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

3. - T0C03

How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?

Select	Answer
A	It increases by a factor of 3
B	It increases by a factor of 2
C	It decreases by 50 percent
D	There is no adjustment allowed for lower duty cycle

4. - T1A05

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

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

5. - T1B10

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

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

6. - T1C04

What may happen if the FCC is unable to reach you by email?

Select	Answer
A	Revocation of access to the license record in the FCC system
B	Revocation of the station license or suspension of the operator license
C	Nothing; there is no such requirement
D	Fine and suspension of operator license

7. - T1D10

How does the FCC define broadcasting for the Amateur Radio Service?

Select	Answer
A	Two-way transmissions by amateur stations
B	Any transmission made by the licensed station
C	Transmissions intended for reception by the general public
D	Transmission of messages directed only to amateur operators

8. - T1E02

Who may be the control operator of a station communicating through an amateur satellite or space station?

Select	Answer
A	A General class or higher licensee with a satellite operator certification
B	Only an Amateur Extra Class operator who is also an AMSAT member
C	Only an Amateur Extra Class operator
D	Any amateur allowed to transmit on the satellite uplink frequency

9. - T1F06

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

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

10. - T2A08

What is the meaning of the procedural signal “CQ”?

Select	Answer
A	Test transmission, no reply expected
B	Calling any station
C	Only the called station should transmit
D	Call on the quarter hour

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. - T2C03

What technique is used to ensure that voice messages containing unusual words are received correctly?

Select	Answer
A	Send the words by voice and Morse code
B	All these choices are correct
C	Spell the words using a standard phonetic alphabet
D	Speak very loudly into the microphone

13. - T3A08

What is a likely cause of irregular fading of signals propagated by the ionosphere?

Select	Answer
A	Random combining of signals arriving via different paths
B	Frequency shift due to Faraday rotation
C	Intermodulation distortion
D	Interference from thunderstorms

14. - T3B07

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

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

15. - T3C05

Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

Select	Answer
A	Quantum tunneling
B	Doppler shift
C	Knife-edge diffraction
D	Faraday rotation

16. - T4A05

Where should an RF power meter be installed?

Select	Answer
A	In parallel with the push-to-talk line and the antenna
B	In the feed line, between the transmitter and antenna
C	In the power supply cable, as close as possible to the radio
D	At the power supply output

17. - T4B02

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

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

18. - T5A11

What type of current flow is opposed by resistance?

Select	Answer
A	Alternating current
B	RF current
C	Direct current
D	All these choices are correct

19. - T5B05

Which is equal to 500 milliwatts?

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

20. - T5C13

What is the abbreviation for kilohertz?

Select	Answer
A	kHz
B	khz
C	khZ
D	KHZ

21. - T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

Select	Answer
A	1.5 volts
B	1 volt
C	2.5 volts
D	0.25 volts

22. - T6A12

What type of switch is represented by component 3 in figure T-2?

Select	Answer
A	Double-pole single-throw
B	Single-pole single-throw
C	Single-pole double-throw
D	Double-pole double-throw

23. - T6B06

How is the cathode lead of a semiconductor diode often marked on the package?

Select	Answer
A	With the word "cathode"
B	With the letter K
C	With the letter C
D	With a stripe

24. - T6C04

What is component 3 in figure T-1?

Select	Answer
A	Resistor
B	Transistor
C	Lamp
D	Ground symbol

25. - T6D02

What is a relay?

Select	Answer
A	An inverting amplifier
B	An electrically-controlled switch
C	A pass transistor
D	A current controlled amplifier

26. - T7A08

Which of the following describes combining speech with an RF carrier signal?

Select	Answer
A	Low-pass filtering
B	Oscillation
C	Modulation
D	Impedance matching

27. - T7B07

Which of the following can reduce overload of a VHF transceiver by a nearby commercial FM station?

Select	Answer
A	Installing bypass capacitors on the microphone cable
B	Installing a band-reject filter
C	Installing an RF preamplifier
D	Using double-shielded coaxial cable

28. - T7C11

What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

Select	Answer
A	It cannot be used at below freezing temperatures
B	It has more loss per foot
C	It requires special techniques to prevent moisture in the cable
D	It cannot be used for VHF or UHF antennas

29. - T7D01

Which instrument would you use to measure electric potential?

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

30. - T8A11

What is the approximate bandwidth required to transmit a CW signal?

Select	Answer
A	2.4 kHz
B	15 kHz
C	1000 Hz
D	150 Hz

31. - T8B10

What is a LEO satellite?

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

32. - T8C08

What is the Internet Radio Linking Project (IRLP)?

Select	Answer
A	A system for informing amateurs in real time of the frequency of active DX stations
B	A technique to connect amateur radio systems, such as repeaters, via the internet using Voice Over Internet Protocol (VoIP)
C	A technique for measuring signal strength of an amateur transmitter via the internet
D	A system for providing access to websites via amateur radio

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. - T9A10

In which direction does a half-wave dipole antenna radiate the strongest signal?

Select	Answer
A	Equally in all directions
B	In the direction of the feed line
C	Off the ends of the antenna
D	Broadside to the antenna

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-2

Figure T-1