US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Anonymous User

US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - T0A11

What hazard exists in a power supply immediately after turning it off?

Select	Answer
A	Charge stored in filter capacitors
B	Circulating currents in the dc filter
C	Voltage transients from kickback diodes
D	Leakage flux in the power transformer

2. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	The 60 Hz radiations from the feed line may increase the SWR
B	The antenna could contact high-voltage power lines
C	The antenna will not work properly because of induced voltages
D	All these choices are correct

3. - T0C02

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

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

4. - T1A08

Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

Select	Answer
A	Volunteer Frequency Coordinator recognized by local amateurs
B	Frequency Spectrum Manager appointed by the FCC
C	FCC Regional Field Office
D	International Telecommunication Union

5. - T1B11

What is the maximum peak envelope power output for Technician class operators in their HF band segments?

Select	Answer
A	200 watts
B	50 watts
C	10 watts
D	100 watts

6. - T1C09

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

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

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

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 class of operator license held by the control operator
C	The frequencies printed on the license grant
D	The frequency authorized by the frequency coordinator

9. - T1F03

When are you required to transmit your assigned call sign?

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

10. - T2A06

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

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

11. - T2B07

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

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

12. - T2C06

What is the Amateur Radio Emergency Service (ARES)?

Select	Answer
A	A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
B	A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
C	A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
D	A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service

13. - T3A04

What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

Select	Answer
A	Received signal strength is reduced
B	The modulation sidebands might become inverted
C	Signals have an echo effect
D	Nothing significant will happen

14. - T3B07

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

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

15. - T3C11

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

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

16. - T4A08

Which of the following conductors is preferred for bonding at RF?

Select	Answer
A	Copper braid removed from coaxial cable
B	Twisted-pair cable
C	Steel wire
D	Flat copper strap

17. - T4B12

What is the result of tuning an FM receiver above or below a signal’s frequency?

Select	Answer
A	Generation of a heterodyne tone
B	Distortion of the signal’s audio
C	Change in audio pitch
D	Sideband inversion

18. - T5A07

Why are metals generally good conductors of electricity?

Select	Answer
A	They have relatively high density
B	They have many free electrons
C	They have many free protons
D	All these choices are correct

19. - T5B09

Which decibel value most closely represents a power increase from 5 watts to 10 watts?

Select	Answer
A	3 dB
B	10 dB
C	2 dB
D	5 dB

20. - T5C13

What is the abbreviation for kilohertz?

Select	Answer
A	khz
B	KHZ
C	kHz
D	khZ

21. - T5D11

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

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

22. - T6A01

What electrical component opposes the flow of current in a DC circuit?

Select	Answer
A	Transformer
B	Inverter
C	Resistor
D	Inductor

23. - T6B07

What causes a light-emitting diode (LED) to emit light?

Select	Answer
A	Inductively-coupled RF signal
B	Forward current
C	Reverse current
D	Capacitively-coupled RF signal

24. - T6C08

What is component 9 in figure T-2?

Select	Answer
A	Variable resistor
B	Variable capacitor
C	Variable inductor
D	Variable transformer

25. - T6D09

What is the name of a device that combines several semiconductors and other components into one package?

Select	Answer
A	Transformer
B	Multi-pole relay
C	Transducer
D	Integrated circuit

26. - T7A03

Which of the following is used to convert a signal from one frequency to another?

Select	Answer
A	Inverter
B	Phase splitter
C	Mixer
D	Amplifier

27. - T7B06

Which of the following actions should you take if a neighbor tells you that your station’s transmissions are interfering with their radio or TV reception?

Select	Answer
A	Immediately turn off your transmitter and contact the nearest FCC office for assistance
B	All these choices are correct
C	Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
D	Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel

28. - T7C04

What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

Select	Answer
A	50:50
B	Zero
C	1:1
D	Full Scale

29. - T7D10

What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

Select	Answer
A	Decreasing resistance with time
B	Alternating between open and short circuit
C	Steady full-scale reading
D	Increasing resistance with time

30. - T8A08

What is the approximate bandwidth of a typical single sideband (SSB) voice signal?

Select	Answer
A	3 kHz
B	1 kHz
C	6 kHz
D	15 kHz

31. - T8B11

Who may receive telemetry from a space station?

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

32. - T8C10

What is required before using the EchoLink system?

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

33. - T8D12

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

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

34. - T9A06

Which of the following types of antenna offers the greatest gain?

Select	Answer
A	Yagi
B	5/8 wave vertical
C	J pole
D	Isotropic

35. - T9B09

What can cause erratic changes in SWR?

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

Figure T-2