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	RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas
C	Touching both terminals with the hands can cause electrical shock
D	Shorting the terminals can cause burns, fire, or an explosion

2. - T0B06

What is the minimum safe distance from a power line to allow when installing an antenna?

Select	Answer
A	1/2 wavelength at the operating frequency
B	Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
C	Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
D	The height of the power line above ground

3. - T0C02

At which of the following frequencies does maximum permissible exposure have the lowest value?

Select	Answer
A	440 MHz
B	50 MHz
C	3.5 MHz
D	1296 MHz

4. - T1A11

When is willful interference to other amateur radio stations permitted?

Select	Answer
A	At any time, stations in the Amateur Radio Service are not protected from willful interference
B	To stop another amateur station that is breaking the FCC rules
C	When making short test transmissions
D	At no time

5. - T1B05

How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

Select	Answer
A	Fixed digital message forwarding systems only
B	Emergency traffic only
C	Fast-scan television only
D	Spread spectrum only

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

7. - T1D09

When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

Select	Answer
A	When broadcasting communications to or from the space shuttle
B	Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
C	Never
D	When such communications are directly related to the immediate safety of human life or protection of property

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. - T1F11

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

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

10. - T2A01

What is a common repeater frequency offset in the 2 meter band?

Select	Answer
A	Plus or minus 5 MHz
B	Plus or minus 600 kHz
C	Plus or minus 1 MHz
D	Plus or minus 500 kHz

11. - T2B04

Which of the following could be the reason you are unable to access a repeater whose output you can hear?

Select	Answer
A	You are using the wrong CTCSS tone
B	All these choices are correct
C	Improper transceiver offset
D	You are using the wrong DCS code

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 when part of a RACES emergency plan
C	Yes, but only in situations involving the immediate safety of human life or protection of property
D	Yes, but only when part of a FEMA emergency plan

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. - T3B09

What frequency range is referred to as UHF?

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

15. - T3C06

What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Select	Answer
A	F2 region refraction
B	D region refraction
C	Tropospheric ducting
D	Faraday rotation

16. - T4A05

Where should an RF power meter be installed?

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

17. - T4B01

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

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

18. - T5A10

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

Select	Answer
A	Power
B	Current
C	Resistance
D	Voltage

19. - T5B02

Which is equal to 1,500,000 hertz?

Select	Answer
A	1500 kHz
B	150 kHz
C	1500 MHz
D	15 GHz

20. - T5C08

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

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

21. - T5D11

What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

Select	Answer
A	1 volt
B	9 volts
C	10 volts
D	11 volts

22. - T6A10

Which of the following battery chemistries is rechargeable?

Select	Answer
A	Lead-acid
B	All these choices are correct
C	Lithium-ion
D	Nickel-metal hydride

23. - T6B06

How is the cathode lead of a semiconductor diode often marked on the package?

Select	Answer
A	With a stripe
B	With the letter K
C	With the letter C
D	With the word "cathode"

24. - T6C11

What is component 4 in figure T-3?

Select	Answer
A	Transmitter
B	Antenna
C	Ground
D	Dummy load

25. - T6D07

Which of the following is commonly used as a visual indicator?

Select	Answer
A	LED
B	Bipolar transistor
C	FET
D	Zener diode

26. - T7A09

What is the function of the SSB/CW-FM switch on a VHF power amplifier?

Select	Answer
A	Reduce the received signal noise
B	Change the mode of the transmitted signal
C	Change the frequency range of the amplifier to operate in the proper segment of the band
D	Set the amplifier for proper operation in the selected mode

27. - T7B11

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

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

28. - T7C11

What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

Select	Answer
A	It has more loss per foot
B	It requires special techniques to prevent moisture in the cable
C	It cannot be used for VHF or UHF antennas
D	It cannot be used at below freezing temperatures

29. - T7D06

Which of the following can damage a multimeter?

Select	Answer
A	Failing to connect one of the probes to ground
B	Not allowing it to warm up properly
C	Attempting to measure voltage when using the resistance setting
D	Attempting to measure resistance using the voltage setting

30. - T8A10

What is the approximate bandwidth of AM fast-scan TV transmissions?

Select	Answer
A	About 1 MHz
B	More than 10 MHz
C	About 3 MHz
D	About 6 MHz

31. - T8B11

Who may receive telemetry from a space station?

Select	Answer
A	A licensed radio amateur who has been certified by the protocol developer
B	Anyone
C	A licensed radio amateur who has registered for an access code from AMSAT
D	A licensed radio amateur with a transmitter equipped for interrogating the satellite

32. - T8C11

What is an amateur radio station that connects other amateur stations to the internet?

Select	Answer
A	A repeater
B	A gateway
C	A beacon
D	A digipeater

33. - T8D13

What is FT8?

Select	Answer
A	A wideband FM voice mode
B	A digital slow-scan TV mode with forward error correction and automatic color compensation
C	An eight channel multiplex mode for FM repeaters
D	A digital mode capable of low signal-to-noise operation

34. - T9A01

What is a beam antenna?

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

35. - T9B09

What can cause erratic changes in SWR?

Select	Answer
A	Over-modulation
B	Overload from a strong local station
C	Local thunderstorm
D	Loose connection in the antenna or feed line

Figure T-3