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. - T0A08

Where should a fuse or circuit breaker be installed in a 120V AC power circuit?

Select	Answer
A	In parallel with the hot and neutral conductors
B	In parallel with the hot conductor only
C	In series with the hot conductor only
D	In series with the hot and neutral conductors

2. - T0B08

Which is a proper grounding method for a tower?

Select	Answer
A	A ferrite-core RF choke connected between the tower and ground
B	A connection between the tower base and a cold water pipe
C	Separate eight-foot ground rods for each tower leg, bonded to the tower and each other
D	A single four-foot ground rod, driven into the ground no more than 12 inches from the base

3. - T0C12

How does RF radiation differ from ionizing radiation (radioactivity)?

Select	Answer
A	RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA
B	RF radiation can only be detected with an RF dosimeter
C	RF radiation is limited in range to a few feet
D	RF radiation is perfectly safe

4. - T1A10

What is the Radio Amateur Civil Emergency Service (RACES)?

Select	Answer
A	A radio service using amateur frequencies for emergency management or civil defense communications
B	All these choices are correct
C	An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization
D	A radio service using amateur stations for emergency management or civil defense communications

5. - T1B08

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

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

6. - T1C11

If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

Select	Answer
A	No, you must wait until the license has been renewed
B	Yes, for up to one year
C	Yes, for up to two years
D	Yes, as soon as you apply for renewal

7. - T1D07

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

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

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

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
C	English, French, or Spanish
D	Any language recognized by the ITU

10. - T2A04

What is an appropriate way to call another station on a repeater if you know the other station's call sign?

Select	Answer
A	Say the station's call sign, then identify with your call sign
B	Say "break, break," then say the station's call sign
C	Wait for the station to call CQ, then answer
D	Say "CQ" three times, then the other station's call sign

11. - T2B13

What is the purpose of a squelch function?

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

12. - T2C06

What is the Amateur Radio Emergency Service (ARES)?

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

13. - T3A01

Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

Select	Answer
A	All these choices are correct
B	The signal path encounters different concentrations of water vapor
C	VHF ionospheric propagation is very sensitive to path length
D	Multipath propagation cancels or reinforces signals

14. - T3B06

What is the formula for converting frequency to approximate wavelength in meters?

Select	Answer
A	Wavelength in meters equals frequency in hertz divided by 300
B	Wavelength in meters equals 300 divided by frequency in megahertz
C	Wavelength in meters equals frequency in megahertz divided by 300
D	Wavelength in meters equals frequency in hertz multiplied by 300

15. - T3C07

What band is best suited for communicating via meteor scatter?

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

16. - T4A09

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

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

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 bandwidth selection
C	The RIT or Clarifier
D	The AGC or limiter

18. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Amperes
B	Watts
C	Ohms
D	Volts

19. - T5B01

How many milliamperes is 1.5 amperes?

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

20. - T5C01

What describes the ability to store energy in an electric field?

Select	Answer
A	Tolerance
B	Capacitance
C	Inductance
D	Resistance

21. - T5D10

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

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

22. - T6A02

What type of component is often used as an adjustable volume control?

Select	Answer
A	Power resistor
B	Potentiometer
C	Transformer
D	Fixed resistor

23. - T6B02

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

Select	Answer
A	Fuse
B	Diode
C	Driven element
D	Resistor

24. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Connector
B	Battery
C	Transistor
D	Resistor

25. - T6D07

Which of the following is commonly used as a visual indicator?

Select	Answer
A	FET
B	Zener diode
C	LED
D	Bipolar transistor

26. - T7A09

What is the function of the SSB/CW-FM switch on a VHF power amplifier?

Select	Answer
A	Change the frequency range of the amplifier to operate in the proper segment of the band
B	Change the mode of the transmitted signal
C	Reduce the received signal noise
D	Set the amplifier for proper operation in the selected mode

27. - T7B03

Which of the following can cause radio frequency interference?

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

28. - T7C09

Which of the following causes failure of coaxial cables?

Select	Answer
A	Solder flux contamination
B	Moisture contamination
C	Rapid fluctuation in transmitter output power
D	Operation at 100% duty cycle for an extended period

29. - T7D06

Which of the following can damage a multimeter?

Select	Answer
A	Not allowing it to warm up properly
B	Failing to connect one of the probes to ground
C	Attempting to measure resistance using the voltage setting
D	Attempting to measure voltage when using the resistance setting

30. - T8A12

Which of the following is a disadvantage of FM compared with single sideband?

Select	Answer
A	All these choices are correct
B	Only one signal can be received at a time
C	FM signals are harder to tune
D	Voice quality is poorer

31. - T8B10

What is a LEO satellite?

Select	Answer
A	A sun synchronous satellite
B	A satellite in low earth orbit
C	A highly elliptical orbit satellite
D	A satellite in low energy operation mode

32. - T8C09

Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

Select	Answer
A	EchoLink
B	DMR
C	D-STAR
D	IRLP

33. - T8D01

Which of the following is a digital communications mode?

Select	Answer
A	Packet radio
B	IEEE 802.11
C	FT8
D	All these choices are correct

34. - T9A11

What is antenna gain?

Select	Answer
A	The additional power that is required in the antenna when transmitting on a higher frequency
B	The increase in signal strength in a specified direction compared to a reference antenna
C	The additional power that is added to the transmitter power
D	The increase in impedance on receive or transmit compared to a reference antenna

35. - T9B02

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

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

Figure T-1