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. - T0A10

What hazard is caused by charging or discharging a battery too quickly?

Select	Answer
A	Inverse memory effect
B	Half-wave rectification
C	Excess output ripple
D	Overheating or out-gassing

2. - T0B06

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

Select	Answer
A	Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
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	1/2 wavelength at the operating frequency

3. - T0C02

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

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

4. - T1A10

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

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

5. - T1B02

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

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

6. - T1C07

Which of the following can result in revocation of the station license or suspension of the operator license?

Select	Answer
A	Failure to provide and maintain a correct email address with the FCC
B	Failure to obtain FCC type acceptance prior to using a home-built transmitter
C	Failure to inform the FCC of any changes in the amateur station following performance of an RF safety environmental evaluation
D	Failure to have a copy of your license available at your station

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	Earth, repeater, or space stations
C	Repeater, auxiliary, or space stations
D	Beacon, repeater, or space stations

8. - T1E09

Which of the following are required for remote control operation?

Select	Answer
A	All these choices are correct
B	The control operator must indirectly manipulate the controls
C	The control operator must be at the control point
D	A control operator is required at all times

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	The person must be a U.S. citizen
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. - T2A03

What is a common repeater frequency offset in the 70 cm band?

Select	Answer
A	Plus or minus 600 kHz
B	Plus or minus 500 kHz
C	Plus or minus 1 MHz
D	Plus or minus 5 MHz

11. - T2B09

Why are simplex channels designated in the VHF/UHF band plans?

Select	Answer
A	For contest operation
B	So stations with simple transmitters can access the repeater without automated offset
C	So stations within range of each other can communicate without tying up a repeater
D	For working DX only

12. - T2C01

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

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

13. - T3A10

What effect does multi-path propagation have on data transmissions?

Select	Answer
A	Error rates are likely to increase
B	No significant changes will occur if the signals are transmitted using FM
C	Transmission rates must be decreased by a factor equal to the number of separate paths observed
D	Transmission rates must be increased by a factor equal to the number of separate paths observed

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C08

What causes tropospheric ducting?

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

16. - T4A02

Which of the following should be considered when selecting an accessory SWR meter?

Select	Answer
A	The distance that the meter will be located from the antenna
B	The types of modulation being used at the station
C	All these choices are correct
D	The frequency and power level at which the measurements will be made

17. - T4B11

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

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

18. - T5A02

Electrical power is measured in which of the following units?

Select	Answer
A	Watt-hours
B	Volts
C	Watts
D	Amperes

19. - T5B12

Which is equal to 28400 kHz?

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

20. - T5C12

What is impedance?

Select	Answer
A	The opposition to AC current flow
B	The power handling capability of a component
C	The Q or Quality Factor of a component
D	The inverse of resistance

21. - T5D13

In which type of circuit is DC current the same through all components?

Select	Answer
A	Branch
B	Resonant
C	Series
D	Parallel

22. - T6A09

What electrical component is used to protect other circuit components from current overloads?

Select	Answer
A	Fuse
B	Thyratron
C	All these choices are correct
D	Varactor

23. - T6B01

Which is true about forward voltage drop in a diode?

Select	Answer
A	It is lower in some diode types than in others
B	It indicates that the diode is defective
C	It is proportional to peak inverse voltage
D	It has no impact on the voltage delivered to the load

24. - T6C11

What is component 4 in figure T-3?

Select	Answer
A	Antenna
B	Dummy load
C	Ground
D	Transmitter

25. - T6D01

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Select	Answer
A	Amplifier
B	Reflector
C	Rectifier
D	Transformer

26. - T7A01

Which term describes the ability of a receiver to detect the presence of a signal?

Select	Answer
A	Linearity
B	Selectivity
C	Sensitivity
D	Total Harmonic Distortion

27. - T7B06

Which of the following actions should you take if a neighbor tells you that your station’s transmissions are interfering with their radio or TV reception?

Select	Answer
A	Immediately turn off your transmitter and contact the nearest FCC office for assistance
B	All these choices are correct
C	Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
D	Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel

28. - T7C01

What is the primary purpose of a dummy load?

Select	Answer
A	To improve the efficiency of an antenna
B	To improve the signal-to-noise ratio of a receiver
C	To prevent transmitting signals over the air when making tests
D	To prevent over-modulation of a transmitter

29. - T7D10

What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

Select	Answer
A	Steady full-scale reading
B	Increasing resistance with time
C	Alternating between open and short circuit
D	Decreasing resistance with time

30. - T8A06

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

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

31. - T8B10

What is a LEO satellite?

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

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. - T8D04

What type of transmission is indicated by the term "NTSC?"

Select	Answer
A	An analog fast-scan color TV signal
B	A Normal Transmission mode in Static Circuit
C	A frame compression scheme for TV signals
D	A special mode for satellite uplink

34. - T9A08

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

Select	Answer
A	12
B	112
C	19
D	50

35. - T9B08

Which of the following is a source of loss in coaxial feed line?

Select	Answer
A	All these choices are correct
B	Water intrusion into coaxial connectors
C	High SWR
D	Multiple connectors in the line

Figure T-3