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

2. - T0B09

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

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

3. - T0C05

Why do exposure limits vary with frequency?

Select	Answer
A	The human body absorbs more RF energy at some frequencies than at others
B	Lower frequency RF fields do not penetrate the human body
C	Lower frequency RF fields have more energy than higher frequency fields
D	Higher frequency RF fields are transient in nature

4. - T1A11

When is willful interference to other amateur radio stations permitted?

Select	Answer
A	At no time
B	To stop another amateur station that is breaking the FCC rules
C	At any time, stations in the Amateur Radio Service are not protected from willful interference
D	When making short test transmissions

5. - T1B05

How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

Select	Answer
A	Spread spectrum only
B	Emergency traffic only
C	Fixed digital message forwarding systems only
D	Fast-scan television only

6. - T1C06

From which of the following locations may an FCC-licensed amateur station transmit?

Select	Answer
A	From any vessel or craft located in international waters and documented or registered in the United States
B	From anywhere within International Telecommunication Union (ITU) Regions 2 and 3
C	From within any country that is a member of the United Nations
D	From within any country that belongs to the International Telecommunication Union

7. - T1D07

What types of amateur stations can automatically retransmit the signals of other amateur stations?

Select	Answer
A	Auxiliary, beacon, or Earth stations
B	Earth, repeater, or space stations
C	Repeater, auxiliary, or space stations
D	Beacon, repeater, or space stations

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

Select	Answer
A	The frequency authorized by the frequency coordinator
B	The frequencies printed on the license grant
C	The highest class of operator license held by anyone on the premises
D	The class of operator license held by the control operator

9. - T1F04

What language may you use for identification when operating in a phone sub-band?

Select	Answer
A	Any language recognized by the United Nations
B	English, French, or Spanish
C	English
D	Any language recognized by the ITU

10. - T2A12

What should you do before calling CQ?

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

11. - T2B13

What is the purpose of a squelch function?

Select	Answer
A	Eliminate parasitic oscillations in an RF amplifier
B	Mute the receiver audio when a signal is not present
C	Reduce a CW transmitter's key clicks
D	Reduce interference from impulse noise

12. - T2C06

What is the Amateur Radio Emergency Service (ARES)?

Select	Answer
A	A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
B	A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
C	A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
D	A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service

13. - T3A08

What is a likely cause of irregular fading of signals propagated by the ionosphere?

Select	Answer
A	Interference from thunderstorms
B	Intermodulation distortion
C	Frequency shift due to Faraday rotation
D	Random combining of signals arriving via different paths

14. - T3B03

What are the two components of a radio wave?

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

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

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

17. - T4B04

What is a way to enable quick access to a favorite frequency or channel on your transceiver?

Select	Answer
A	Enable the VOX
B	Store it in a memory channel
C	Enable the frequency offset
D	Use the scan mode to select the desired frequency

18. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Aluminum
B	Copper
C	Mercury
D	Glass

19. - T5B07

Which is equal to 3.525 MHz?

Select	Answer
A	3,525,000 kHz
B	3525 kHz
C	0.003525 kHz
D	35.25 kHz

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	MHz
B	MH
C	Mhz
D	mh

21. - T5D13

In which type of circuit is DC current the same through all components?

Select	Answer
A	Resonant
B	Branch
C	Parallel
D	Series

22. - T6A01

What electrical component opposes the flow of current in a DC circuit?

Select	Answer
A	Resistor
B	Transformer
C	Inverter
D	Inductor

23. - T6B08

What does the abbreviation FET stand for?

Select	Answer
A	Free Electron Transmitter
B	Fast Electron Transistor
C	Field Effect Transistor
D	Frequency Emission Transmitter

24. - T6C01

What is the name of an electrical wiring diagram that uses standard component symbols?

Select	Answer
A	Flow chart
B	Schematic
C	Connector pinout
D	Bill of materials

25. - T6D10

What is the function of component 2 in figure T-1?

Select	Answer
A	Convert electrical energy into radio waves
B	Give off light when current flows through it
C	Supply electrical energy
D	Control the flow of current

26. - T7A04

Which term describes the ability of a receiver to discriminate between multiple signals?

Select	Answer
A	Discrimination ratio
B	Selectivity
C	Sensitivity
D	Harmonic distortion

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

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. - T7D07

Which of the following measurements are made using a multimeter?

Select	Answer
A	Voltage and resistance
B	Impedance and reactance
C	Signal strength and noise
D	All these choices are correct

30. - T8A08

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

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

31. - T8B04

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

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

32. - T8C02

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

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

33. - T8D05

Which of the following is an application of APRS?

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

34. - T9A01

What is a beam antenna?

Select	Answer
A	An antenna that reverses the phase of received signals
B	An antenna built from aluminum I-beams
C	An antenna that concentrates signals in one direction
D	An omnidirectional antenna invented by Clarence Beam

35. - T9B05

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

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

Figure T-1