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. - T0A02

What health hazard is presented by electrical current flowing through the body?

Select	Answer
A	It may cause injury by heating tissue
B	All these choices are correct
C	It may cause involuntary muscle contractions
D	It may disrupt the electrical functions of cells

2. - T0B04

Which of the following is an important safety precaution to observe when putting up an antenna tower?

Select	Answer
A	All these choices are correct
B	Wear a ground strap connected to your wrist at all times
C	Look for and stay clear of any overhead electrical wires
D	Insulate the base of the tower to avoid lightning strikes

3. - T0C11

What is the definition of duty cycle during the averaging time for RF exposure?

Select	Answer
A	The difference between the lowest power output and the highest power output of a transmitter
B	The percentage of time that a transmitter is not transmitting
C	The difference between the PEP and average power output of a transmitter
D	The percentage of time that a transmitter is transmitting

4. - T1A06

What is the FCC Part 97 definition of a beacon?

Select	Answer
A	A bulletin sent by the FCC to announce a national emergency
B	A continuous transmission of weather information authorized in the amateur bands by the National Weather Service
C	A government transmitter marking the amateur radio band edges
D	An amateur station transmitting communications for the purposes of observing propagation or related experimental activities

5. - T1B10

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

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

6. - T1C06

From which of the following locations may an FCC-licensed amateur station transmit?

Select	Answer
A	From within any country that belongs to the International Telecommunication Union
B	From any vessel or craft located in international waters and documented or registered in the United States
C	From within any country that is a member of the United Nations
D	From anywhere within International Telecommunication Union (ITU) Regions 2 and 3

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 selling amateur radio equipment and not on a regular basis
B	Never
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. - T1E03

Who must designate the station control operator?

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

9. - T1F06

Which of the following self-assigned indicators are acceptable when using a phone transmission?

Select	Answer
A	KL7CC stroke W3
B	KL7CC slash W3
C	KL7CC slant W3
D	All these choices are correct

10. - T2A05

How should you respond to a station calling CQ?

Select	Answer
A	Transmit the other station’s call sign followed by your call sign
B	Transmit "CQ" followed by the other station’s call sign
C	Transmit a signal report followed by your call sign
D	Transmit your call sign followed by the other station’s call sign

11. - T2B08

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

Select	Answer
A	Use subaudible tones so both stations can share the frequency
B	Both stations should choose another frequency to avoid conflict
C	Interference is inevitable, so no action is required
D	The stations should negotiate continued use of the frequency

12. - T2C08

Which of the following is a characteristic of good traffic handling?

Select	Answer
A	Ensuring that any newsworthy messages are relayed to the news media
B	All these choices are correct
C	Passing messages exactly as received
D	Making decisions as to whether messages are worthy of relay or delivery

13. - T3A05

When using a directional antenna, how might your station be able to communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?

Select	Answer
A	Try the long path
B	Try to find a path that reflects signals to the repeater
C	Change from vertical to horizontal polarization
D	Increase the antenna SWR

14. - T3B09

What frequency range is referred to as UHF?

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

15. - T3C09

What is generally the best time for long-distance 10 meter band propagation via the F region?

Select	Answer
A	From dawn to shortly after sunset during periods of high sunspot activity
B	From shortly after sunset to dawn during periods of low sunspot activity
C	From dawn to shortly after sunset during periods of low sunspot activity
D	From shortly after sunset to dawn during periods of high sunspot activity

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 antenna mount
C	To any metal part of the vehicle
D	At the 12 volt battery chassis ground

17. - T4B07

What does a DMR “code plug” contain?

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

18. - T5A03

What is the name for the flow of electrons in an electric circuit?

Select	Answer
A	Current
B	Resistance
C	Voltage
D	Capacitance

19. - T5B13

Which is equal to 2425 MHz?

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

20. - T5C03

What describes the ability to store energy in a magnetic field?

Select	Answer
A	Admittance
B	Resistance
C	Capacitance
D	Inductance

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	270 ohms
B	93 ohms
C	3 ohms
D	30 ohms

22. - T6A05

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

Select	Answer
A	Resistor
B	Capacitor
C	Oscillator
D	Potentiometer

23. - T6B04

Which of the following components can consist of three regions of semiconductor material?

Select	Answer
A	Triode
B	Pentagrid converter
C	Transistor
D	Alternator

24. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Battery
B	Transistor
C	Connector
D	Resistor

25. - T6D06

What component changes 120 V AC power to a lower AC voltage for other uses?

Select	Answer
A	Transistor
B	Diode
C	Variable capacitor
D	Transformer

26. - T7A05

What is the name of a circuit that generates a signal at a specific frequency?

Select	Answer
A	Phase modulator
B	Oscillator
C	Low-pass filter
D	Reactance modulator

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	Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
B	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
C	Immediately turn off your transmitter and contact the nearest FCC office for assistance
D	All these choices are correct

28. - T7C07

What happens to power lost in a feed line?

Select	Answer
A	It distorts the signal
B	It is converted into heat
C	It is radiated as harmonics
D	It increases the SWR

29. - T7D08

Which of the following types of solder should not be used for radio and electronic applications?

Select	Answer
A	Tin-copper solder
B	Rosin-core solder
C	Acid-core solder
D	Lead-tin solder

30. - T8A02

What type of modulation is commonly used for VHF packet radio transmissions?

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

31. - T8B10

What is a LEO satellite?

Select	Answer
A	A satellite in low earth orbit
B	A sun synchronous satellite
C	A satellite in low energy operation mode
D	A highly elliptical orbit satellite

32. - T8C11

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

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

33. - T8D02

What is a “talkgroup” on a DMR repeater?

Select	Answer
A	A way for groups of users to share a channel at different times without hearing other users on the channel
B	A group of operators sharing common interests
C	A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
D	A net that meets at a specified time

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

35. - T9B10

What is the electrical difference between RG-58 and RG-213 coaxial cable?

Select	Answer
A	There is no significant difference between the two types
B	RG-213 cable has less loss at a given frequency
C	RG-58 cable has two shields
D	RG-58 cable can handle higher power levels

Figure T-1