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. - T0A12

Which of the following precautions should be taken when measuring high voltages with a voltmeter?

Select	Answer
A	Ensure that the circuit is grounded through the voltmeter
B	Ensure that the voltmeter and leads are rated for use at the voltages to be measured
C	Ensure that the voltmeter has very low impedance
D	Ensure that the voltmeter is set to the correct frequency

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

3. - T0C07

What hazard is created by touching an antenna during a transmission?

Select	Answer
A	All these choices are correct
B	Electrocution
C	Radiation poisoning
D	RF burn to skin

4. - T1A08

Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

Select	Answer
A	International Telecommunication Union
B	Volunteer Frequency Coordinator recognized by local amateurs
C	FCC Regional Field Office
D	Frequency Spectrum Manager appointed by the FCC

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	10 watts
D	200 watts

6. - T1C02

Who may select a desired call sign under the vanity call sign rules?

Select	Answer
A	Only a licensed amateur with a General or Amateur Extra Class license
B	Only a licensed amateur with an Amateur Extra Class license
C	Any licensed amateur
D	Only a licensed amateur who has been licensed continuously for more than 10 years

7. - T1D03

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

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

8. - T1E02

Who may be the control operator of a station communicating through an amateur satellite or space station?

Select	Answer
A	Only an Amateur Extra Class operator
B	A General class or higher licensee with a satellite operator certification
C	Any amateur allowed to transmit on the satellite uplink frequency
D	Only an Amateur Extra Class operator who is also an AMSAT member

9. - T1F11

Which of the following is a requirement for the issuance of a club station license grant?

Select	Answer
A	The trustee must have an Amateur Extra Class operator license grant
B	The club must have at least four members
C	All these choices are correct
D	The club must be registered with the American Radio Relay League

10. - T2A12

What should you do before calling CQ?

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

11. - T2B07

How can you join a digital repeater’s “talkgroup”?

Select	Answer
A	Register your radio with the local FCC office
B	Join the repeater owner’s club
C	Program your radio with the group’s ID or code
D	Sign your call after the courtesy tone

12. - T2C05

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

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

13. - T3A03

What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

Select	Answer
A	Vertical
B	Left-hand circular
C	Horizontal
D	Right-hand circular

14. - T3B04

What is the velocity of a radio wave traveling through free space?

Select	Answer
A	Speed inversely proportional to its wavelength
B	Speed that increases as the frequency increases
C	Speed of sound
D	Speed of light

15. - T3C07

What band is best suited for communicating via meteor scatter?

Select	Answer
A	2 meters
B	33 centimeters
C	6 meters
D	70 centimeters

16. - T4A07

Which of the following connections is made between a computer and a transceiver to use computer software when operating digital modes?

Select	Answer
A	Computer “line in” to transceiver push-to-talk
B	Computer “line in” to transceiver speaker connector
C	Computer “line out” to transceiver push-to-talk
D	Computer “line out” to transceiver speaker connector

17. - T4B10

Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

Select	Answer
A	1000 Hz
B	5000 Hz
C	2400 Hz
D	500 Hz

18. - T5A09

Which of the following describes alternating current?

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

19. - T5B12

Which is equal to 28400 kHz?

Select	Answer
A	28.400 kHz
B	284.00 MHz
C	28.400 MHz
D	2.800 MHz

20. - T5C04

What is the unit of inductance?

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

21. - T5D11

What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

Select	Answer
A	11 volts
B	10 volts
C	1 volt
D	9 volts

22. - T6A05

What type of electrical component consists of conductive surfaces separated by an insulator?

Select	Answer
A	Resistor
B	Oscillator
C	Capacitor
D	Potentiometer

23. - T6B02

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

Select	Answer
A	Driven element
B	Fuse
C	Diode
D	Resistor

24. - T6C11

What is component 4 in figure T-3?

Select	Answer
A	Antenna
B	Transmitter
C	Ground
D	Dummy load

25. - T6D04

Which of the following displays an electrical quantity as a numeric value?

Select	Answer
A	Meter
B	Transistor
C	Potentiometer
D	Relay

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. - T7B05

How can fundamental overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

Select	Answer
A	Switch the transmitter from FM to SSB
B	Switch the transmitter to a narrow-band mode
C	Block the amateur signal with a filter at the antenna input of the affected receiver
D	Block the interfering signal with a filter on the amateur transmitter

28. - T7C07

What happens to power lost in a feed line?

Select	Answer
A	It distorts the signal
B	It increases the SWR
C	It is radiated as harmonics
D	It is converted into heat

29. - T7D11

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

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

30. - T8A08

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

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

31. - T8B07

What is Doppler shift in reference to satellite communications?

Select	Answer
A	A mode where the satellite receives signals on one band and transmits on another
B	A change in the satellite orbit
C	A special digital communications mode for some satellites
D	An observed change in signal frequency caused by relative motion between the satellite and Earth station

32. - T8C07

What is Voice Over Internet Protocol (VoIP)?

Select	Answer
A	A technique employed to “spot” DX stations via the internet
B	A set of rules specifying how to identify your station when linked over the internet to another station
C	A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
D	A method of delivering voice communications over the internet using digital techniques

33. - T8D05

Which of the following is an application of APRS?

Select	Answer
A	Providing information on the number of stations signed into a repeater
B	Providing real-time tactical digital communications in conjunction with a map showing the locations of stations
C	Providing voice over internet connection between repeaters
D	Showing automatically the number of packets transmitted via PACTOR during a specific time interval

34. - T9A09

What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

Select	Answer
A	112
B	50
C	6
D	236

35. - T9B10

What is the electrical difference between RG-58 and RG-213 coaxial cable?

Select	Answer
A	RG-58 cable has two shields
B	RG-213 cable has less loss at a given frequency
C	There is no significant difference between the two types
D	RG-58 cable can handle higher power levels

Figure T-3