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. - T0A09

What should be done to all external ground rods or earth connections?

Select	Answer
A	Tune them for resonance on the lowest frequency of operation
B	Keep them as far apart as possible
C	Bond them together with heavy wire or conductive strap
D	Waterproof them with silicone caulk or electrical tape

2. - T0B05

What is the purpose of a safety wire through a turnbuckle used to tension guy lines?

Select	Answer
A	Provide an ability to measure for proper tensioning
B	Secure the guy line if the turnbuckle breaks
C	Prevent loosening of the turnbuckle from vibration
D	Provide a ground path for lightning strikes

3. - T0C10

Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

Select	Answer
A	It affects the peak exposure to radiation
B	It takes into account the thermal effects of the final amplifier
C	It affects the average exposure to radiation
D	It takes into account the antenna feed line loss

4. - T1A02

Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

Select	Answer
A	The FCC
B	Homeland Security
C	FEMA
D	All these choices are correct

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	Fast-scan television only
C	Spread spectrum only
D	Emergency traffic only

6. - T1C02

Who may select a desired call sign under the vanity call sign rules?

Select	Answer
A	Only a licensed amateur who has been licensed continuously for more than 10 years
B	Any licensed amateur
C	Only a licensed amateur with an Amateur Extra Class license
D	Only a licensed amateur with a General or Amateur Extra Class license

7. - T1D06

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

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

8. - T1E03

Who must designate the station control operator?

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

9. - T1F10

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

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

10. - T2A03

What is a common repeater frequency offset in the 70 cm band?

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

11. - T2B13

What is the purpose of a squelch function?

Select	Answer
A	Reduce a CW transmitter's key clicks
B	Eliminate parasitic oscillations in an RF amplifier
C	Reduce interference from impulse noise
D	Mute the receiver audio when a signal is not present

12. - T2C09

Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

Select	Answer
A	Yes, but only when part of a RACES emergency plan
B	Yes, but only when part of a FEMA emergency plan
C	No
D	Yes, but only in situations involving the immediate safety of human life or protection of property

13. - T3A07

What weather condition might decrease range at microwave frequencies?

Select	Answer
A	High winds
B	Precipitation
C	Colder temperatures
D	Low barometric pressure

14. - T3B04

What is the velocity of a radio wave traveling through free space?

Select	Answer
A	Speed inversely proportional to its wavelength
B	Speed that increases as the frequency increases
C	Speed of light
D	Speed of sound

15. - T3C03

What is a characteristic of VHF signals received via auroral backscatter?

Select	Answer
A	They are generally strongest when your antenna is aimed west
B	They occur only during winter nighttime hours
C	They are often received from 10,000 miles or more
D	They are distorted and signal strength varies considerably

16. - T4A08

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

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

17. - T4B11

Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

Select	Answer
A	Your output power
B	The codec type being used
C	All these choices are correct
D	Your call sign

18. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Copper
B	Mercury
C	Aluminum
D	Glass

19. - T5B05

Which is equal to 500 milliwatts?

Select	Answer
A	0.02 watts
B	50 watts
C	0.5 watts
D	5 watts

20. - T5C10

How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

Select	Answer
A	14.5 watts
B	4.8 watts
C	0.208 watts
D	30 watts

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	0.125 ohms
B	13.5 ohms
C	8 ohms
D	18 ohms

22. - T6A09

What electrical component is used to protect other circuit components from current overloads?

Select	Answer
A	Fuse
B	Thyratron
C	All these choices are correct
D	Varactor

23. - T6B09

What are the names for the electrodes of a diode?

Select	Answer
A	Plus and minus
B	Source and drain
C	Gate and base
D	Anode and cathode

24. - T6C10

What is component 3 in figure T-3?

Select	Answer
A	Variable capacitor
B	Connector
C	Variable inductor
D	Meter

25. - T6D08

Which of the following is combined with an inductor to make a resonant circuit?

Select	Answer
A	Resistor
B	Capacitor
C	Zener diode
D	Potentiometer

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 frequency range of the amplifier to operate in the proper segment of the band
C	Change the mode of the transmitted signal
D	Set the amplifier for proper operation in the selected mode

27. - T7B02

What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

Select	Answer
A	The deviation of an FM transmitter is set too low
B	The audio amplifier of the transmitter is overloaded
C	The receiver is unable to reject strong signals outside the AM or FM band
D	The microphone gain of the transmitter is turned up too high

28. - T7C06

What does an SWR reading of 4:1 indicate?

Select	Answer
A	Good impedance match
B	Gain of +4 dB
C	Impedance mismatch
D	Loss of -4 dB

29. - T7D08

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

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

30. - T8A08

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

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

31. - T8B10

What is a LEO satellite?

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

32. - T8C09

Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

Select	Answer
A	EchoLink
B	IRLP
C	DMR
D	D-STAR

33. - T8D10

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

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

34. - T9A02

Which of the following describes a type of antenna loading?

Select	Answer
A	Electrically lengthening by inserting inductors in radiating elements
B	Strengthening the radiating elements of a beam antenna to better resist wind damage
C	Installing a spring in the base of a mobile vertical antenna to make it more flexible
D	Inserting a resistor in the radiating portion of the antenna to make it resonant

35. - T9B09

What can cause erratic changes in SWR?

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

Figure T-3