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

2. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	The 60 Hz radiations from the feed line may increase the SWR
B	All these choices are correct
C	The antenna will not work properly because of induced voltages
D	The antenna could contact high-voltage power lines

3. - T0C10

Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

Select	Answer
A	It takes into account the thermal effects of the final amplifier
B	It takes into account the antenna feed line loss
C	It affects the average exposure to radiation
D	It affects the peak exposure to radiation

4. - T1A01

Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

Select	Answer
A	Providing communications for international non-profit organizations
B	Advancing skills in the technical and communication phases of the radio art
C	Providing personal radio communications for as many citizens as possible
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 Technician class or higher license who has applied for and received approval from NASA
B	Any amateur holding a General class or higher license who has applied for and received approval from NASA
C	Any amateur holding a Technician class or higher license
D	Any amateur holding a General class or higher license

6. - T1C09

What is the grace period for renewal if an amateur license expires?

Select	Answer
A	Five years
B	Ten years
C	Three years
D	Two years

7. - T1D09

When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

Select	Answer
A	Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
B	Never
C	When broadcasting communications to or from the space shuttle
D	When such communications are directly related to the immediate safety of human life or protection of property

8. - T1E08

Which of the following is an example of automatic control?

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

9. - T1F02

How often must you identify with your FCC-assigned call sign when using tactical call signs such as “Race Headquarters”?

Select	Answer
A	At the end of every transmission
B	Once during every hour
C	Never, the tactical call is sufficient
D	At the end of each communication and every ten minutes during a communication

10. - T2A06

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

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

11. - T2B04

Which of the following could be the reason you are unable to access a repeater whose output you can hear?

Select	Answer
A	You are using the wrong DCS code
B	Improper transceiver offset
C	All these choices are correct
D	You are using the wrong CTCSS tone

12. - T2C08

Which of the following is a characteristic of good traffic handling?

Select	Answer
A	All these choices are correct
B	Ensuring that any newsworthy messages are relayed to the news media
C	Making decisions as to whether messages are worthy of relay or delivery
D	Passing messages exactly as received

13. - T3A09

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

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

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C08

What causes tropospheric ducting?

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

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. - T4B05

What does the scanning function of an FM transceiver do?

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

18. - T5A11

What type of current flow is opposed by resistance?

Select	Answer
A	RF current
B	All these choices are correct
C	Direct current
D	Alternating current

19. - T5B12

Which is equal to 28400 kHz?

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

20. - T5C08

What is the formula used to calculate electrical power (P) in a DC circuit?

Select	Answer
A	P = I + E
B	P = I  E
C	P = E / I
D	P = E – I

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. - T6A01

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

Select	Answer
A	Inductor
B	Resistor
C	Inverter
D	Transformer

23. - T6B02

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

Select	Answer
A	Resistor
B	Diode
C	Fuse
D	Driven element

24. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Resistor
B	Connector
C	Transistor
D	Battery

25. - T6D09

What is the name of a device that combines several semiconductors and other components into one package?

Select	Answer
A	Multi-pole relay
B	Integrated circuit
C	Transformer
D	Transducer

26. - T7A01

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

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

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	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
B	All these choices are correct
C	Immediately turn off your transmitter and contact the nearest FCC office for assistance
D	Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated

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	Zero
C	50:50
D	Full Scale

29. - T7D06

Which of the following can damage a multimeter?

Select	Answer
A	Attempting to measure resistance using the voltage setting
B	Failing to connect one of the probes to ground
C	Not allowing it to warm up properly
D	Attempting to measure voltage when using the resistance setting

30. - T8A02

What type of modulation is commonly used for VHF packet radio transmissions?

Select	Answer
A	AM
B	FM or PM
C	SSB
D	PSK

31. - T8B10

What is a LEO satellite?

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

32. - T8C03

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

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

33. - T8D09

What is CW?

Select	Answer
A	A technique for coil winding
B	A digital mode used primarily on 2 meter FM
C	Another name for a Morse code transmission
D	A type of electromagnetic propagation

34. - T9A07

What is a disadvantage of using a handheld VHF transceiver with a flexible antenna inside a vehicle?

Select	Answer
A	The SWR might decrease, decreasing the signal strength
B	Signal strength is reduced due to the shielding effect of the vehicle
C	All these choices are correct
D	The bandwidth of the antenna will decrease, increasing SWR

35. - T9B06

Which of the following RF connector types is most suitable for frequencies above 400 MHz?

Select	Answer
A	DB-25
B	UHF (PL-259/SO-239)
C	Type N
D	RS-213

Figure T-1