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. - T0A06

What is a good way to guard against electrical shock at your station?

Select	Answer
A	Install mechanical interlocks in high-voltage circuits
B	Connect all AC powered station equipment to a common safety ground
C	Use three-wire cords and plugs for all AC powered equipment
D	All these choices are correct

2. - T0B06

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

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

3. - T0C07

What hazard is created by touching an antenna during a transmission?

Select	Answer
A	Radiation poisoning
B	All these choices are correct
C	RF burn to skin
D	Electrocution

4. - T1A03

What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

Select	Answer
A	It is encouraged
B	It is required when transmitting emergency messages
C	All these choices are correct
D	It is required when in contact with foreign stations

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

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

7. - T1D07

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

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

8. - T1E08

Which of the following is an example of automatic control?

Select	Answer
A	Controlling a station over the internet
B	Using a computer or other device to identify automatically
C	Using a computer or other device to send CW automatically
D	Repeater operation

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

10. - T2A02

What is the national calling frequency for FM simplex operations in the 2 meter band?

Select	Answer
A	146.520 MHz
B	432.100 MHz
C	446.000 MHz
D	145.000 MHz

11. - T2B12

What is the purpose of the color code used on DMR repeater systems?

Select	Answer
A	Defines the frequency pair to use
B	Must match the repeater color code for access
C	Identifies the codec used
D	Defines the minimum signal level required for access

12. - T2C01

When do FCC rules NOT apply to the operation of an amateur station?

Select	Answer
A	FCC rules always apply
B	When operating under special FEMA rules
C	When operating under special ARES rules
D	When operating a RACES station

13. - T3A02

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

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

14. - T3B03

What are the two components of a radio wave?

Select	Answer
A	Impedance and reactance
B	Ionizing and non-ionizing radiation
C	Voltage and current
D	Electric and magnetic fields

15. - T3C09

What is generally the best time for long-distance 10 meter band propagation via the F region?

Select	Answer
A	From dawn to shortly after sunset during periods of low sunspot activity
B	From dawn to shortly after sunset during periods of high sunspot activity
C	From shortly after sunset to dawn during periods of low sunspot activity
D	From shortly after sunset to dawn during periods of high sunspot activity

16. - T4A06

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

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

17. - T4B01

What is the effect of excessive microphone gain on SSB transmissions?

Select	Answer
A	Distorted transmitted audio
B	Frequency instability
C	Increased SWR
D	All these choices are correct

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Farad
B	Henry
C	Hertz
D	Tesla

19. - T5B12

Which is equal to 28400 kHz?

Select	Answer
A	28.400 MHz
B	28.400 kHz
C	2.800 MHz
D	284.00 MHz

20. - T5C06

What does the abbreviation “RF” mean?

Select	Answer
A	Radio frequency signals of all types
B	The resonant frequency of a tuned circuit
C	Reflective force in antenna transmission lines
D	The real frequency transmitted as opposed to the apparent frequency

21. - T5D03

What formula is used to calculate resistance in a circuit?

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

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Capacitor
B	Varistor
C	Diode
D	Inductor

23. - T6B03

Which of these components can be used as an electronic switch?

Select	Answer
A	Varistor
B	Transistor
C	Thermistor
D	Potentiometer

24. - T6C09

What is component 4 in figure T-2?

Select	Answer
A	Double-pole switch
B	Transformer
C	Variable inductor
D	Potentiometer

25. - T6D04

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

Select	Answer
A	Potentiometer
B	Relay
C	Transistor
D	Meter

26. - T7A04

Which term describes the ability of a receiver to discriminate between multiple signals?

Select	Answer
A	Harmonic distortion
B	Selectivity
C	Sensitivity
D	Discrimination ratio

27. - T7B03

Which of the following can cause radio frequency interference?

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

28. - T7C06

What does an SWR reading of 4:1 indicate?

Select	Answer
A	Impedance mismatch
B	Gain of +4 dB
C	Loss of -4 dB
D	Good impedance match

29. - T7D07

Which of the following measurements are made using a multimeter?

Select	Answer
A	Voltage and resistance
B	All these choices are correct
C	Signal strength and noise
D	Impedance and reactance

30. - T8A11

What is the approximate bandwidth required to transmit a CW signal?

Select	Answer
A	150 Hz
B	1000 Hz
C	15 kHz
D	2.4 kHz

31. - T8B01

What telemetry information is typically transmitted by satellite beacons?

Select	Answer
A	Health and status of the satellite
B	The signal strength of received signals
C	Time of day accurate to plus or minus 1/10 second
D	All these choices are correct

32. - T8C06

How is over the air access to IRLP nodes accomplished?

Select	Answer
A	By entering the proper internet password
B	By using DTMF signals
C	By using CTCSS tone codes
D	By obtaining a password that is sent via voice to the node

33. - T8D02

What is a “talkgroup” on a DMR repeater?

Select	Answer
A	A net that meets at a specified time
B	A group of operators sharing common interests
C	A way for groups of users to share a channel at different times without hearing other users on the channel
D	A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together

34. - T9A06

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

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

35. - T9B09

What can cause erratic changes in SWR?

Select	Answer
A	Local thunderstorm
B	Overload from a strong local station
C	Over-modulation
D	Loose connection in the antenna or feed line

Figure T-2