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

2. - T0B04

Which of the following is an important safety precaution to observe when putting up an antenna tower?

Select	Answer
A	Insulate the base of the tower to avoid lightning strikes
B	Look for and stay clear of any overhead electrical wires
C	Wear a ground strap connected to your wrist at all times
D	All these choices are correct

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 affects the peak exposure to radiation
C	It takes into account the antenna feed line loss
D	It affects the average exposure to radiation

4. - T1A02

Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

Select	Answer
A	FEMA
B	Homeland Security
C	All these choices are correct
D	The FCC

5. - T1B07

Which of the following VHF/UHF band segments are limited to CW only?

Select	Answer
A	All these choices are correct
B	50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz
C	902.0 MHz to 902.1 MHz
D	219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz

6. - T1C10

How soon after passing the examination for your first amateur radio license may you transmit on the amateur radio bands?

Select	Answer
A	As soon as you receive your license in the mail from the FCC
B	As soon as your operator/station license grant appears in the FCC’s license database
C	As soon as your operator/station license grant appears on the ARRL website
D	Immediately on receiving your Certificate of Successful Completion of Examination (CSCE)

7. - T1D02

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

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

8. - T1E01

When may an amateur station transmit without a control operator?

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

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

10. - T2A07

What is meant by "repeater offset”?

Select	Answer
A	The repeater station identification is done on a separate frequency
B	The number of simultaneous transmit frequencies used by a repeater
C	The difference between a repeater’s transmit and receive frequencies
D	The repeater has a time delay to prevent interference

11. - T2B05

What would cause your FM transmission audio to be distorted on voice peaks?

Select	Answer
A	Your transmit power is too high
B	You are talking too loudly
C	You need to talk louder
D	Your repeater offset is inverted

12. - T2C05

What does the term “traffic” refer to in net operation?

Select	Answer
A	Requests to activate the net by a served agency
B	The number of stations checking in and out of a net
C	Messages exchanged by net stations
D	Operation by mobile or portable stations

13. - T3A11

Which region of the atmosphere can refract or bend HF and VHF radio waves?

Select	Answer
A	The stratosphere
B	The mesosphere
C	The ionosphere
D	The troposphere

14. - T3B11

What is the approximate velocity of a radio wave in free space?

Select	Answer
A	150,000 meters per second
B	300,000,000 meters per second
C	300,000,000 miles per hour
D	150,000 miles per hour

15. - T3C03

What is a characteristic of VHF signals received via auroral backscatter?

Select	Answer
A	They are distorted and signal strength varies considerably
B	They are often received from 10,000 miles or more
C	They occur only during winter nighttime hours
D	They are generally strongest when your antenna is aimed west

16. - T4A06

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

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

17. - T4B01

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

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

18. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Volts
B	Watts
C	Amperes
D	Ohms

19. - T5B04

Which is equal to one microvolt?

Select	Answer
A	One one-thousandth of a volt
B	One one-millionth of a volt
C	One thousand kilovolts
D	One million volts

20. - T5C02

What is the unit of capacitance?

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

21. - T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

Select	Answer
A	1.5 volts
B	1 volt
C	0.25 volts
D	2.5 volts

22. - T6A01

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

Select	Answer
A	Transformer
B	Inverter
C	Resistor
D	Inductor

23. - T6B05

What type of transistor has a gate, drain, and source?

Select	Answer
A	Varistor
B	Field-effect
C	Bipolar junction
D	Tesla-effect

24. - T6C06

What is component 6 in figure T-2?

Select	Answer
A	Transistor
B	Resistor
C	Capacitor
D	Regulator IC

25. - T6D11

Which of the following is a resonant or tuned circuit?

Select	Answer
A	A linear voltage regulator
B	A circuit designed to provide high-fidelity audio
C	An inductor and a capacitor in series or parallel
D	A resistor circuit used for reducing standing wave ratio

26. - T7A04

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

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

27. - T7B04

Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

Select	Answer
A	Ferrite choke
B	Preamplifier
C	Band-pass filter
D	Low-pass filter

28. - T7C06

What does an SWR reading of 4:1 indicate?

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

29. - T7D02

How is a voltmeter connected to a component to measure applied voltage?

Select	Answer
A	In parallel
B	In quadrature
C	In phase
D	In series

30. - T8A10

What is the approximate bandwidth of AM fast-scan TV transmissions?

Select	Answer
A	About 1 MHz
B	About 6 MHz
C	About 3 MHz
D	More than 10 MHz

31. - T8B05

What is a satellite beacon?

Select	Answer
A	A transmission from a satellite that contains status information
B	A reflective surface on the satellite
C	An indicator light that shows where to point your antenna
D	The primary transmit antenna on the satellite

32. - T8C03

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

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

33. - T8D04

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

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

34. - T9A03

Which of the following describes a simple dipole oriented parallel to Earth's surface?

Select	Answer
A	A ground-wave antenna
B	A horizontally polarized antenna
C	A travelling-wave antenna
D	A vertically polarized antenna

35. - T9B09

What can cause erratic changes in SWR?

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

Figure T-2