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

2. - T0B07

Which of the following is an important safety rule to remember when using a crank-up tower?

Select	Answer
A	This type of tower must never be grounded
B	All these choices are correct
C	This type of tower must never be painted
D	This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed

3. - T0C04

What factors affect the RF exposure of people near an amateur station antenna?

Select	Answer
A	Distance from the antenna to a person
B	Frequency and power level of the RF field
C	All these choices are correct
D	Radiation pattern of the antenna

4. - T1A06

What is the FCC Part 97 definition of a beacon?

Select	Answer
A	A continuous transmission of weather information authorized in the amateur bands by the National Weather Service
B	A bulletin sent by the FCC to announce a national emergency
C	A government transmitter marking the amateur radio band edges
D	An amateur station transmitting communications for the purposes of observing propagation or related experimental activities

5. - T1B02

Which amateurs may contact the International Space Station (ISS) on VHF bands?

Select	Answer
A	Any amateur holding a General class or higher license
B	Any amateur holding a Technician class or higher license
C	Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
D	Any amateur holding a General class or higher license who has applied for and received approval from NASA

6. - T1C05

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

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

7. - T1D06

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

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

8. - T1E07

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

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

9. - T1F08

What is the definition of third party communications?

Select	Answer
A	Operation when the transmitting equipment is licensed to a person other than the control operator
B	A message from a control operator to another amateur station control operator on behalf of another person
C	Amateur radio communications where three stations are in communications with one another
D	Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments

10. - T2A02

What is the national calling frequency for FM simplex operations in the 2 meter band?

Select	Answer
A	432.100 MHz
B	446.000 MHz
C	146.520 MHz
D	145.000 MHz

11. - T2B01

How is a VHF/UHF transceiver’s “reverse” function used?

Select	Answer
A	To reduce power output
B	To listen on a repeater’s input frequency
C	To listen on a repeater’s output frequency
D	To increase power output

12. - T2C03

What technique is used to ensure that voice messages containing unusual words are received correctly?

Select	Answer
A	Spell the words using a standard phonetic alphabet
B	All these choices are correct
C	Speak very loudly into the microphone
D	Send the words by voice and Morse code

13. - T3A10

What effect does multi-path propagation have on data transmissions?

Select	Answer
A	Transmission rates must be decreased by a factor equal to the number of separate paths observed
B	Transmission rates must be increased by a factor equal to the number of separate paths observed
C	Error rates are likely to increase
D	No significant changes will occur if the signals are transmitted using FM

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C11

Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

Select	Answer
A	Radio waves are not blocked by dust particles
B	The atmosphere refracts radio waves slightly
C	Radio waves are blocked by dust particles
D	Radio signals move somewhat faster than the speed of light

16. - T4A05

Where should an RF power meter be installed?

Select	Answer
A	In the power supply cable, as close as possible to the radio
B	In the feed line, between the transmitter and antenna
C	In parallel with the push-to-talk line and the antenna
D	At the power supply output

17. - T4B09

How is a specific group of stations selected on a digital voice transceiver?

Select	Answer
A	By activating automatic identification
B	By entering the group’s identification code
C	By enabling the group’s CTCSS tone
D	By retrieving the frequencies from transceiver memory

18. - T5A12

What describes the number of times per second that an alternating current makes a complete cycle?

Select	Answer
A	Wavelength
B	Pulse rate
C	Speed
D	Frequency

19. - T5B08

Which is equal to 1,000,000 picofarads?

Select	Answer
A	0.001 microfarads
B	1,000,000,000 microfarads
C	1000 microfarads
D	1 microfarad

20. - T5C02

What is the unit of capacitance?

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

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	18 ohms
B	8 ohms
C	13.5 ohms
D	0.125 ohms

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Diode
B	Inductor
C	Capacitor
D	Varistor

23. - T6B02

What electronic component allows current to flow in only one direction?

Select	Answer
A	Diode
B	Driven element
C	Resistor
D	Fuse

24. - T6C11

What is component 4 in figure T-3?

Select	Answer
A	Antenna
B	Transmitter
C	Dummy load
D	Ground

25. - T6D02

What is a relay?

Select	Answer
A	A pass transistor
B	An inverting amplifier
C	A current controlled amplifier
D	An electrically-controlled switch

26. - T7A11

Where is an RF preamplifier installed?

Select	Answer
A	Between the antenna and receiver
B	Between the transmitter and the antenna tuner
C	At the output of the receiver audio amplifier
D	At the output of the transmitter power amplifier

27. - T7B08

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

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

28. - T7C04

What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

Select	Answer
A	Zero
B	Full Scale
C	1:1
D	50:50

29. - T7D01

Which instrument would you use to measure electric potential?

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

30. - T8A02

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

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

31. - T8B01

What telemetry information is typically transmitted by satellite beacons?

Select	Answer
A	All these choices are correct
B	Time of day accurate to plus or minus 1/10 second
C	The signal strength of received signals
D	Health and status of the satellite

32. - T8C02

Which of these items would be useful for a hidden transmitter hunt?

Select	Answer
A	Calibrated SWR meter
B	A directional antenna
C	A calibrated noise bridge
D	All these choices are correct

33. - T8D04

What type of transmission is indicated by the term "NTSC?"

Select	Answer
A	A Normal Transmission mode in Static Circuit
B	A frame compression scheme for TV signals
C	A special mode for satellite uplink
D	An analog fast-scan color TV signal

34. - T9A12

What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

Select	Answer
A	It eliminates distortion caused by reflected signals
B	It radiates at a very high angle
C	It has 10 times the power gain of a 1/4 wavelength whip
D	It has more gain than a 1/4-wavelength antenna

35. - T9B12

What is standing wave ratio (SWR)?

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

Figure T-3