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

2. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	All these choices are correct
B	The antenna could contact high-voltage power lines
C	The antenna will not work properly because of induced voltages
D	The 60 Hz radiations from the feed line may increase the SWR

3. - T0C10

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

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

4. - T1A07

What is the FCC Part 97 definition of a space station?

Select	Answer
A	Any satellite orbiting Earth
B	An amateur station using amateur radio satellites for relay of signals
C	A manned satellite orbiting Earth
D	An amateur station located more than 50 km above Earth's surface

5. - T1B11

What is the maximum peak envelope power output for Technician class operators in their HF band segments?

Select	Answer
A	100 watts
B	50 watts
C	200 watts
D	10 watts

6. - T1C11

If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

Select	Answer
A	Yes, for up to one year
B	Yes, for up to two years
C	Yes, as soon as you apply for renewal
D	No, you must wait until the license has been renewed

7. - T1D06

What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

Select	Answer
A	The ITU maintains a list of words that are not permitted to be used on amateur frequencies
B	Any such language is prohibited
C	The FCC maintains a list of words that are not permitted to be used on amateur frequencies
D	There is no such prohibition

8. - T1E08

Which of the following is an example of automatic control?

Select	Answer
A	Using a computer or other device to identify automatically
B	Controlling a station over the internet
C	Using a computer or other device to send CW automatically
D	Repeater operation

9. - T1F03

When are you required to transmit your assigned call sign?

Select	Answer
A	At least once during each transmission
B	At the beginning of each contact, and every 10 minutes thereafter
C	At least every 15 minutes during and at the end of a communication
D	At least every 10 minutes during and at the end of a communication

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

11. - T2B04

Which of the following could be the reason you are unable to access a repeater whose output you can hear?

Select	Answer
A	All these choices are correct
B	Improper transceiver offset
C	You are using the wrong CTCSS tone
D	You are using the wrong DCS code

12. - T2C05

What does the term “traffic” refer to in net operation?

Select	Answer
A	Messages exchanged by net stations
B	Operation by mobile or portable stations
C	Requests to activate the net by a served agency
D	The number of stations checking in and out of a net

13. - T3A09

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

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

14. - T3B02

What property of a radio wave defines its polarization?

Select	Answer
A	The ratio of the velocity to the wavelength
B	The orientation of the magnetic field
C	The ratio of the energy in the magnetic field to the energy in the electric field
D	The orientation of the electric field

15. - T3C03

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

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

16. - T4A11

Where should the negative power return of a mobile transceiver be connected in a vehicle?

Select	Answer
A	At the antenna mount
B	At the 12 volt battery chassis ground
C	Through the transceiver’s mounting bracket
D	To any metal part of the vehicle

17. - T4B08

What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

Select	Answer
A	Permits noise or interference reduction by selecting a bandwidth matching the mode
B	Permits monitoring several modes at once by selecting a separate filter for each mode
C	Increases the number of frequencies that can be stored in memory
D	Increases the amount of offset between receive and transmit frequencies

18. - T5A11

What type of current flow is opposed by resistance?

Select	Answer
A	RF current
B	Alternating current
C	All these choices are correct
D	Direct current

19. - T5B01

How many milliamperes is 1.5 amperes?

Select	Answer
A	1500 milliamperes
B	15 milliamperes
C	150 milliamperes
D	15,000 milliamperes

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	mh
B	MH
C	Mhz
D	MHz

21. - T5D08

What is the current through a 100-ohm resistor connected across 200 volts?

Select	Answer
A	100 amperes
B	0.5 amperes
C	2 amperes
D	20,000 amperes

22. - T6A08

What is the function of an SPDT switch?

Select	Answer
A	Two circuits are each switched between one of two other circuits
B	A single circuit is switched between one of two other circuits
C	A single circuit is opened or closed
D	Two circuits are opened or closed

23. - T6B09

What are the names for the electrodes of a diode?

Select	Answer
A	Source and drain
B	Gate and base
C	Anode and cathode
D	Plus and minus

24. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Resistor
B	Transistor
C	Connector
D	Battery

25. - T6D08

Which of the following is combined with an inductor to make a resonant circuit?

Select	Answer
A	Zener diode
B	Capacitor
C	Potentiometer
D	Resistor

26. - T7A08

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

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

27. - T7B08

What should you do if something in a neighbor’s home is causing harmful interference to your amateur station?

Select	Answer
A	Make sure your station meets the standards of good amateur practice
B	All these choices are correct
C	Politely inform your neighbor that FCC rules prohibit the use of devices that cause interference
D	Work with your neighbor to identify the offending device

28. - T7C06

What does an SWR reading of 4:1 indicate?

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

29. - T7D11

Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

Select	Answer
A	Ensure that the circuit is operating at the correct frequency
B	Ensure that the applied voltages are correct
C	Ensure that the circuit is not powered
D	Ensure that the circuit is grounded

30. - T8A06

Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

Select	Answer
A	Lower sideband
B	Suppressed sideband
C	Upper sideband
D	Inverted sideband

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	A licensed radio amateur who has been certified by the protocol developer
C	A licensed radio amateur with a transmitter equipped for interrogating the satellite
D	Anyone

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	EchoLink
B	D-STAR
C	IRLP
D	DMR

33. - T8D09

What is CW?

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

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. - T9B05

What happens as the frequency of a signal in coaxial cable is increased?

Select	Answer
A	The loss increases
B	The characteristic impedance decreases
C	The loss decreases
D	The characteristic impedance increases

Figure T-1