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. - T0A02

What health hazard is presented by electrical current flowing through the body?

Select	Answer
A	It may disrupt the electrical functions of cells
B	It may cause involuntary muscle contractions
C	All these choices are correct
D	It may cause injury by heating tissue

2. - T0B04

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

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

3. - T0C08

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

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

4. - T1A09

Who selects a Frequency Coordinator?

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

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

6. - T1C05

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

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

7. - T1D03

When is it permissible to transmit messages encoded to obscure their meaning?

Select	Answer
A	Only when transmitting control commands to space stations or radio control craft
B	Never
C	Only when transmitting certain approved digital codes
D	Only during contests

8. - T1E07

When the control operator is not the station licensee, who is responsible for the proper operation of the station?

Select	Answer
A	All licensed amateurs who are present at the operation
B	Only the station licensee
C	The control operator and the station licensee
D	Only the control operator

9. - T1F10

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

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

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 "break, break," then say the station's call sign
C	Say the station's call sign, then identify with your call sign
D	Say "CQ" three times, then the other station's 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	You are using the wrong DCS code
B	You are using the wrong CTCSS tone
C	All these choices are correct
D	Improper transceiver offset

12. - T2C08

Which of the following is a characteristic of good traffic handling?

Select	Answer
A	All these choices are correct
B	Ensuring that any newsworthy messages are relayed to the news media
C	Making decisions as to whether messages are worthy of relay or delivery
D	Passing messages exactly as received

13. - T3A01

Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

Select	Answer
A	The signal path encounters different concentrations of water vapor
B	Multipath propagation cancels or reinforces signals
C	All these choices are correct
D	VHF ionospheric propagation is very sensitive to path length

14. - T3B01

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

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

15. - T3C09

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

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

16. - T4A01

Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

Select	Answer
A	13.8 volts at 12 amperes
B	13.8 volts at 4 amperes
C	24.0 volts at 12 amperes
D	24.0 volts at 4 amperes

17. - T4B05

What does the scanning function of an FM transceiver do?

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

18. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Copper
B	Glass
C	Aluminum
D	Mercury

19. - T5B12

Which is equal to 28400 kHz?

Select	Answer
A	28.400 kHz
B	284.00 MHz
C	2.800 MHz
D	28.400 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	4.8 watts
C	14.5 watts
D	0.208 watts

21. - T5D14

In which type of circuit is voltage the same across all components?

Select	Answer
A	Resonant
B	Series
C	Parallel
D	Branch

22. - T6A10

Which of the following battery chemistries is rechargeable?

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

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Transistor
B	Resistor
C	Transformer
D	Reactor

24. - T6C12

Which of the following is accurately represented in electrical schematics?

Select	Answer
A	Wire lengths
B	Physical appearance of components
C	All these choices are correct
D	Component connections

25. - T6D01

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

Select	Answer
A	Rectifier
B	Amplifier
C	Transformer
D	Reflector

26. - T7A08

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

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

27. - T7B08

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

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

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	Operation at 100% duty cycle for an extended period
D	Moisture contamination

29. - T7D09

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

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

30. - T8A08

What is the approximate bandwidth of a typical single sideband (SSB) voice signal?

Select	Answer
A	1 kHz
B	3 kHz
C	6 kHz
D	15 kHz

31. - T8B03

Which of the following are provided by satellite tracking programs?

Select	Answer
A	Maps showing the real-time position of the satellite track over Earth
B	The time, azimuth, and elevation of the start, maximum altitude, and end of a pass
C	All these choices are correct
D	The apparent frequency of the satellite transmission, including effects of Doppler shift

32. - T8C05

What is a grid locator?

Select	Answer
A	A letter-number designator assigned to an azimuth and elevation
B	A letter-number designator assigned to a geographic location
C	An instrument for radio direction finding
D	An instrument for neutralizing a final amplifier

33. - T8D07

Which of the following describes DMR?

Select	Answer
A	An automatic computer logging technique for hands-off logging when communicating while operating a vehicle
B	An automatic position tracking mode for FM mobiles communicating through repeaters
C	A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
D	A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction

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 eliminates distortion caused by reflected signals
C	It has 10 times the power gain of a 1/4 wavelength whip
D	It radiates at a very high angle

35. - T9B06

Which of the following RF connector types is most suitable for frequencies above 400 MHz?

Select	Answer
A	Type N
B	UHF (PL-259/SO-239)
C	DB-25
D	RS-213