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

2. - T0B06

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

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

3. - T0C13

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

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

4. - T1A03

What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

Select	Answer
A	It is encouraged
B	It is required when transmitting emergency messages
C	It is required when in contact with foreign stations
D	All these choices are correct

5. - T1B10

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

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

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, for up to one year
C	Yes, for up to two years
D	Yes, as soon as you apply for renewal

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	Never
D	Only during contests

8. - T1E03

Who must designate the station control operator?

Select	Answer
A	The FCC
B	The frequency coordinator
C	Any licensed operator
D	The station licensee

9. - T1F01

When must the station and its records be available for FCC inspection?

Select	Answer
A	At any time after written notification by the FCC of such inspection
B	Only when presented with a valid warrant by an FCC official or government agent
C	At any time upon request by an FCC representative
D	At any time ten days after notification by the FCC of such an inspection

10. - T2A06

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

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

11. - T2B07

How can you join a digital repeater’s “talkgroup”?

Select	Answer
A	Program your radio with the group’s ID or code
B	Join the repeater owner’s club
C	Sign your call after the courtesy tone
D	Register your radio with the local FCC office

12. - T2C04

What is RACES?

Select	Answer
A	An emergency organization combining amateur radio and citizens band operators and frequencies
B	An FCC part 97 amateur radio service for civil defense communications during national emergencies
C	A radio contest held in a short period, sometimes called a “sprint”
D	An international radio experimentation society

13. - T3A09

Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

Select	Answer
A	Digital modes are unusable
B	Either vertically or horizontally polarized antennas may be used for transmission or reception
C	Both the transmitting and receiving antennas must be of the same polarization
D	FM voice is unusable

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. - T3C01

Why are simplex UHF signals rarely heard beyond their radio horizon?

Select	Answer
A	FCC regulations prohibit them from going more than 50 miles
B	UHF signals are absorbed by the ionospheric D region
C	They are too weak to go very far
D	UHF signals are usually not propagated by the ionosphere

16. - T4A11

Where should the negative power return of a mobile transceiver be connected in a vehicle?

Select	Answer
A	Through the transceiver’s mounting bracket
B	At the 12 volt battery chassis ground
C	To any metal part of the vehicle
D	At the antenna mount

17. - T4B05

What does the scanning function of an FM transceiver do?

Select	Answer
A	Checks incoming signal deviation
B	Prevents interference to nearby repeaters
C	Tunes through a range of frequencies to check for activity
D	Checks for messages left on a digital bulletin board

18. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Mercury
B	Aluminum
C	Copper
D	Glass

19. - T5B04

Which is equal to one microvolt?

Select	Answer
A	One million volts
B	One thousand kilovolts
C	One one-millionth of a volt
D	One one-thousandth of a volt

20. - T5C05

What is the unit of impedance?

Select	Answer
A	The ohm
B	The ampere
C	The volt
D	The coulomb

21. - T5D14

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

Select	Answer
A	Parallel
B	Branch
C	Resonant
D	Series

22. - T6A11

Which of the following battery chemistries is not rechargeable?

Select	Answer
A	Lead-acid
B	Carbon-zinc
C	Lithium-ion
D	Nickel-cadmium

23. - T6B05

What type of transistor has a gate, drain, and source?

Select	Answer
A	Bipolar junction
B	Tesla-effect
C	Varistor
D	Field-effect

24. - T6C05

What is component 4 in figure T-1?

Select	Answer
A	Ground symbol
B	Battery
C	Transistor
D	Resistor

25. - T6D10

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

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

26. - T7A02

What is a transceiver?

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

27. - T7B10

What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

Select	Answer
A	Your transmitter is slightly off frequency
B	Your batteries are running low
C	You are in a bad location
D	All these choices are correct

28. - T7C05

Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

Select	Answer
A	To comply with FCC rules on spectral purity
B	Because power supplies cannot supply enough current at high SWR
C	To protect the output amplifier transistors
D	To lower the SWR on the transmission line

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

30. - T8A12

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

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

31. - T8B04

What mode of transmission is commonly used by amateur radio satellites?

Select	Answer
A	All these choices are correct
B	CW/data
C	FM
D	SSB

32. - T8C04

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

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

33. - T8D12

Which of the following best describes an amateur radio mesh network?

Select	Answer
A	A satellite communications network using modified commercial satellite TV hardware
B	An amateur-radio based data network using commercial Wi-Fi equipment with modified firmware
C	A wide-bandwidth digital voice mode employing DMR protocols
D	An internet linking protocol used to network repeaters

34. - T9A04

What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna?

Select	Answer
A	It is mechanically fragile
B	It has low efficiency
C	All these choices are correct
D	It transmits only circularly polarized signals

35. - T9B04

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

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

Figure T-1