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

2. - T0B01

Which of the following is good practice when installing ground wires on a tower for lightning protection?

Select	Answer
A	Make sure all ground wire bends are right angles
B	Ensure that connections are short and direct
C	All these choices are correct
D	Put a drip loop in the ground connection to prevent water damage to the ground system

3. - T0C11

What is the definition of duty cycle during the averaging time for RF exposure?

Select	Answer
A	The percentage of time that a transmitter is transmitting
B	The percentage of time that a transmitter is not transmitting
C	The difference between the lowest power output and the highest power output of a transmitter
D	The difference between the PEP and average power output of a transmitter

4. - T1A11

When is willful interference to other amateur radio stations permitted?

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

5. - T1B10

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

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

6. - T1C09

What is the grace period for renewal if an amateur license expires?

Select	Answer
A	Three years
B	Two years
C	Five years
D	Ten years

7. - T1D01

With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

Select	Answer
A	Any country banned from such communications by the International Amateur Radio Union (IARU)
B	Any country banned from making such communications by the American Radio Relay League (ARRL)
C	Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications
D	Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

Select	Answer
A	The class of operator license held by the control operator
B	The frequencies printed on the license grant
C	The frequency authorized by the frequency coordinator
D	The highest class of operator license held by anyone on the premises

9. - T1F10

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

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

10. - T2A12

What should you do before calling CQ?

Select	Answer
A	Ask if the frequency is in use
B	All these choices are correct
C	Make sure you are authorized to use that frequency
D	Listen first to be sure that no one else is using the frequency

11. - T2B09

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

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

12. - T2C07

Which of the following is standard practice when you participate in a net?

Select	Answer
A	Record the time of each of your transmissions
B	When first responding to the net control station, transmit your call sign, name, and address as in the FCC database
C	All these choices are correct
D	Unless you are reporting an emergency, transmit only when directed by the net control station

13. - T3A09

Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

Select	Answer
A	FM voice is unusable
B	Both the transmitting and receiving antennas must be of the same polarization
C	Either vertically or horizontally polarized antennas may be used for transmission or reception
D	Digital modes are unusable

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 shorter as frequency increases
D	Wavelength gets longer as frequency increases

15. - T3C08

What causes tropospheric ducting?

Select	Answer
A	Updrafts from hurricanes and tornadoes
B	Temperature inversions in the atmosphere
C	Sunspots and solar flares
D	Discharges of lightning during electrical storms

16. - T4A03

Why are short, heavy-gauge wires used for a transceiver’s DC power connection?

Select	Answer
A	To minimize voltage drop when transmitting
B	All these choices are correct
C	To avoid RF interference
D	To provide a good counterpoise for the antenna

17. - T4B11

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

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

18. - T5A09

Which of the following describes alternating current?

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

19. - T5B02

Which is equal to 1,500,000 hertz?

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

20. - T5C10

How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

Select	Answer
A	30 watts
B	0.208 watts
C	4.8 watts
D	14.5 watts

21. - T5D09

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

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

22. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Capacitance
B	Field strength
C	Resistance
D	Inductance

23. - T6B12

What are the names of the electrodes of a bipolar junction transistor?

Select	Answer
A	Input, output, supply
B	Signal, bias, power
C	Emitter, base, collector
D	Pole one, pole two, output

24. - T6C09

What is component 4 in figure T-2?

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

25. - T6D01

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Select	Answer
A	Amplifier
B	Reflector
C	Rectifier
D	Transformer

26. - T7A10

What device increases the transmitted output power from a transceiver?

Select	Answer
A	A voltage divider
B	All these choices are correct
C	An RF power amplifier
D	An impedance network

27. - T7B09

What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

Select	Answer
A	Add a preamplifier to the TV antenna input
B	Add a low-pass filter to the TV antenna input
C	Be sure all TV feed line coaxial connectors are installed properly
D	Add a high-pass filter to the TV antenna input

28. - T7C08

Which instrument can be used to determine SWR?

Select	Answer
A	Voltmeter
B	Iambic pentameter
C	Ohmmeter
D	Directional wattmeter

29. - T7D09

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

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

30. - T8A05

Which of the following types of signal has the narrowest bandwidth?

Select	Answer
A	Slow-scan TV
B	SSB voice
C	CW
D	FM voice

31. - T8B07

What is Doppler shift in reference to satellite communications?

Select	Answer
A	An observed change in signal frequency caused by relative motion between the satellite and Earth station
B	A mode where the satellite receives signals on one band and transmits on another
C	A change in the satellite orbit
D	A special digital communications mode for some satellites

32. - T8C07

What is Voice Over Internet Protocol (VoIP)?

Select	Answer
A	A technique employed to “spot” DX stations via the internet
B	A set of rules specifying how to identify your station when linked over the internet to another station
C	A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
D	A method of delivering voice communications over the internet using digital techniques

33. - T8D10

Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

Select	Answer
A	All these choices are correct
B	Weak signal propagation beacons
C	Earth-Moon-Earth
D	Meteor scatter

34. - T9A08

What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

Select	Answer
A	50
B	19
C	12
D	112

35. - T9B01

What is a benefit of low SWR?

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

Figure T-2