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	All these choices are correct
D	It may disrupt the electrical functions of cells

2. - T0B09

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

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

3. - T0C04

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

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

4. - T1A11

When is willful interference to other amateur radio stations permitted?

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

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

6. - T1C03

What types of international communications are an FCC-licensed amateur radio station permitted to make?

Select	Answer
A	Any communications that would be permitted by an international broadcast station
B	Only communications incidental to contest exchanges; all other communications are prohibited
C	Communications incidental to conducting business or remarks of a personal nature
D	Communications incidental to the purposes of the Amateur Radio Service and remarks of a personal character

7. - T1D08

In which of the following circumstances may the control operator of an amateur station receive compensation for operating that station?

Select	Answer
A	When the communication is made to obtain emergency information for a local broadcast station
B	When the communication is related to the sale of amateur equipment by the control operator's employer
C	When the communication is incidental to classroom instruction at an educational institution
D	All these choices are correct

8. - T1E02

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

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

9. - T1F10

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

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

10. - T2A08

What is the meaning of the procedural signal “CQ”?

Select	Answer
A	Only the called station should transmit
B	Call on the quarter hour
C	Calling any station
D	Test transmission, no reply expected

11. - T2B09

Why are simplex channels designated in the VHF/UHF band plans?

Select	Answer
A	So stations with simple transmitters can access the repeater without automated offset
B	For working DX only
C	So stations within range of each other can communicate without tying up a repeater
D	For contest operation

12. - T2C05

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

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

13. - T3A10

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

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

14. - T3B07

In addition to frequency, which of the following is used to identify amateur radio bands?

Select	Answer
A	Traditional letter/number designators
B	All these choices are correct
C	The approximate wavelength in meters
D	Channel numbers

15. - T3C02

What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

Select	Answer
A	There is less atmospheric interference (static) on HF
B	Long-distance ionospheric propagation is far more common on HF
C	HF accommodates wider bandwidth signals
D	HF antennas are generally smaller

16. - T4A11

Where should the negative power return of a mobile transceiver be connected in a vehicle?

Select	Answer
A	At the antenna mount
B	To any metal part of the vehicle
C	Through the transceiver’s mounting bracket
D	At the 12 volt battery chassis ground

17. - T4B03

How is squelch adjusted so that a weak FM signal can be heard?

Select	Answer
A	Turn on the anti-squelch function
B	Enable squelch enhancement
C	Set the squelch threshold so that receiver output audio is on all the time
D	Turn up the audio level until it overcomes the squelch threshold

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Mhos
B	Siemens
C	Ohms
D	Coulombs

19. - T5B01

How many milliamperes is 1.5 amperes?

Select	Answer
A	15,000 milliamperes
B	150 milliamperes
C	1500 milliamperes
D	15 milliamperes

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	Mhz
B	MHz
C	mh
D	MH

21. - T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

Select	Answer
A	0.25 volts
B	1.5 volts
C	2.5 volts
D	1 volt

22. - T6A08

What is the function of an SPDT switch?

Select	Answer
A	Two circuits are opened or closed
B	A single circuit is opened or closed
C	A single circuit is switched between one of two other circuits
D	Two circuits are each switched between one of two other circuits

23. - T6B12

What are the names of the electrodes of a bipolar junction transistor?

Select	Answer
A	Emitter, base, collector
B	Signal, bias, power
C	Pole one, pole two, output
D	Input, output, supply

24. - T6C07

What is component 8 in figure T-2?

Select	Answer
A	Resistor
B	Inductor
C	Light emitting diode
D	Regulator IC

25. - T6D02

What is a relay?

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

26. - T7A11

Where is an RF preamplifier installed?

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

27. - T7B08

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

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

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 and RF signals can mix, causing interference
C	Ultraviolet resistant jackets prevent harmonic radiation
D	Ultraviolet light can damage the jacket and allow water to enter the cable

29. - T7D02

How is a voltmeter connected to a component to measure applied voltage?

Select	Answer
A	In series
B	In parallel
C	In phase
D	In quadrature

30. - T8A11

What is the approximate bandwidth required to transmit a CW signal?

Select	Answer
A	15 kHz
B	2.4 kHz
C	150 Hz
D	1000 Hz

31. - T8B02

What is the impact of using excessive effective radiated power on a satellite uplink?

Select	Answer
A	Blocking access by other users
B	Possibility of rebooting the satellite control computer
C	Overloading the satellite batteries
D	Possibility of commanding the satellite to an improper mode

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 method of delivering voice communications over the internet using digital techniques
D	A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet

33. - T8D07

Which of the following describes DMR?

Select	Answer
A	An automatic position tracking mode for FM mobiles communicating through repeaters
B	An automatic computer logging technique for hands-off logging when communicating while operating a vehicle
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. - T9A06

Which of the following types of antenna offers the greatest gain?

Select	Answer
A	Isotropic
B	J pole
C	Yagi
D	5/8 wave vertical

35. - T9B11

Which of the following types of feed line has the lowest loss at VHF and UHF?

Select	Answer
A	75-ohm flexible coax
B	Air-insulated hardline
C	50-ohm flexible coax
D	Multi-conductor unbalanced cable

Figure T-2