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. - T0A01

Which of the following is a safety hazard of a 12-volt storage battery?

Select	Answer
A	All these choices are correct
B	Shorting the terminals can cause burns, fire, or an explosion
C	RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas
D	Touching both terminals with the hands can cause electrical shock

2. - T0B01

Which of the following is good practice when installing ground wires on a tower for lightning protection?

Select	Answer
A	All these choices are correct
B	Put a drip loop in the ground connection to prevent water damage to the ground system
C	Ensure that connections are short and direct
D	Make sure all ground wire bends are right angles

3. - T0C13

Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

Select	Answer
A	The station licensee
B	Anyone who is near an antenna
C	The local zoning board
D	The FCC

4. - T1A02

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

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

5. - T1B07

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

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

6. - T1C11

If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

Select	Answer
A	No, you must wait until the license has been renewed
B	Yes, as soon as you apply for renewal
C	Yes, for up to two years
D	Yes, for up to one year

7. - T1D05

When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

Select	Answer
A	When no profit is made on the sale
B	When the equipment is not the personal property of either the station licensee, or the control operator, or their close relatives
C	When selling amateur radio equipment and not on a regular basis
D	Never

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

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

9. - T1F09

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

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

10. - T2A06

Which of the following is required when making on-the-air test transmissions?

Select	Answer
A	Identify the transmitting station
B	Conduct tests only between 10 p.m. and 6 a.m. local time
C	All these choices are correct
D	Notify the FCC of the transmissions

11. - T2B02

What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

Select	Answer
A	CTCSS
B	DTMF
C	Tone burst
D	Carrier squelch

12. - T2C05

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

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

13. - T3A07

What weather condition might decrease range at microwave frequencies?

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

14. - T3B07

In addition to frequency, which of the following is used to identify amateur radio bands?

Select	Answer
A	The approximate wavelength in meters
B	All these choices are correct
C	Channel numbers
D	Traditional letter/number designators

15. - T3C04

Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

Select	Answer
A	Gray-line propagation
B	D region absorption
C	Backscatter
D	Sporadic E

16. - T4A06

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

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

17. - T4B07

What does a DMR “code plug” contain?

Select	Answer
A	Access information for repeaters and talkgroups
B	The codec for digitizing audio
C	The DMR software version
D	Your call sign in CW for automatic identification

18. - T5A10

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

Select	Answer
A	Current
B	Power
C	Resistance
D	Voltage

19. - T5B13

Which is equal to 2425 MHz?

Select	Answer
A	24.25 GHz
B	2425 GHz
C	0.002425 GHz
D	2.425 GHz

20. - T5C12

What is impedance?

Select	Answer
A	The Q or Quality Factor of a component
B	The inverse of resistance
C	The power handling capability of a component
D	The opposition to AC current flow

21. - T5D04

What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?

Select	Answer
A	3 ohms
B	30 ohms
C	93 ohms
D	270 ohms

22. - T6A07

What electrical component is typically constructed as a coil of wire?

Select	Answer
A	Diode
B	Capacitor
C	Switch
D	Inductor

23. - T6B12

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

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

24. - T6C05

What is component 4 in figure T-1?

Select	Answer
A	Battery
B	Transistor
C	Ground symbol
D	Resistor

25. - T6D02

What is a relay?

Select	Answer
A	An electrically-controlled switch
B	A pass transistor
C	An inverting amplifier
D	A current controlled amplifier

26. - T7A11

Where is an RF preamplifier installed?

Select	Answer
A	Between the transmitter and the antenna tuner
B	Between the antenna and receiver
C	At the output of the receiver audio amplifier
D	At the output of the transmitter power amplifier

27. - T7B11

What is a symptom of RF feedback in a transmitter or transceiver?

Select	Answer
A	Excessive SWR at the antenna connection
B	Frequent blowing of power supply fuses
C	Reports of garbled, distorted, or unintelligible voice transmissions
D	The transmitter will not stay on the desired frequency

28. - T7C01

What is the primary purpose of a dummy load?

Select	Answer
A	To improve the signal-to-noise ratio of a receiver
B	To improve the efficiency of an antenna
C	To prevent over-modulation of a transmitter
D	To prevent transmitting signals over the air when making tests

29. - T7D09

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

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

30. - T8A07

What is a characteristic of single sideband (SSB) compared to FM?

Select	Answer
A	SSB signals are less susceptible to interference
B	All these choices are correct
C	SSB signals have narrower bandwidth
D	SSB signals are easier to tune in correctly

31. - T8B05

What is a satellite beacon?

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

32. - T8C10

What is required before using the EchoLink system?

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

33. - T8D04

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

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

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 antenna that reverses the phase of received signals
D	An omnidirectional antenna invented by Clarence Beam

35. - T9B05

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

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

Figure T-1