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. - T0B03

Under what circumstances is it safe to climb a tower without a helper or observer?

Select	Answer
A	When no electrical work is being performed
B	When the work being done is not more than 20 feet above the ground
C	Never
D	When no mechanical work is being performed

3. - T0C08

Which of the following actions can reduce exposure to RF radiation?

Select	Answer
A	Relocate antennas
B	All these choices are correct
C	Relocate the transmitter
D	Increase the duty cycle

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	Any satellite orbiting Earth
C	An amateur station located more than 50 km above Earth's surface
D	A manned satellite orbiting Earth

5. - T1B09

Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

Select	Answer
A	To allow for transmitter frequency drift
B	So that modulation sidebands do not extend beyond the band edge
C	To allow for calibration error in the transmitter frequency display
D	All these choices are correct

6. - T1C06

From which of the following locations may an FCC-licensed amateur station transmit?

Select	Answer
A	From within any country that belongs to the International Telecommunication Union
B	From anywhere within International Telecommunication Union (ITU) Regions 2 and 3
C	From within any country that is a member of the United Nations
D	From any vessel or craft located in international waters and documented or registered in the United States

7. - T1D04

Under what conditions is an amateur station authorized to transmit music using a phone emission?

Select	Answer
A	When transmissions are limited to less than three minutes per hour
B	When incidental to an authorized retransmission of manned spacecraft communications
C	When the music is transmitted above 1280 MHz
D	When the music produces no spurious emissions

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

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

9. - T1F04

What language may you use for identification when operating in a phone sub-band?

Select	Answer
A	Any language recognized by the ITU
B	English
C	Any language recognized by the United Nations
D	English, French, or Spanish

10. - T2A04

What is an appropriate way to call another station on a repeater if you know the other station's call sign?

Select	Answer
A	Say the station's call sign, then identify with your call sign
B	Say "CQ" three times, then the other station's call sign
C	Wait for the station to call CQ, then answer
D	Say "break, break," then say the station's call sign

11. - T2B11

Which Q signal indicates that you are changing frequency?

Select	Answer
A	QSL
B	QSY
C	QRZ
D	QRU

12. - T2C02

Which of the following are typical duties of a Net Control Station?

Select	Answer
A	Ensure that all stations checking into the net are properly licensed for operation on the net frequency
B	All these choices are correct
C	Choose the regular net meeting time and frequency
D	Call the net to order and direct communications between stations checking in

13. - T3A02

What is the effect of vegetation on UHF and microwave signals?

Select	Answer
A	Polarization rotation
B	Amplification
C	Absorption
D	Knife-edge diffraction

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C10

Which of the following bands may provide long-distance communications via the ionosphere’s F region during the peak of the sunspot cycle?

Select	Answer
A	6 and 10 meters
B	23 centimeters
C	All these choices are correct
D	70 centimeters and 1.25 meters

16. - T4A02

Which of the following should be considered when selecting an accessory SWR meter?

Select	Answer
A	All these choices are correct
B	The types of modulation being used at the station
C	The distance that the meter will be located from the antenna
D	The frequency and power level at which the measurements will be made

17. - T4B02

Which of the following can be used to enter a transceiver’s operating frequency?

Select	Answer
A	The keypad or VFO knob
B	The CTCSS or DTMF encoder
C	The Automatic Frequency Control
D	All these choices are correct

18. - T5A10

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

Select	Answer
A	Voltage
B	Power
C	Current
D	Resistance

19. - T5B10

Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

Select	Answer
A	-3 dB
B	-1 dB
C	-9 dB
D	-6 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 = E – I
C	P = E / I
D	P = I + E

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	1 volt
C	11 volts
D	10 volts

22. - T6A09

What electrical component is used to protect other circuit components from current overloads?

Select	Answer
A	Varactor
B	Thyratron
C	All these choices are correct
D	Fuse

23. - T6B07

What causes a light-emitting diode (LED) to emit light?

Select	Answer
A	Reverse current
B	Capacitively-coupled RF signal
C	Inductively-coupled RF signal
D	Forward current

24. - T6C09

What is component 4 in figure T-2?

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

25. - T6D11

Which of the following is a resonant or tuned circuit?

Select	Answer
A	An inductor and a capacitor in series or parallel
B	A circuit designed to provide high-fidelity audio
C	A linear voltage regulator
D	A resistor circuit used for reducing standing wave ratio

26. - T7A09

What is the function of the SSB/CW-FM switch on a VHF power amplifier?

Select	Answer
A	Reduce the received signal noise
B	Set the amplifier for proper operation in the selected mode
C	Change the mode of the transmitted signal
D	Change the frequency range of the amplifier to operate in the proper segment of the band

27. - T7B02

What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

Select	Answer
A	The receiver is unable to reject strong signals outside the AM or FM band
B	The microphone gain of the transmitter is turned up too high
C	The audio amplifier of the transmitter is overloaded
D	The deviation of an FM transmitter is set too low

28. - T7C10

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

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

29. - T7D04

Which instrument is used to measure electric current?

Select	Answer
A	An ohmmeter
B	A voltmeter
C	An ammeter
D	An electrometer

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	SSB signals have narrower bandwidth
C	All these choices are correct
D	SSB signals are less susceptible to interference

31. - T8B05

What is a satellite beacon?

Select	Answer
A	A transmission from a satellite that contains status information
B	The primary transmit antenna on the satellite
C	An indicator light that shows where to point your antenna
D	A reflective surface on the satellite

32. - T8C04

Which of the following is good procedure when contacting another station in a contest?

Select	Answer
A	Sign only the last two letters of your call if there are many other stations calling
B	Contact the station twice to be sure that you are in his log
C	All these choices are correct
D	Send only the minimum information needed for proper identification and the contest exchange

33. - T8D09

What is CW?

Select	Answer
A	A type of electromagnetic propagation
B	A technique for coil winding
C	Another name for a Morse code transmission
D	A digital mode used primarily on 2 meter FM

34. - T9A10

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

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

35. - T9B12

What is standing wave ratio (SWR)?

Select	Answer
A	A measure of how well a load is matched to a transmission line
B	The ratio of amplifier power output to input
C	An indication of the quality of your station’s ground connection
D	The transmitter efficiency ratio

Figure T-2