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. - T0B11

Which of the following establishes grounding requirements for an amateur radio tower or antenna?

Select	Answer
A	FCC Part 97 rules
B	Local electrical codes
C	FAA tower lighting regulations
D	UL recommended practices

3. - T0C04

What factors affect the RF exposure of people near an amateur station antenna?

Select	Answer
A	Distance from the antenna to a person
B	Radiation pattern of the antenna
C	All these choices are correct
D	Frequency and power level of the RF field

4. - T1A06

What is the FCC Part 97 definition of a beacon?

Select	Answer
A	A continuous transmission of weather information authorized in the amateur bands by the National Weather Service
B	A government transmitter marking the amateur radio band edges
C	A bulletin sent by the FCC to announce a national emergency
D	An amateur station transmitting communications for the purposes of observing propagation or related experimental activities

5. - T1B01

Which of the following frequency ranges are available for phone operation by Technician licensees?

Select	Answer
A	28.500 MHz to 28.600 MHz
B	28.050 MHz to 28.150 MHz
C	28.100 MHz to 28.300 MHz
D	28.300 MHz to 28.500 MHz

6. - T1C02

Who may select a desired call sign under the vanity call sign rules?

Select	Answer
A	Only a licensed amateur who has been licensed continuously for more than 10 years
B	Any licensed amateur
C	Only a licensed amateur with a General or Amateur Extra Class license
D	Only a licensed amateur with an Amateur Extra Class license

7. - T1D03

When is it permissible to transmit messages encoded to obscure their meaning?

Select	Answer
A	Only when transmitting certain approved digital codes
B	Only when transmitting control commands to space stations or radio control craft
C	Only during contests
D	Never

8. - T1E02

Who may be the control operator of a station communicating through an amateur satellite or space station?

Select	Answer
A	Any amateur allowed to transmit on the satellite uplink frequency
B	A General class or higher licensee with a satellite operator certification
C	Only an Amateur Extra Class operator
D	Only an Amateur Extra Class operator who is also an AMSAT member

9. - T1F11

Which of the following is a requirement for the issuance of a club station license grant?

Select	Answer
A	The club must be registered with the American Radio Relay League
B	The trustee must have an Amateur Extra Class operator license grant
C	The club must have at least four members
D	All these choices are correct

10. - T2A02

What is the national calling frequency for FM simplex operations in the 2 meter band?

Select	Answer
A	446.000 MHz
B	146.520 MHz
C	432.100 MHz
D	145.000 MHz

11. - T2B13

What is the purpose of a squelch function?

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

12. - T2C09

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

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

13. - T3A08

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

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

14. - T3B10

What frequency range is referred to as HF?

Select	Answer
A	3 to 30 MHz
B	300 to 3000 MHz
C	30 to 300 MHz
D	300 to 3000 kHz

15. - T3C08

What causes tropospheric ducting?

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

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 frequency and power level at which the measurements will be made
C	All these choices are correct
D	The types of modulation being used at the station

17. - T4B03

How is squelch adjusted so that a weak FM signal can be heard?

Select	Answer
A	Set the squelch threshold so that receiver output audio is on all the time
B	Enable squelch enhancement
C	Turn up the audio level until it overcomes the squelch threshold
D	Turn on the anti-squelch function

18. - T5A10

Which term describes the rate at which electrical energy is used?

Select	Answer
A	Power
B	Voltage
C	Current
D	Resistance

19. - T5B08

Which is equal to 1,000,000 picofarads?

Select	Answer
A	1 microfarad
B	1000 microfarads
C	0.001 microfarads
D	1,000,000,000 microfarads

20. - T5C09

How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

Select	Answer
A	138 watts
B	3.8 watts
C	23.8 watts
D	0.7 watts

21. - T5D14

In which type of circuit is voltage the same across all components?

Select	Answer
A	Series
B	Parallel
C	Resonant
D	Branch

22. - T6A02

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

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

23. - T6B12

What are the names of the electrodes of a bipolar junction transistor?

Select	Answer
A	Pole one, pole two, output
B	Input, output, supply
C	Signal, bias, power
D	Emitter, base, collector

24. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Resistor
B	Connector
C	Battery
D	Transistor

25. - T6D10

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

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

26. - T7A02

What is a transceiver?

Select	Answer
A	A device for converting receiver and transmitter frequencies to another band
B	A device for automatically sending and decoding Morse code
C	A device for matching feed line impedance to 50 ohms
D	A device that combines a receiver and transmitter

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	Low-pass filter
C	Preamplifier
D	Band-pass filter

28. - T7C10

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

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

29. - T7D02

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

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

30. - T8A11

What is the approximate bandwidth required to transmit a CW signal?

Select	Answer
A	15 kHz
B	150 Hz
C	2.4 kHz
D	1000 Hz

31. - T8B02

What is the impact of using excessive effective radiated power on a satellite uplink?

Select	Answer
A	Possibility of commanding the satellite to an improper mode
B	Possibility of rebooting the satellite control computer
C	Overloading the satellite batteries
D	Blocking access by other users

32. - T8C04

Which of the following is good procedure when contacting another station in a contest?

Select	Answer
A	All these choices are correct
B	Sign only the last two letters of your call if there are many other stations calling
C	Send only the minimum information needed for proper identification and the contest exchange
D	Contact the station twice to be sure that you are in his log

33. - T8D11

What is an ARQ transmission system?

Select	Answer
A	A method of compressing data using autonomous reiterative Q codes prior to final encoding
B	A system used to encrypt command signals to an amateur radio satellite
C	A special transmission format limited to video signals
D	An error correction method in which the receiving station detects errors and sends a request for retransmission

34. - T9A01

What is a beam antenna?

Select	Answer
A	An antenna that concentrates signals in one direction
B	An antenna built from aluminum I-beams
C	An omnidirectional antenna invented by Clarence Beam
D	An antenna that reverses the phase of received signals

35. - T9B04

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

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

Figure T-1