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. - T0A05

Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

Select	Answer
A	The power supply ripple would greatly increase
B	All these choices are correct
C	Excessive current could cause a fire
D	The larger fuse would be likely to blow because it is rated for higher current

2. - T0B05

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

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

3. - T0C13

Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

Select	Answer
A	The station licensee
B	The FCC
C	Anyone who is near an antenna
D	The local zoning board

4. - T1A06

What is the FCC Part 97 definition of a beacon?

Select	Answer
A	An amateur station transmitting communications for the purposes of observing propagation or related experimental activities
B	A government transmitter marking the amateur radio band edges
C	A bulletin sent by the FCC to announce a national emergency
D	A continuous transmission of weather information authorized in the amateur bands by the National Weather Service

5. - T1B02

Which amateurs may contact the International Space Station (ISS) on VHF bands?

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

6. - T1C08

What is the normal term for an FCC-issued amateur radio license?

Select	Answer
A	Eight years
B	Life
C	Ten years
D	Five years

7. - T1D03

When is it permissible to transmit messages encoded to obscure their meaning?

Select	Answer
A	Never
B	Only when transmitting certain approved digital codes
C	Only when transmitting control commands to space stations or radio control craft
D	Only during contests

8. - T1E10

Which of the following is an example of remote control as defined in Part 97?

Select	Answer
A	Controlling a model aircraft, boat, or car by amateur radio
B	Operating the station over the internet
C	Repeater operation
D	All these choices are correct

9. - T1F09

What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

Select	Answer
A	Beacon station
B	Earth station
C	Repeater station
D	Message forwarding station

10. - T2A06

Which of the following is required when making on-the-air test transmissions?

Select	Answer
A	Identify the transmitting station
B	Conduct tests only between 10 p.m. and 6 a.m. local time
C	All these choices are correct
D	Notify the FCC of the transmissions

11. - T2B03

Which of the following describes a linked repeater network?

Select	Answer
A	A system of repeaters linked by APRS
B	Multiple repeaters with the same control operator
C	A single repeater with more than one receiver
D	A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network

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 provides licensing courses for those interested in obtaining an amateur license to use during emergencies
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 certifies amateur operators for membership in the Radio Amateur Civil Emergency Service

13. - T3A09

Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

Select	Answer
A	Both the transmitting and receiving antennas must be of the same polarization
B	FM voice is unusable
C	Digital modes are unusable
D	Either vertically or horizontally polarized antennas may be used for transmission or reception

14. - T3B07

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

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

15. - T3C02

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

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

16. - T4A09

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

Select	Answer
A	Divide the battery ampere-hour rating by the average current draw of the equipment
B	Multiply the square of the current rating of the battery by the input resistance 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. - T4B05

What does the scanning function of an FM transceiver do?

Select	Answer
A	Checks for messages left on a digital bulletin board
B	Prevents interference to nearby repeaters
C	Checks incoming signal deviation
D	Tunes through a range of frequencies to check for activity

18. - T5A12

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

Select	Answer
A	Wavelength
B	Pulse rate
C	Speed
D	Frequency

19. - T5B08

Which is equal to 1,000,000 picofarads?

Select	Answer
A	1,000,000,000 microfarads
B	0.001 microfarads
C	1 microfarad
D	1000 microfarads

20. - T5C02

What is the unit of capacitance?

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

21. - T5D08

What is the current through a 100-ohm resistor connected across 200 volts?

Select	Answer
A	20,000 amperes
B	2 amperes
C	0.5 amperes
D	100 amperes

22. - T6A01

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

Select	Answer
A	Transformer
B	Resistor
C	Inductor
D	Inverter

23. - T6B11

What is the term that describes a device's ability to amplify a signal?

Select	Answer
A	Forward resistance
B	Forward voltage drop
C	Gain
D	On resistance

24. - T6C04

What is component 3 in figure T-1?

Select	Answer
A	Lamp
B	Transistor
C	Resistor
D	Ground symbol

25. - T6D06

What component changes 120 V AC power to a lower AC voltage for other uses?

Select	Answer
A	Transistor
B	Variable capacitor
C	Transformer
D	Diode

26. - T7A03

Which of the following is used to convert a signal from one frequency to another?

Select	Answer
A	Phase splitter
B	Mixer
C	Amplifier
D	Inverter

27. - T7B07

Which of the following can reduce overload of a VHF transceiver by a nearby commercial FM station?

Select	Answer
A	Installing an RF preamplifier
B	Installing a band-reject filter
C	Installing bypass capacitors on the microphone cable
D	Using double-shielded coaxial cable

28. - T7C04

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

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

29. - T7D04

Which instrument is used to measure electric current?

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

30. - T8A07

What is a characteristic of single sideband (SSB) compared to FM?

Select	Answer
A	SSB signals are easier to tune in correctly
B	SSB signals are less susceptible to interference
C	All these choices are correct
D	SSB signals have narrower bandwidth

31. - T8B02

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

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

32. - T8C01

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

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

33. - T8D10

Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

Select	Answer
A	Weak signal propagation beacons
B	All these choices are correct
C	Earth-Moon-Earth
D	Meteor scatter

34. - T9A08

What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

Select	Answer
A	50
B	19
C	112
D	12

35. - T9B12

What is standing wave ratio (SWR)?

Select	Answer
A	The ratio of amplifier power output to input
B	The transmitter efficiency ratio
C	A measure of how well a load is matched to a transmission line
D	An indication of the quality of your station’s ground connection

Figure T-1