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. - T0A03

In the United States, what circuit does black wire insulation indicate in a three-wire 120 V cable?

Select	Answer
A	Black insulation is never used
B	Equipment ground
C	Hot
D	Neutral

2. - T0B06

What is the minimum safe distance from a power line to allow when installing an antenna?

Select	Answer
A	Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
B	Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
C	The height of the power line above ground
D	1/2 wavelength at the operating frequency

3. - T0C10

Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

Select	Answer
A	It takes into account the thermal effects of the final amplifier
B	It takes into account the antenna feed line loss
C	It affects the peak exposure to radiation
D	It affects the average exposure to radiation

4. - T1A08

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

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

5. - T1B08

How are US amateurs restricted in segments of bands where the Amateur Radio Service is secondary?

Select	Answer
A	Digital transmissions are not permitted in those segments
B	U.S. amateurs may find non-amateur stations in those segments, and must avoid interfering with them
C	International communications are not permitted in those segments
D	U.S. amateurs must give foreign amateur stations priority in those segments

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	Communications incidental to conducting business or remarks of a personal nature
C	Communications incidental to the purposes of the Amateur Radio Service and remarks of a personal character
D	Only communications incidental to contest exchanges; all other communications are prohibited

7. - T1D11

When may an amateur station transmit without identifying on the air?

Select	Answer
A	When the transmitted power level is below 1 watt
B	When transmitting signals to control model craft
C	When the transmissions are of a brief nature to make station adjustments
D	When the transmissions are unmodulated

8. - T1E09

Which of the following are required for remote control operation?

Select	Answer
A	All these choices are correct
B	The control operator must be at the control point
C	A control operator is required at all times
D	The control operator must indirectly manipulate the controls

9. - T1F02

How often must you identify with your FCC-assigned call sign when using tactical call signs such as “Race Headquarters”?

Select	Answer
A	At the end of each communication and every ten minutes during a communication
B	Once during every hour
C	Never, the tactical call is sufficient
D	At the end of every transmission

10. - T2A07

What is meant by "repeater offset”?

Select	Answer
A	The repeater has a time delay to prevent interference
B	The number of simultaneous transmit frequencies used by a repeater
C	The repeater station identification is done on a separate frequency
D	The difference between a repeater’s transmit and receive frequencies

11. - T2B10

Which Q signal indicates that you are receiving interference from other stations?

Select	Answer
A	QRN
B	QSB
C	QTH
D	QRM

12. - T2C08

Which of the following is a characteristic of good traffic handling?

Select	Answer
A	All these choices are correct
B	Making decisions as to whether messages are worthy of relay or delivery
C	Passing messages exactly as received
D	Ensuring that any newsworthy messages are relayed to the news media

13. - T3A02

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

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

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C01

Why are simplex UHF signals rarely heard beyond their radio horizon?

Select	Answer
A	They are too weak to go very far
B	UHF signals are usually not propagated by the ionosphere
C	FCC regulations prohibit them from going more than 50 miles
D	UHF signals are absorbed by the ionospheric D region

16. - T4A09

How can you determine the length of time that equipment can be powered from a battery?

Select	Answer
A	Multiply the square of the current rating of the battery by the input resistance of the equipment
B	Divide the battery ampere-hour rating by the average current draw of the equipment
C	Divide the watt-hour rating of the battery by the peak power consumption of the equipment
D	Multiply the watts per hour consumed by the equipment by the battery power rating

17. - T4B06

Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

Select	Answer
A	The tone squelch
B	The RIT or Clarifier
C	The bandwidth selection
D	The AGC or limiter

18. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Volts
B	Amperes
C	Ohms
D	Watts

19. - T5B07

Which is equal to 3.525 MHz?

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

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	MH
B	Mhz
C	mh
D	MHz

21. - T5D09

What is the current through a 24-ohm resistor connected across 240 volts?

Select	Answer
A	24,000 amperes
B	10 amperes
C	0.1 amperes
D	216 amperes

22. - T6A08

What is the function of an SPDT switch?

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

23. - T6B12

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

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

24. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Transistor
B	Connector
C	Resistor
D	Battery

25. - T6D04

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

Select	Answer
A	Transistor
B	Relay
C	Meter
D	Potentiometer

26. - T7A02

What is a transceiver?

Select	Answer
A	A device for converting receiver and transmitter frequencies to another band
B	A device for automatically sending and decoding Morse code
C	A device for matching feed line impedance to 50 ohms
D	A device that combines a receiver and transmitter

27. - T7B03

Which of the following can cause radio frequency interference?

Select	Answer
A	All these choices are correct
B	Fundamental overload
C	Spurious emissions
D	Harmonics

28. - T7C04

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

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

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. - T8A05

Which of the following types of signal has the narrowest bandwidth?

Select	Answer
A	CW
B	Slow-scan TV
C	SSB voice
D	FM voice

31. - T8B12

Which of the following is a way to determine whether your satellite uplink power is neither too low nor too high?

Select	Answer
A	All these choices are correct
B	Check your signal strength report in the telemetry data
C	Listen for distortion on your downlink signal
D	Your signal strength on the downlink should be about the same as the beacon

32. - T8C02

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

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

33. - T8D11

What is an ARQ transmission system?

Select	Answer
A	A method of compressing data using autonomous reiterative Q codes prior to final encoding
B	A special transmission format limited to video signals
C	An error correction method in which the receiving station detects errors and sends a request for retransmission
D	A system used to encrypt command signals to an amateur radio satellite

34. - T9A06

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

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

35. - T9B02

What is the most common impedance of coaxial cables used in amateur radio?

Select	Answer
A	50 ohms
B	12 ohms
C	8 ohms
D	600 ohms

Figure T-1