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. - T0A04

What is the purpose of a fuse in an electrical circuit?

Select	Answer
A	To remove power in case of overload
B	To prevent power supply ripple from damaging a component
C	To limit current to prevent shocks
D	All these choices are correct

2. - T0B11

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

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

3. - T0C07

What hazard is created by touching an antenna during a transmission?

Select	Answer
A	All these choices are correct
B	RF burn to skin
C	Radiation poisoning
D	Electrocution

4. - T1A07

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

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

5. - T1B04

Which amateur band includes 146.52 MHz?

Select	Answer
A	20 meters
B	6 meters
C	70 centimeters
D	2 meters

6. - T1C01

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

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

7. - T1D07

What types of amateur stations can automatically retransmit the signals of other amateur stations?

Select	Answer
A	Repeater, auxiliary, or space stations
B	Earth, repeater, or space stations
C	Beacon, repeater, or space stations
D	Auxiliary, beacon, or Earth stations

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

Select	Answer
A	The frequencies printed on the license grant
B	The frequency authorized by the frequency coordinator
C	The class of operator license held by the control operator
D	The highest class of operator license held by anyone on the premises

9. - T1F03

When are you required to transmit your assigned call sign?

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

10. - T2A10

What is a band plan, beyond the privileges established by the FCC?

Select	Answer
A	A list of available net frequencies
B	A voluntary guideline for using different modes or activities within an amateur band
C	A plan devised by a club to indicate frequency band usage
D	A list of operating schedules

11. - T2B13

What is the purpose of a squelch function?

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

12. - T2C10

What information is contained in the preamble of a formal traffic message?

Select	Answer
A	Information needed to track the message
B	The email address of the originating station
C	The address of the intended recipient
D	The telephone number of the addressee

13. - T3A07

What weather condition might decrease range at microwave frequencies?

Select	Answer
A	Low barometric pressure
B	High winds
C	Colder temperatures
D	Precipitation

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C05

Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

Select	Answer
A	Doppler shift
B	Quantum tunneling
C	Faraday rotation
D	Knife-edge diffraction

16. - T4A05

Where should an RF power meter be installed?

Select	Answer
A	At the power supply output
B	In the power supply cable, as close as possible to the radio
C	In the feed line, between the transmitter and antenna
D	In parallel with the push-to-talk line and the antenna

17. - T4B01

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

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

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Siemens
B	Ohms
C	Mhos
D	Coulombs

19. - T5B12

Which is equal to 28400 kHz?

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

20. - T5C01

What describes the ability to store energy in an electric field?

Select	Answer
A	Capacitance
B	Inductance
C	Resistance
D	Tolerance

21. - T5D06

What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

Select	Answer
A	8 ohms
B	16 ohms
C	48 ohms
D	3 ohms

22. - T6A02

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

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

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Transistor
B	Resistor
C	Transformer
D	Reactor

24. - T6C12

Which of the following is accurately represented in electrical schematics?

Select	Answer
A	Component connections
B	All these choices are correct
C	Wire lengths
D	Physical appearance of components

25. - T6D05

What type of circuit controls the amount of voltage from a power supply?

Select	Answer
A	Regulator
B	Oscillator
C	Phase inverter
D	Filter

26. - T7A01

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

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

27. - T7B01

What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

Select	Answer
A	Change to a higher power level
B	Talk farther away from the microphone
C	Talk louder into the microphone
D	Let the transceiver cool off

28. - T7C03

What does a dummy load consist of?

Select	Answer
A	A 50-ohm reactance used to terminate a transmission line
B	A non-inductive resistor mounted on a heat sink
C	A low-voltage power supply and a DC relay
D	A high-gain amplifier and a TR switch

29. - T7D03

When configured to measure current, how is a multimeter connected to a component?

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

30. - T8A03

Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?

Select	Answer
A	SSB
B	DRM
C	FM
D	PM

31. - T8B09

What causes spin fading of satellite signals?

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

32. - T8C10

What is required before using the EchoLink system?

Select	Answer
A	Complete the required EchoLink training
B	Register your call sign and provide proof of license
C	All these choices are correct
D	Purchase a license to use the EchoLink software

33. - T8D01

Which of the following is a digital communications mode?

Select	Answer
A	Packet radio
B	IEEE 802.11
C	All these choices are correct
D	FT8

34. - T9A02

Which of the following describes a type of antenna loading?

Select	Answer
A	Strengthening the radiating elements of a beam antenna to better resist wind damage
B	Installing a spring in the base of a mobile vertical antenna to make it more flexible
C	Electrically lengthening by inserting inductors in radiating elements
D	Inserting a resistor in the radiating portion of the antenna to make it resonant

35. - T9B12

What is standing wave ratio (SWR)?

Select	Answer
A	The ratio of amplifier power output to input
B	The transmitter efficiency ratio
C	An indication of the quality of your station’s ground connection
D	A measure of how well a load is matched to a transmission line