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. - T0A06

What is a good way to guard against electrical shock at your station?

Select	Answer
A	Use three-wire cords and plugs for all AC powered equipment
B	Connect all AC powered station equipment to a common safety ground
C	All these choices are correct
D	Install mechanical interlocks in high-voltage circuits

2. - T0B08

Which is a proper grounding method for a tower?

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

3. - T0C03

How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?

Select	Answer
A	There is no adjustment allowed for lower duty cycle
B	It decreases by 50 percent
C	It increases by a factor of 3
D	It increases by a factor of 2

4. - T1A10

What is the Radio Amateur Civil Emergency Service (RACES)?

Select	Answer
A	An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization
B	A radio service using amateur stations for emergency management or civil defense communications
C	A radio service using amateur frequencies for emergency management or civil defense communications
D	All these choices are correct

5. - T1B10

Where may SSB phone be used in amateur bands above 50 MHz?

Select	Answer
A	Only in sub-bands allocated to General class or higher licensees
B	Only on repeaters
C	On any band if the power is limited to 25 watts
D	In at least some segment of all these bands

6. - T1C05

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

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

7. - T1D07

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

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

8. - T1E03

Who must designate the station control operator?

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

9. - T1F01

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

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

10. - T2A06

Which of the following is required when making on-the-air test transmissions?

Select	Answer
A	Identify the transmitting station
B	Notify the FCC of the transmissions
C	All these choices are correct
D	Conduct tests only between 10 p.m. and 6 a.m. local time

11. - T2B07

How can you join a digital repeater’s “talkgroup”?

Select	Answer
A	Program your radio with the group’s ID or code
B	Register your radio with the local FCC office
C	Join the repeater owner’s club
D	Sign your call after the courtesy tone

12. - T2C04

What is RACES?

Select	Answer
A	An emergency organization combining amateur radio and citizens band operators and frequencies
B	An FCC part 97 amateur radio service for civil defense communications during national emergencies
C	An international radio experimentation society
D	A radio contest held in a short period, sometimes called a “sprint”

13. - T3A07

What weather condition might decrease range at microwave frequencies?

Select	Answer
A	Low barometric pressure
B	Colder temperatures
C	Precipitation
D	High winds

14. - T3B09

What frequency range is referred to as UHF?

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

15. - T3C09

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

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

16. - T4A06

What signals are used in a computer-radio interface for digital mode operation?

Select	Answer
A	Antenna and RF power
B	Receive audio, transmit audio, and transmitter keying
C	NMEA GPS location and DC power
D	Receive and transmit mode, status, and location

17. - T4B05

What does the scanning function of an FM transceiver do?

Select	Answer
A	Checks incoming signal deviation
B	Prevents interference to nearby repeaters
C	Tunes through a range of frequencies to check for activity
D	Checks for messages left on a digital bulletin board

18. - T5A10

Which term describes the rate at which electrical energy is used?

Select	Answer
A	Current
B	Resistance
C	Voltage
D	Power

19. - T5B02

Which is equal to 1,500,000 hertz?

Select	Answer
A	15 GHz
B	150 kHz
C	1500 MHz
D	1500 kHz

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	mh
B	MH
C	MHz
D	Mhz

21. - T5D11

What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

Select	Answer
A	9 volts
B	11 volts
C	1 volt
D	10 volts

22. - T6A01

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

Select	Answer
A	Inductor
B	Transformer
C	Resistor
D	Inverter

23. - T6B03

Which of these components can be used as an electronic switch?

Select	Answer
A	Varistor
B	Potentiometer
C	Transistor
D	Thermistor

24. - T6C01

What is the name of an electrical wiring diagram that uses standard component symbols?

Select	Answer
A	Bill of materials
B	Flow chart
C	Schematic
D	Connector pinout

25. - T6D02

What is a relay?

Select	Answer
A	A pass transistor
B	A current controlled amplifier
C	An electrically-controlled switch
D	An inverting amplifier

26. - T7A04

Which term describes the ability of a receiver to discriminate between multiple signals?

Select	Answer
A	Sensitivity
B	Harmonic distortion
C	Selectivity
D	Discrimination ratio

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. - T7C09

Which of the following causes failure of coaxial cables?

Select	Answer
A	Solder flux contamination
B	Rapid fluctuation in transmitter output power
C	Moisture contamination
D	Operation at 100% duty cycle for an extended period

29. - T7D08

Which of the following types of solder should not be used for radio and electronic applications?

Select	Answer
A	Lead-tin solder
B	Tin-copper solder
C	Acid-core solder
D	Rosin-core solder

30. - T8A09

What is the approximate bandwidth of a VHF repeater FM voice signal?

Select	Answer
A	About 150 kHz
B	Between 10 and 15 kHz
C	Less than 500 Hz
D	Between 50 and 125 kHz

31. - T8B11

Who may receive telemetry from a space station?

Select	Answer
A	A licensed radio amateur who has registered for an access code from AMSAT
B	Anyone
C	A licensed radio amateur who has been certified by the protocol developer
D	A licensed radio amateur with a transmitter equipped for interrogating the satellite

32. - T8C10

What is required before using the EchoLink system?

Select	Answer
A	Complete the required EchoLink training
B	Purchase a license to use the EchoLink software
C	All these choices are correct
D	Register your call sign and provide proof of license

33. - T8D06

What does the abbreviation "PSK" mean?

Select	Answer
A	Phase Shift Keying
B	Pulse Shift Keying
C	Packet Short Keying
D	Phased Slide Keying

34. - T9A10

In which direction does a half-wave dipole antenna radiate the strongest signal?

Select	Answer
A	Equally in all directions
B	Broadside to the antenna
C	In the direction of the feed line
D	Off the ends of the antenna

35. - T9B02

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

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