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

2. - T0B05

What is the purpose of a safety wire through a turnbuckle used to tension guy lines?

Select	Answer
A	Secure the guy line if the turnbuckle breaks
B	Provide a ground path for lightning strikes
C	Provide an ability to measure for proper tensioning
D	Prevent loosening of the turnbuckle from vibration

3. - T0C02

At which of the following frequencies does maximum permissible exposure have the lowest value?

Select	Answer
A	3.5 MHz
B	440 MHz
C	1296 MHz
D	50 MHz

4. - T1A09

Who selects a Frequency Coordinator?

Select	Answer
A	The local chapter of the Office of National Council of Independent Frequency Coordinators
B	FCC Regional Field Office
C	The FCC Office of Spectrum Management and Coordination Policy
D	Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations

5. - T1B11

What is the maximum peak envelope power output for Technician class operators in their HF band segments?

Select	Answer
A	100 watts
B	50 watts
C	200 watts
D	10 watts

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. - T1D02

Under which of the following circumstances are one-way transmissions by an amateur station prohibited?

Select	Answer
A	International Morse Code Practice
B	Broadcasting
C	In all circumstances
D	Telecommand or transmissions of telemetry

8. - T1E01

When may an amateur station transmit without a control operator?

Select	Answer
A	When the station licensee is away and another licensed amateur is using the station
B	When using automatic control, such as in the case of a repeater
C	When the transmitting station is an auxiliary station
D	Never

9. - T1F07

Which of the following restrictions apply when a non-licensed person is allowed to speak to a foreign station using a station under the control of a licensed amateur operator?

Select	Answer
A	The licensed control operator must do the station identification
B	All these choices are correct
C	The foreign station must be in a country with which the U.S. has a third party agreement
D	The person must be a U.S. citizen

10. - T2A11

What term describes an amateur station that is transmitting and receiving on the same frequency?

Select	Answer
A	Multiplex
B	Diplex
C	Simplex
D	Full duplex

11. - T2B07

How can you join a digital repeater’s “talkgroup”?

Select	Answer
A	Register your radio with the local FCC office
B	Join the repeater owner’s club
C	Program your radio with the group’s ID or code
D	Sign your call after the courtesy tone

12. - T2C11

What is meant by “check” in a radiogram header?

Select	Answer
A	The number of words or word equivalents in the text portion of the message
B	A box on the message form that indicates that the message was received and/or relayed
C	A list of stations that have relayed the message
D	The call sign of the originating station

13. - T3A08

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

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

14. - T3B02

What property of a radio wave defines its polarization?

Select	Answer
A	The ratio of the velocity to the wavelength
B	The orientation of the magnetic field
C	The ratio of the energy in the magnetic field to the energy in the electric field
D	The orientation of the electric field

15. - T3C08

What causes tropospheric ducting?

Select	Answer
A	Updrafts from hurricanes and tornadoes
B	Discharges of lightning during electrical storms
C	Temperature inversions in the atmosphere
D	Sunspots and solar flares

16. - T4A04

How are the transceiver audio input and output connected in a station configured to operate using FT8?

Select	Answer
A	To a computer connected to the FT8converter.com website
B	To an FT8 conversion unit, a keyboard, and a computer monitor
C	To a computer running a terminal program and connected to a terminal node controller unit
D	To the audio input and output of a computer running WSJT-X software

17. - T4B11

Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

Select	Answer
A	Your output power
B	Your call sign
C	All these choices are correct
D	The codec type being used

18. - T5A12

What describes the number of times per second that an alternating current makes a complete cycle?

Select	Answer
A	Pulse rate
B	Frequency
C	Wavelength
D	Speed

19. - T5B05

Which is equal to 500 milliwatts?

Select	Answer
A	50 watts
B	0.02 watts
C	5 watts
D	0.5 watts

20. - T5C02

What is the unit of capacitance?

Select	Answer
A	The volt
B	The ohm
C	The henry
D	The farad

21. - T5D05

What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

Select	Answer
A	13.5 ohms
B	18 ohms
C	8 ohms
D	0.125 ohms

22. - T6A01

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

Select	Answer
A	Transformer
B	Inductor
C	Resistor
D	Inverter

23. - T6B02

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

Select	Answer
A	Fuse
B	Resistor
C	Diode
D	Driven element

24. - T6C07

What is component 8 in figure T-2?

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

25. - T6D10

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

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

26. - T7A10

What device increases the transmitted output power from a transceiver?

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

27. - T7B09

What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

Select	Answer
A	Add a preamplifier to the TV antenna input
B	Add a low-pass filter to the TV antenna input
C	Add a high-pass filter to the TV antenna input
D	Be sure all TV feed line coaxial connectors are installed properly

28. - T7C05

Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

Select	Answer
A	Because power supplies cannot supply enough current at high SWR
B	To protect the output amplifier transistors
C	To lower the SWR on the transmission line
D	To comply with FCC rules on spectral purity

29. - T7D01

Which instrument would you use to measure electric potential?

Select	Answer
A	An ohmmeter
B	An ammeter
C	A wavemeter
D	A voltmeter

30. - T8A06

Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

Select	Answer
A	Inverted sideband
B	Suppressed sideband
C	Lower sideband
D	Upper sideband

31. - T8B07

What is Doppler shift in reference to satellite communications?

Select	Answer
A	An observed change in signal frequency caused by relative motion between the satellite and Earth station
B	A change in the satellite orbit
C	A special digital communications mode for some satellites
D	A mode where the satellite receives signals on one band and transmits on another

32. - T8C01

Which of the following methods is used to locate sources of noise interference or jamming?

Select	Answer
A	Echolocation
B	Phase locking
C	Doppler radar
D	Radio direction finding

33. - T8D08

Which of the following is included in packet radio transmissions?

Select	Answer
A	Automatic repeat request in case of error
B	A header that contains the call sign of the station to which the information is being sent
C	A check sum that permits error detection
D	All these choices are correct

34. - T9A12

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

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

35. - T9B01

What is a benefit of low SWR?

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

Figure T-2

Figure T-1