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

2. - T0B01

Which of the following is good practice when installing ground wires on a tower for lightning protection?

Select	Answer
A	All these choices are correct
B	Ensure that connections are short and direct
C	Put a drip loop in the ground connection to prevent water damage to the ground system
D	Make sure all ground wire bends are right angles

3. - T0C08

Which of the following actions can reduce exposure to RF radiation?

Select	Answer
A	Relocate antennas
B	Relocate the transmitter
C	Increase the duty cycle
D	All these choices are correct

4. - T1A09

Who selects a Frequency Coordinator?

Select	Answer
A	The local chapter of the Office of National Council of Independent Frequency Coordinators
B	The FCC Office of Spectrum Management and Coordination Policy
C	Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
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	International communications are not permitted in those segments
C	U.S. amateurs may find non-amateur stations in those segments, and must avoid interfering with them
D	U.S. amateurs must give foreign amateur stations priority in those segments

6. - T1C05

Which of the following is a valid Technician class call sign format?

Select	Answer
A	All these choices are correct
B	KA1X
C	W1XX
D	KF1XXX

7. - T1D07

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

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

8. - T1E02

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

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

9. - T1F06

Which of the following self-assigned indicators are acceptable when using a phone transmission?

Select	Answer
A	KL7CC slash W3
B	KL7CC stroke W3
C	KL7CC slant W3
D	All these choices are correct

10. - T2A12

What should you do before calling CQ?

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

11. - T2B11

Which Q signal indicates that you are changing frequency?

Select	Answer
A	QRU
B	QRZ
C	QSY
D	QSL

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

13. - T3A06

What is the meaning of the term “picket fencing”?

Select	Answer
A	Alternating transmissions during a net operation
B	Local vs long-distance communications
C	Rapid flutter on mobile signals due to multipath propagation
D	A type of ground system used with vertical antennas

14. - T3B10

What frequency range is referred to as HF?

Select	Answer
A	30 to 300 MHz
B	3 to 30 MHz
C	300 to 3000 MHz
D	300 to 3000 kHz

15. - T3C06

What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Select	Answer
A	Tropospheric ducting
B	D region refraction
C	Faraday rotation
D	F2 region refraction

16. - T4A06

What signals are used in a computer-radio interface for digital mode operation?

Select	Answer
A	Antenna and RF power
B	Receive audio, transmit audio, and transmitter keying
C	NMEA GPS location and DC power
D	Receive and transmit mode, status, and location

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	500 Hz
C	5000 Hz
D	2400 Hz

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Siemens
B	Ohms
C	Coulombs
D	Mhos

19. - T5B07

Which is equal to 3.525 MHz?

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

20. - T5C05

What is the unit of impedance?

Select	Answer
A	The coulomb
B	The ohm
C	The volt
D	The ampere

21. - T5D01

What formula is used to calculate current in a circuit?

Select	Answer
A	I = E  R
B	I = E / R
C	I = E + R
D	I = E - R

22. - T6A10

Which of the following battery chemistries is rechargeable?

Select	Answer
A	Lithium-ion
B	Lead-acid
C	All these choices are correct
D	Nickel-metal hydride

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Resistor
B	Reactor
C	Transistor
D	Transformer

24. - T6C07

What is component 8 in figure T-2?

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

25. - T6D08

Which of the following is combined with an inductor to make a resonant circuit?

Select	Answer
A	Capacitor
B	Potentiometer
C	Zener diode
D	Resistor

26. - T7A10

What device increases the transmitted output power from a transceiver?

Select	Answer
A	A voltage divider
B	All these choices are correct
C	An RF power amplifier
D	An impedance network

27. - T7B11

What is a symptom of RF feedback in a transmitter or transceiver?

Select	Answer
A	Reports of garbled, distorted, or unintelligible voice transmissions
B	Frequent blowing of power supply fuses
C	The transmitter will not stay on the desired frequency
D	Excessive SWR at the antenna connection

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. - T7D02

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

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

30. - T8A12

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

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

31. - T8B03

Which of the following are provided by satellite tracking programs?

Select	Answer
A	Maps showing the real-time position of the satellite track over Earth
B	All these choices are correct
C	The apparent frequency of the satellite transmission, including effects of Doppler shift
D	The time, azimuth, and elevation of the start, maximum altitude, and end of a pass

32. - T8C03

What operating activity involves contacting as many stations as possible during a specified period?

Select	Answer
A	Net operations
B	Contesting
C	Public service events
D	Simulated emergency exercises

33. - T8D05

Which of the following is an application of APRS?

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

34. - T9A12

What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

Select	Answer
A	It has more gain than a 1/4-wavelength antenna
B	It radiates at a very high angle
C	It has 10 times the power gain of a 1/4 wavelength whip
D	It eliminates distortion caused by reflected signals

35. - T9B01

What is a benefit of low SWR?

Select	Answer
A	Reduced television interference
B	Reduced signal loss
C	Less antenna wear
D	All these choices are correct

Figure T-2