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. - T0A05

Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

Select	Answer
A	All these choices are correct
B	The larger fuse would be likely to blow because it is rated for higher current
C	Excessive current could cause a fire
D	The power supply ripple would greatly increase

2. - T0B01

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

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

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	The local zoning board
C	The FCC
D	Anyone who is near an antenna

4. - T1A05

What proves that the FCC has issued an operator/primary license grant?

Select	Answer
A	An email notification from the NCVEC granting the license
B	The license appears in the FCC ULS database
C	A printed copy of the certificate of successful completion of examination
D	All these choices are correct

5. - T1B08

How are US amateurs restricted in segments of bands where the Amateur Radio Service is secondary?

Select	Answer
A	U.S. amateurs must give foreign amateur stations priority in those segments
B	International communications are not permitted in those segments
C	U.S. amateurs may find non-amateur stations in those segments, and must avoid interfering with them
D	Digital transmissions are not permitted in those segments

6. - T1C09

What is the grace period for renewal if an amateur license expires?

Select	Answer
A	Five years
B	Three years
C	Ten years
D	Two years

7. - T1D06

What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

Select	Answer
A	The ITU maintains a list of words that are not permitted to be used on amateur frequencies
B	The FCC maintains a list of words that are not permitted to be used on amateur frequencies
C	Any such language is prohibited
D	There is no such prohibition

8. - T1E03

Who must designate the station control operator?

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

9. - T1F10

Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?

Select	Answer
A	Both the originating station and the repeater owner
B	The owner of the repeater
C	The control operator of the originating station
D	The control operator of the repeater

10. - T2A06

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

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

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	Tone burst
B	DTMF
C	Carrier squelch
D	CTCSS

12. - T2C07

Which of the following is standard practice when you participate in a net?

Select	Answer
A	Record the time of each of your transmissions
B	Unless you are reporting an emergency, transmit only when directed by the net control station
C	When first responding to the net control station, transmit your call sign, name, and address as in the FCC database
D	All these choices are correct

13. - T3A01

Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

Select	Answer
A	All these choices are correct
B	Multipath propagation cancels or reinforces signals
C	VHF ionospheric propagation is very sensitive to path length
D	The signal path encounters different concentrations of water vapor

14. - T3B06

What is the formula for converting frequency to approximate wavelength in meters?

Select	Answer
A	Wavelength in meters equals frequency in megahertz divided by 300
B	Wavelength in meters equals 300 divided by frequency in megahertz
C	Wavelength in meters equals frequency in hertz multiplied by 300
D	Wavelength in meters equals frequency in hertz divided by 300

15. - T3C11

Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

Select	Answer
A	Radio waves are blocked by dust particles
B	The atmosphere refracts radio waves slightly
C	Radio waves are not blocked by dust particles
D	Radio signals move somewhat faster than the speed of light

16. - T4A12

What is an electronic keyer?

Select	Answer
A	A device that assists in manual sending of Morse code
B	An interlock to prevent unauthorized use of a radio
C	A device for voice activated switching from receive to transmit
D	A device for switching antennas from transmit to receive

17. - T4B04

What is a way to enable quick access to a favorite frequency or channel on your transceiver?

Select	Answer
A	Use the scan mode to select the desired frequency
B	Enable the frequency offset
C	Store it in a memory channel
D	Enable the VOX

18. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Glass
B	Copper
C	Mercury
D	Aluminum

19. - T5B07

Which is equal to 3.525 MHz?

Select	Answer
A	3525 kHz
B	35.25 kHz
C	0.003525 kHz
D	3,525,000 kHz

20. - T5C08

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

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

21. - T5D05

What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

Select	Answer
A	18 ohms
B	8 ohms
C	13.5 ohms
D	0.125 ohms

22. - T6A05

What type of electrical component consists of conductive surfaces separated by an insulator?

Select	Answer
A	Capacitor
B	Potentiometer
C	Oscillator
D	Resistor

23. - T6B11

What is the term that describes a device's ability to amplify a signal?

Select	Answer
A	On resistance
B	Forward resistance
C	Gain
D	Forward voltage drop

24. - T6C01

What is the name of an electrical wiring diagram that uses standard component symbols?

Select	Answer
A	Connector pinout
B	Flow chart
C	Schematic
D	Bill of materials

25. - T6D05

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

Select	Answer
A	Oscillator
B	Filter
C	Phase inverter
D	Regulator

26. - T7A07

What is the function of a transceiver’s PTT input?

Select	Answer
A	Provides a transmit tuning tone when grounded
B	Input for a key used to send CW
C	Input for a preamplifier tuning tone
D	Switches transceiver from receive to transmit when grounded

27. - T7B03

Which of the following can cause radio frequency interference?

Select	Answer
A	Fundamental overload
B	All these choices are correct
C	Spurious emissions
D	Harmonics

28. - T7C02

Which of the following is used to determine if an antenna is resonant at the desired operating frequency?

Select	Answer
A	A frequency counter
B	A VTVM
C	A Q meter
D	An antenna analyzer

29. - T7D07

Which of the following measurements are made using a multimeter?

Select	Answer
A	Voltage and resistance
B	All these choices are correct
C	Signal strength and noise
D	Impedance and reactance

30. - T8A04

Which type of modulation is commonly used for VHF and UHF voice repeaters?

Select	Answer
A	AM
B	FM or PM
C	PSK
D	SSB

31. - T8B04

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

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

32. - T8C06

How is over the air access to IRLP nodes accomplished?

Select	Answer
A	By obtaining a password that is sent via voice to the node
B	By using CTCSS tone codes
C	By entering the proper internet password
D	By using DTMF signals

33. - T8D10

Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

Select	Answer
A	Earth-Moon-Earth
B	Weak signal propagation beacons
C	All these choices are correct
D	Meteor scatter

34. - T9A09

What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

Select	Answer
A	6
B	50
C	112
D	236

35. - T9B12

What is standing wave ratio (SWR)?

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