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. - T0A04

What is the purpose of a fuse in an electrical circuit?

Select	Answer
A	All these choices are correct
B	To remove power in case of overload
C	To prevent power supply ripple from damaging a component
D	To limit current to prevent shocks

2. - T0B04

Which of the following is an important safety precaution to observe when putting up an antenna tower?

Select	Answer
A	All these choices are correct
B	Look for and stay clear of any overhead electrical wires
C	Insulate the base of the tower to avoid lightning strikes
D	Wear a ground strap connected to your wrist at all times

3. - T0C10

Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

Select	Answer
A	It affects the peak exposure to radiation
B	It takes into account the antenna feed line loss
C	It takes into account the thermal effects of the final amplifier
D	It affects the average exposure to radiation

4. - T1A09

Who selects a Frequency Coordinator?

Select	Answer
A	FCC Regional Field Office
B	The FCC Office of Spectrum Management and Coordination Policy
C	Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
D	The local chapter of the Office of National Council of Independent Frequency Coordinators

5. - T1B08

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

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

6. - T1C01

For which license classes are new licenses currently available from the FCC?

Select	Answer
A	Technician, Technician Plus, General, Amateur Extra
B	Technician, General, Amateur Extra
C	Novice, Technician Plus, General, Advanced
D	Novice, Technician, General, Amateur Extra

7. - T1D10

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

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

8. - T1E03

Who must designate the station control operator?

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

9. - T1F09

What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

Select	Answer
A	Repeater station
B	Beacon station
C	Message forwarding station
D	Earth station

10. - T2A12

What should you do before calling CQ?

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

11. - T2B08

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

Select	Answer
A	The stations should negotiate continued use of the frequency
B	Use subaudible tones so both stations can share the frequency
C	Interference is inevitable, so no action is required
D	Both stations should choose another frequency to avoid conflict

12. - T2C07

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

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

13. - T3A09

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

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

14. - T3B01

What is the relationship between the electric and magnetic fields of an electromagnetic wave?

Select	Answer
A	They travel at different speeds
B	They are in parallel
C	They revolve in opposite directions
D	They are at right angles

15. - T3C08

What causes tropospheric ducting?

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

16. - T4A08

Which of the following conductors is preferred for bonding at RF?

Select	Answer
A	Twisted-pair cable
B	Steel wire
C	Copper braid removed from coaxial cable
D	Flat copper strap

17. - T4B12

What is the result of tuning an FM receiver above or below a signal’s frequency?

Select	Answer
A	Distortion of the signal’s audio
B	Generation of a heterodyne tone
C	Sideband inversion
D	Change in audio pitch

18. - T5A09

Which of the following describes alternating current?

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

19. - T5B13

Which is equal to 2425 MHz?

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

20. - T5C05

What is the unit of impedance?

Select	Answer
A	The volt
B	The coulomb
C	The ampere
D	The ohm

21. - T5D05

What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

Select	Answer
A	0.125 ohms
B	13.5 ohms
C	8 ohms
D	18 ohms

22. - T6A10

Which of the following battery chemistries is rechargeable?

Select	Answer
A	All these choices are correct
B	Lithium-ion
C	Lead-acid
D	Nickel-metal hydride

23. - T6B03

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

Select	Answer
A	Potentiometer
B	Transistor
C	Varistor
D	Thermistor

24. - T6C06

What is component 6 in figure T-2?

Select	Answer
A	Regulator IC
B	Transistor
C	Resistor
D	Capacitor

25. - T6D06

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

Select	Answer
A	Transistor
B	Diode
C	Variable capacitor
D	Transformer

26. - T7A04

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

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

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

28. - T7C08

Which instrument can be used to determine SWR?

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

29. - T7D06

Which of the following can damage a multimeter?

Select	Answer
A	Not allowing it to warm up properly
B	Failing to connect one of the probes to ground
C	Attempting to measure voltage when using the resistance setting
D	Attempting to measure resistance using the voltage setting

30. - T8A04

Which type of modulation is commonly used for VHF and UHF voice repeaters?

Select	Answer
A	PSK
B	AM
C	SSB
D	FM or PM

31. - T8B02

What is the impact of using excessive effective radiated power on a satellite uplink?

Select	Answer
A	Possibility of commanding the satellite to an improper mode
B	Overloading the satellite batteries
C	Blocking access by other users
D	Possibility of rebooting the satellite control computer

32. - T8C09

Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

Select	Answer
A	DMR
B	IRLP
C	D-STAR
D	EchoLink

33. - T8D03

What kind of data can be transmitted by APRS?

Select	Answer
A	Weather data
B	GPS position data
C	Text messages
D	All these choices are correct

34. - T9A10

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

Select	Answer
A	Equally in all directions
B	In the direction of the feed line
C	Broadside to the antenna
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 transmitter efficiency ratio
C	An indication of the quality of your station’s ground connection
D	The ratio of amplifier power output to input

Figure T-2