US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Anonymous User

US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - T0A02

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

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

2. - T0B11

Which of the following establishes grounding requirements for an amateur radio tower or antenna?

Select	Answer
A	FAA tower lighting regulations
B	FCC Part 97 rules
C	Local electrical codes
D	UL recommended practices

3. - T0C11

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

Select	Answer
A	The difference between the PEP and average power output of a transmitter
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 percentage of time that a transmitter is transmitting

4. - T1A07

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

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

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	In at least some segment of all these bands
D	Only in sub-bands allocated to General class or higher licensees

6. - T1C07

Which of the following can result in revocation of the station license or suspension of the operator license?

Select	Answer
A	Failure to have a copy of your license available at your station
B	Failure to provide and maintain a correct email address with the FCC
C	Failure to inform the FCC of any changes in the amateur station following performance of an RF safety environmental evaluation
D	Failure to obtain FCC type acceptance prior to using a home-built transmitter

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

8. - T1E08

Which of the following is an example of automatic control?

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

9. - T1F05

What method of call sign identification is required for a station transmitting phone signals?

Select	Answer
A	Send the call sign using only a phone emission
B	Send the call sign followed by the indicator RPT
C	Send the call sign followed by the indicator R
D	Send the call sign using a CW or phone emission

10. - T2A12

What should you do before calling CQ?

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

11. - T2B05

What would cause your FM transmission audio to be distorted on voice peaks?

Select	Answer
A	You are talking too loudly
B	Your transmit power is too high
C	You need to talk louder
D	Your repeater offset is inverted

12. - T2C07

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

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

13. - T3A02

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

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

14. - T3B03

What are the two components of a radio wave?

Select	Answer
A	Electric and magnetic fields
B	Impedance and reactance
C	Ionizing and non-ionizing radiation
D	Voltage and current

15. - T3C04

Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

Select	Answer
A	Gray-line propagation
B	Backscatter
C	Sporadic E
D	D region absorption

16. - T4A06

What signals are used in a computer-radio interface for digital mode operation?

Select	Answer
A	Antenna and RF power
B	Receive and transmit mode, status, and location
C	Receive audio, transmit audio, and transmitter keying
D	NMEA GPS location and DC power

17. - T4B12

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

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

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Hertz
B	Henry
C	Tesla
D	Farad

19. - T5B09

Which decibel value most closely represents a power increase from 5 watts to 10 watts?

Select	Answer
A	5 dB
B	10 dB
C	3 dB
D	2 dB

20. - T5C02

What is the unit of capacitance?

Select	Answer
A	The henry
B	The farad
C	The volt
D	The ohm

21. - T5D06

What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

Select	Answer
A	48 ohms
B	3 ohms
C	16 ohms
D	8 ohms

22. - T6A07

What electrical component is typically constructed as a coil of wire?

Select	Answer
A	Inductor
B	Switch
C	Capacitor
D	Diode

23. - T6B07

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

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

24. - T6C03

What is component 2 in figure T-1?

Select	Answer
A	Connector
B	Transistor
C	Resistor
D	Indicator lamp

25. - T6D01

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

Select	Answer
A	Transformer
B	Reflector
C	Amplifier
D	Rectifier

26. - T7A10

What device increases the transmitted output power from a transceiver?

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

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. - T7C10

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

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

29. - T7D08

Which of the following types of solder should not be used for radio and electronic applications?

Select	Answer
A	Tin-copper solder
B	Acid-core solder
C	Rosin-core solder
D	Lead-tin solder

30. - T8A02

What type of modulation is commonly used for VHF packet radio transmissions?

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

31. - T8B04

What mode of transmission is commonly used by amateur radio satellites?

Select	Answer
A	FM
B	All these choices are correct
C	CW/data
D	SSB

32. - T8C03

What operating activity involves contacting as many stations as possible during a specified period?

Select	Answer
A	Public service events
B	Contesting
C	Net operations
D	Simulated emergency exercises

33. - T8D10

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

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

34. - T9A02

Which of the following describes a type of antenna loading?

Select	Answer
A	Installing a spring in the base of a mobile vertical antenna to make it more flexible
B	Strengthening the radiating elements of a beam antenna to better resist wind damage
C	Inserting a resistor in the radiating portion of the antenna to make it resonant
D	Electrically lengthening by inserting inductors in radiating elements

35. - T9B04

What is the major function of an antenna tuner (antenna coupler)?

Select	Answer
A	It helps a receiver automatically tune in weak stations
B	It allows an antenna to be used on both transmit and receive
C	It automatically selects the proper antenna for the frequency band being used
D	It matches the antenna system impedance to the transceiver's output impedance

Figure T-1