US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Anonymous User

US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - T0A10

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

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

2. - T0B07

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

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

3. - T0C12

How does RF radiation differ from ionizing radiation (radioactivity)?

Select	Answer
A	RF radiation can only be detected with an RF dosimeter
B	RF radiation is limited in range to a few feet
C	RF radiation is perfectly safe
D	RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA

4. - T1A07

What is the FCC Part 97 definition of a space station?

Select	Answer
A	An amateur station located more than 50 km above Earth's surface
B	An amateur station using amateur radio satellites for relay of signals
C	A manned satellite orbiting Earth
D	Any satellite orbiting Earth

5. - T1B10

Where may SSB phone be used in amateur bands above 50 MHz?

Select	Answer
A	In at least some segment of all these bands
B	On any band if the power is limited to 25 watts
C	Only on repeaters
D	Only in sub-bands allocated to General class or higher licensees

6. - T1C05

Which of the following is a valid Technician class call sign format?

Select	Answer
A	All these choices are correct
B	W1XX
C	KF1XXX
D	KA1X

7. - T1D01

With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

Select	Answer
A	Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications
B	Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications
C	Any country banned from making such communications by the American Radio Relay League (ARRL)
D	Any country banned from such communications by the International Amateur Radio Union (IARU)

8. - T1E08

Which of the following is an example of automatic control?

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

9. - T1F09

What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

Select	Answer
A	Earth station
B	Repeater station
C	Beacon station
D	Message forwarding station

10. - T2A11

What term describes an amateur station that is transmitting and receiving on the same frequency?

Select	Answer
A	Simplex
B	Full duplex
C	Multiplex
D	Diplex

11. - T2B13

What is the purpose of a squelch function?

Select	Answer
A	Reduce interference from impulse noise
B	Eliminate parasitic oscillations in an RF amplifier
C	Mute the receiver audio when a signal is not present
D	Reduce a CW transmitter's key clicks

12. - T2C09

Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

Select	Answer
A	Yes, but only when part of a FEMA emergency plan
B	Yes, but only when part of a RACES emergency plan
C	No
D	Yes, but only in situations involving the immediate safety of human life or protection of property

13. - T3A08

What is a likely cause of irregular fading of signals propagated by the ionosphere?

Select	Answer
A	Random combining of signals arriving via different paths
B	Intermodulation distortion
C	Frequency shift due to Faraday rotation
D	Interference from thunderstorms

14. - T3B09

What frequency range is referred to as UHF?

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

15. - T3C02

What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

Select	Answer
A	HF accommodates wider bandwidth signals
B	There is less atmospheric interference (static) on HF
C	HF antennas are generally smaller
D	Long-distance ionospheric propagation is far more common on HF

16. - T4A06

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

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

17. - T4B12

What is the result of tuning an FM receiver above or below a signal’s frequency?

Select	Answer
A	Change in audio pitch
B	Generation of a heterodyne tone
C	Sideband inversion
D	Distortion of the signal’s audio

18. - T5A03

What is the name for the flow of electrons in an electric circuit?

Select	Answer
A	Voltage
B	Resistance
C	Capacitance
D	Current

19. - T5B06

Which is equal to 3000 milliamperes?

Select	Answer
A	3,000,000 amperes
B	3 amperes
C	0.3 amperes
D	0.003 amperes

20. - T5C08

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

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

21. - T5D05

What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

Select	Answer
A	0.125 ohms
B	18 ohms
C	13.5 ohms
D	8 ohms

22. - T6A02

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

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

23. - T6B09

What are the names for the electrodes of a diode?

Select	Answer
A	Source and drain
B	Gate and base
C	Plus and minus
D	Anode and cathode

24. - T6C01

What is the name of an electrical wiring diagram that uses standard component symbols?

Select	Answer
A	Flow chart
B	Schematic
C	Bill of materials
D	Connector pinout

25. - T6D11

Which of the following is a resonant or tuned circuit?

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

26. - T7A03

Which of the following is used to convert a signal from one frequency to another?

Select	Answer
A	Inverter
B	Amplifier
C	Mixer
D	Phase splitter

27. - T7B08

What should you do if something in a neighbor’s home is causing harmful interference to your amateur station?

Select	Answer
A	All these choices are correct
B	Make sure your station meets the standards of good amateur practice
C	Politely inform your neighbor that FCC rules prohibit the use of devices that cause interference
D	Work with your neighbor to identify the offending device

28. - T7C10

Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

Select	Answer
A	Ultraviolet resistant jackets prevent harmonic radiation
B	Ultraviolet light can increase losses in the cable’s jacket
C	Ultraviolet and RF signals can mix, causing interference
D	Ultraviolet light can damage the jacket and allow water to enter the cable

29. - T7D11

Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

Select	Answer
A	Ensure that the circuit is grounded
B	Ensure that the applied voltages are correct
C	Ensure that the circuit is not powered
D	Ensure that the circuit is operating at the correct frequency

30. - T8A12

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

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

31. - T8B07

What is Doppler shift in reference to satellite communications?

Select	Answer
A	A change in the satellite orbit
B	A special digital communications mode for some satellites
C	An observed change in signal frequency caused by relative motion between the satellite and Earth station
D	A mode where the satellite receives signals on one band and transmits on another

32. - T8C02

Which of these items would be useful for a hidden transmitter hunt?

Select	Answer
A	A calibrated noise bridge
B	Calibrated SWR meter
C	A directional antenna
D	All these choices are correct

33. - T8D06

What does the abbreviation "PSK" mean?

Select	Answer
A	Phase Shift Keying
B	Pulse Shift Keying
C	Packet Short Keying
D	Phased Slide Keying

34. - T9A11

What is antenna gain?

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

35. - T9B04

What is the major function of an antenna tuner (antenna coupler)?

Select	Answer
A	It matches the antenna system impedance to the transceiver's output impedance
B	It helps a receiver automatically tune in weak stations
C	It allows an antenna to be used on both transmit and receive
D	It automatically selects the proper antenna for the frequency band being used