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. - T0A07

Where should a lightning arrester be installed in a coaxial feed line?

Select	Answer
A	At the output connector of a transceiver
B	At the ac power service panel
C	At the antenna feed point
D	On a grounded panel near where feed lines enter the building

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	Look for and stay clear of any overhead electrical wires
C	Insulate the base of the tower to avoid lightning strikes
D	Wear a ground strap connected to your wrist at all times

3. - T0C04

What factors affect the RF exposure of people near an amateur station antenna?

Select	Answer
A	Distance from the antenna to a person
B	Frequency and power level of the RF field
C	Radiation pattern of the antenna
D	All these choices are correct

4. - T1A11

When is willful interference to other amateur radio stations permitted?

Select	Answer
A	At no time
B	When making short test transmissions
C	At any time, stations in the Amateur Radio Service are not protected from willful interference
D	To stop another amateur station that is breaking the FCC rules

5. - T1B12

Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

Select	Answer
A	50 watts
B	500 watts
C	1500 watts
D	100 watts

6. - T1C05

Which of the following is a valid Technician class call sign format?

Select	Answer
A	KF1XXX
B	KA1X
C	W1XX
D	All these choices are correct

7. - T1D01

With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

Select	Answer
A	Any country banned from such communications by the International Amateur Radio Union (IARU)
B	Any country banned from making such communications by the American Radio Relay League (ARRL)
C	Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications
D	Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications

8. - T1E01

When may an amateur station transmit without a control operator?

Select	Answer
A	Never
B	When the station licensee is away and another licensed amateur is using the station
C	When the transmitting station is an auxiliary station
D	When using automatic control, such as in the case of a repeater

9. - T1F06

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

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

10. - T2A07

What is meant by "repeater offset”?

Select	Answer
A	The repeater station identification is done on a separate frequency
B	The number of simultaneous transmit frequencies used by a repeater
C	The difference between a repeater’s transmit and receive frequencies
D	The repeater has a time delay to prevent interference

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	Carrier squelch
B	Tone burst
C	DTMF
D	CTCSS

12. - T2C11

What is meant by “check” in a radiogram header?

Select	Answer
A	A list of stations that have relayed the message
B	The number of words or word equivalents in the text portion of the message
C	A box on the message form that indicates that the message was received and/or relayed
D	The call sign of the originating station

13. - T3A11

Which region of the atmosphere can refract or bend HF and VHF radio waves?

Select	Answer
A	The mesosphere
B	The stratosphere
C	The ionosphere
D	The troposphere

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C01

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

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

16. - T4A12

What is an electronic keyer?

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

17. - T4B02

Which of the following can be used to enter a transceiver’s operating frequency?

Select	Answer
A	The CTCSS or DTMF encoder
B	All these choices are correct
C	The keypad or VFO knob
D	The Automatic Frequency Control

18. - T5A09

Which of the following describes alternating current?

Select	Answer
A	Current that alternates between a negative direction and zero
B	All these answers are correct
C	Current that alternates between a positive direction and zero
D	Current that alternates between positive and negative directions

19. - T5B10

Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

Select	Answer
A	-1 dB
B	-3 dB
C	-6 dB
D	-9 dB

20. - T5C09

How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

Select	Answer
A	138 watts
B	3.8 watts
C	0.7 watts
D	23.8 watts

21. - T5D06

What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

Select	Answer
A	16 ohms
B	3 ohms
C	48 ohms
D	8 ohms

22. - T6A06

What type of electrical component stores energy in a magnetic field?

Select	Answer
A	Diode
B	Capacitor
C	Inductor
D	Varistor

23. - T6B01

Which is true about forward voltage drop in a diode?

Select	Answer
A	It is lower in some diode types than in others
B	It has no impact on the voltage delivered to the load
C	It is proportional to peak inverse voltage
D	It indicates that the diode is defective

24. - T6C12

Which of the following is accurately represented in electrical schematics?

Select	Answer
A	Wire lengths
B	All these choices are correct
C	Component connections
D	Physical appearance of components

25. - T6D10

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

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

26. - T7A09

What is the function of the SSB/CW-FM switch on a VHF power amplifier?

Select	Answer
A	Change the frequency range of the amplifier to operate in the proper segment of the band
B	Change the mode of the transmitted signal
C	Reduce the received signal noise
D	Set the amplifier for proper operation in the selected mode

27. - T7B09

What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

Select	Answer
A	Add a low-pass filter to the TV antenna input
B	Add a preamplifier to the TV antenna input
C	Add a high-pass filter to the TV antenna input
D	Be sure all TV feed line coaxial connectors are installed properly

28. - T7C10

Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

Select	Answer
A	Ultraviolet light can damage the jacket and allow water to enter the cable
B	Ultraviolet light can increase losses in the cable’s jacket
C	Ultraviolet and RF signals can mix, causing interference
D	Ultraviolet resistant jackets prevent harmonic radiation

29. - T7D01

Which instrument would you use to measure electric potential?

Select	Answer
A	An ammeter
B	A wavemeter
C	An ohmmeter
D	A voltmeter

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

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. - T8D04

What type of transmission is indicated by the term "NTSC?"

Select	Answer
A	A Normal Transmission mode in Static Circuit
B	A frame compression scheme for TV signals
C	A special mode for satellite uplink
D	An analog fast-scan color TV signal

34. - T9A08

What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

Select	Answer
A	112
B	50
C	19
D	12

35. - T9B02

What is the most common impedance of coaxial cables used in amateur radio?

Select	Answer
A	50 ohms
B	8 ohms
C	600 ohms
D	12 ohms

Figure T-1