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. - T0A02

What health hazard is presented by electrical current flowing through the body?

Select	Answer
A	It may disrupt the electrical functions of cells
B	All these choices are correct
C	It may cause injury by heating tissue
D	It may cause involuntary muscle contractions

2. - T0B07

Which of the following is an important safety rule to remember when using a crank-up tower?

Select	Answer
A	All these choices are correct
B	This type of tower must never be grounded
C	This type of tower must never be painted
D	This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed

3. - T0C03

How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?

Select	Answer
A	It increases by a factor of 3
B	It increases by a factor of 2
C	There is no adjustment allowed for lower duty cycle
D	It decreases by 50 percent

4. - T1A09

Who selects a Frequency Coordinator?

Select	Answer
A	The FCC Office of Spectrum Management and Coordination Policy
B	The local chapter of the Office of National Council of Independent Frequency Coordinators
C	FCC Regional Field Office
D	Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations

5. - T1B12

Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

Select	Answer
A	1500 watts
B	50 watts
C	100 watts
D	500 watts

6. - T1C01

For which license classes are new licenses currently available from the FCC?

Select	Answer
A	Technician, Technician Plus, General, Amateur Extra
B	Novice, Technician Plus, General, Advanced
C	Technician, General, Amateur Extra
D	Novice, Technician, General, Amateur Extra

7. - T1D08

In which of the following circumstances may the control operator of an amateur station receive compensation for operating that station?

Select	Answer
A	When the communication is incidental to classroom instruction at an educational institution
B	All these choices are correct
C	When the communication is made to obtain emergency information for a local broadcast station
D	When the communication is related to the sale of amateur equipment by the control operator's employer

8. - T1E03

Who must designate the station control operator?

Select	Answer
A	Any licensed operator
B	The station licensee
C	The FCC
D	The frequency coordinator

9. - T1F03

When are you required to transmit your assigned call sign?

Select	Answer
A	At least every 10 minutes during and at the end of a communication
B	At least once during each transmission
C	At the beginning of each contact, and every 10 minutes thereafter
D	At least every 15 minutes during and at the end of a communication

10. - T2A07

What is meant by "repeater offset”?

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

11. - T2B08

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

Select	Answer
A	Use subaudible tones so both stations can share the frequency
B	Interference is inevitable, so no action is required
C	Both stations should choose another frequency to avoid conflict
D	The stations should negotiate continued use of the frequency

12. - T2C02

Which of the following are typical duties of a Net Control Station?

Select	Answer
A	Choose the regular net meeting time and frequency
B	Ensure that all stations checking into the net are properly licensed for operation on the net frequency
C	Call the net to order and direct communications between stations checking in
D	All these choices are correct

13. - T3A04

What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

Select	Answer
A	Signals have an echo effect
B	Nothing significant will happen
C	The modulation sidebands might become inverted
D	Received signal strength is reduced

14. - T3B06

What is the formula for converting frequency to approximate wavelength in meters?

Select	Answer
A	Wavelength in meters equals 300 divided by frequency in megahertz
B	Wavelength in meters equals frequency in megahertz divided by 300
C	Wavelength in meters equals frequency in hertz divided by 300
D	Wavelength in meters equals frequency in hertz multiplied by 300

15. - T3C01

Why are simplex UHF signals rarely heard beyond their radio horizon?

Select	Answer
A	UHF signals are usually not propagated by the ionosphere
B	They are too weak to go very far
C	FCC regulations prohibit them from going more than 50 miles
D	UHF signals are absorbed by the ionospheric D region

16. - T4A01

Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

Select	Answer
A	24.0 volts at 4 amperes
B	13.8 volts at 4 amperes
C	24.0 volts at 12 amperes
D	13.8 volts at 12 amperes

17. - T4B09

How is a specific group of stations selected on a digital voice transceiver?

Select	Answer
A	By enabling the group’s CTCSS tone
B	By retrieving the frequencies from transceiver memory
C	By activating automatic identification
D	By entering the group’s identification code

18. - T5A11

What type of current flow is opposed by resistance?

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

19. - T5B09

Which decibel value most closely represents a power increase from 5 watts to 10 watts?

Select	Answer
A	5 dB
B	10 dB
C	3 dB
D	2 dB

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	mh
B	MHz
C	MH
D	Mhz

21. - T5D07

What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

Select	Answer
A	1.5 amperes
B	200 amperes
C	9600 amperes
D	0.667 amperes

22. - T6A02

What type of component is often used as an adjustable volume control?

Select	Answer
A	Potentiometer
B	Power resistor
C	Fixed resistor
D	Transformer

23. - T6B03

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

Select	Answer
A	Thermistor
B	Varistor
C	Potentiometer
D	Transistor

24. - T6C09

What is component 4 in figure T-2?

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

25. - T6D10

What is the function of component 2 in figure T-1?

Select	Answer
A	Control the flow of current
B	Give off light when current flows through it
C	Supply electrical energy
D	Convert electrical energy into radio waves

26. - T7A07

What is the function of a transceiver’s PTT input?

Select	Answer
A	Switches transceiver from receive to transmit when grounded
B	Provides a transmit tuning tone when grounded
C	Input for a key used to send CW
D	Input for a preamplifier tuning tone

27. - T7B10

What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

Select	Answer
A	All these choices are correct
B	Your batteries are running low
C	Your transmitter is slightly off frequency
D	You are in a bad location

28. - T7C09

Which of the following causes failure of coaxial cables?

Select	Answer
A	Solder flux contamination
B	Moisture contamination
C	Operation at 100% duty cycle for an extended period
D	Rapid fluctuation in transmitter output power

29. - T7D09

What is the characteristic appearance of a cold tin-lead solder joint?

Select	Answer
A	Dark black spots
B	A rough or lumpy surface
C	Excessive solder
D	A bright or shiny surface

30. - T8A12

Which of the following is a disadvantage of FM compared with single sideband?

Select	Answer
A	All these choices are correct
B	Only one signal can be received at a time
C	Voice quality is poorer
D	FM signals are harder to tune

31. - T8B09

What causes spin fading of satellite signals?

Select	Answer
A	Circular polarized noise interference radiated from the sun
B	Rotation of the satellite and its antennas
C	Interfering signals within the satellite uplink band
D	Doppler shift of the received signal

32. - T8C05

What is a grid locator?

Select	Answer
A	A letter-number designator assigned to an azimuth and elevation
B	An instrument for radio direction finding
C	A letter-number designator assigned to a geographic location
D	An instrument for neutralizing a final amplifier

33. - T8D07

Which of the following describes DMR?

Select	Answer
A	A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
B	An automatic position tracking mode for FM mobiles communicating through repeaters
C	A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction
D	An automatic computer logging technique for hands-off logging when communicating while operating a vehicle

34. - T9A11

What is antenna gain?

Select	Answer
A	The increase in impedance on receive or transmit compared to a reference antenna
B	The additional power that is added to the transmitter power
C	The additional power that is required in the antenna when transmitting on a higher frequency
D	The increase in signal strength in a specified direction compared to a reference antenna

35. - T9B05

What happens as the frequency of a signal in coaxial cable is increased?

Select	Answer
A	The characteristic impedance increases
B	The loss increases
C	The characteristic impedance decreases
D	The loss decreases

Figure T-2

Figure T-1