Digital transmissions are not permitted in those segments
D	U.S. amateurs must give foreign amateur stations priority in those segments

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 belongs to the International Telecommunication Union
C	From within any country that is a member of the United Nations
D	From anywhere within International Telecommunication Union (ITU) Regions 2 and 3

7. - T1D10

How does the FCC define broadcasting for the Amateur Radio Service?

Select	Answer
A	Transmissions intended for reception by the general public
B	Transmission of messages directed only to amateur operators
C	Two-way transmissions by amateur stations
D	Any transmission made by the licensed station

8. - T1E03

Who must designate the station control operator?

Select	Answer
A	Any licensed operator
B	The frequency coordinator
C	The station licensee
D	The FCC

9. - T1F10

Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?

Select	Answer
A	The control operator of the repeater
B	Both the originating station and the repeater owner
C	The control operator of the originating station
D	The owner of the repeater

10. - T2A10

What is a band plan, beyond the privileges established by the FCC?

Select	Answer
A	A voluntary guideline for using different modes or activities within an amateur band
B	A list of operating schedules
C	A plan devised by a club to indicate frequency band usage
D	A list of available net frequencies

11. - T2B09

Why are simplex channels designated in the VHF/UHF band plans?

Select	Answer
A	So stations within range of each other can communicate without tying up a repeater
B	So stations with simple transmitters can access the repeater without automated offset
C	For working DX only
D	For contest operation

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	Send the words by voice and Morse code
C	All these choices are correct
D	Spell the words using a standard phonetic alphabet

13. - T3A06

What is the meaning of the term “picket fencing”?

Select	Answer
A	Local vs long-distance communications
B	Rapid flutter on mobile signals due to multipath propagation
C	A type of ground system used with vertical antennas
D	Alternating transmissions during a net operation

14. - T3B06

What is the formula for converting frequency to approximate wavelength in meters?

Select	Answer
A	Wavelength in meters equals 300 divided by frequency in megahertz
B	Wavelength in meters equals frequency in megahertz divided by 300
C	Wavelength in meters equals frequency in hertz multiplied by 300
D	Wavelength in meters equals frequency in hertz divided by 300

15. - T3C03

What is a characteristic of VHF signals received via auroral backscatter?

Select	Answer
A	They are often received from 10,000 miles or more
B	They are distorted and signal strength varies considerably
C	They occur only during winter nighttime hours
D	They are generally strongest when your antenna is aimed west

16. - T4A01

Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

Select	Answer
A	24.0 volts at 4 amperes
B	24.0 volts at 12 amperes
C	13.8 volts at 4 amperes
D	13.8 volts at 12 amperes

17. - T4B11

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

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

18. - T5A05

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

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

19. - T5B13

Which is equal to 2425 MHz?

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

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	MH
B	mh
C	MHz
D	Mhz

21. - T5D09

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

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

22. - T6A11

Which of the following battery chemistries is not rechargeable?

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

23. - T6B11

What is the term that describes a device's ability to amplify a signal?

Select	Answer
A	Forward voltage drop
B	Gain
C	On resistance
D	Forward resistance

24. - T6C06

What is component 6 in figure T-2?

Select	Answer
A	Regulator IC
B	Resistor
C	Capacitor
D	Transistor

25. - T6D06

What component changes 120 V AC power to a lower AC voltage for other uses?

Select	Answer
A	Transistor
B	Transformer
C	Diode
D	Variable capacitor

26. - T7A08

Which of the following describes combining speech with an RF carrier signal?

Select	Answer
A	Low-pass filtering
B	Impedance matching
C	Modulation
D	Oscillation

27. - T7B01

What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

Select	Answer
A	Talk farther away from the microphone
B	Let the transceiver cool off
C	Change to a higher power level
D	Talk louder into the microphone

28. - T7C06

What does an SWR reading of 4:1 indicate?

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

29. - T7D10

What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

Select	Answer
A	Increasing resistance with time
B	Decreasing resistance with time
C	Steady full-scale reading
D	Alternating between open and short circuit

30. - T8A07

What is a characteristic of single sideband (SSB) compared to FM?

Select	Answer
A	SSB signals are easier to tune in correctly
B	All these choices are correct
C	SSB signals are less susceptible to interference
D	SSB signals have narrower bandwidth

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

32. - T8C01

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

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

33. - T8D01

Which of the following is a digital communications mode?

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

34. - T9A12

What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

Select	Answer
A	It has more gain than a 1/4-wavelength antenna
B	It radiates at a very high angle
C	It has 10 times the power gain of a 1/4 wavelength whip
D	It eliminates distortion caused by reflected signals

35. - T9B07

Which of the following is true of PL-259 type coax connectors?

Select	Answer
A	They are watertight
B	They are preferred for microwave operation
C	They are a bayonet-type connector
D	They are commonly used at HF and VHF frequencies

Figure T-2