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. - T0A12

Which of the following precautions should be taken when measuring high voltages with a voltmeter?

Select	Answer
A	Ensure that the voltmeter is set to the correct frequency
B	Ensure that the voltmeter has very low impedance
C	Ensure that the voltmeter and leads are rated for use at the voltages to be measured
D	Ensure that the circuit is grounded through the voltmeter

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 will not work properly because of induced voltages
C	The antenna could contact high-voltage power lines
D	All these choices are correct

3. - T0C13

Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

Select	Answer
A	Anyone who is near an antenna
B	The station licensee
C	The local zoning board
D	The FCC

4. - T1A01

Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

Select	Answer
A	Providing communications for international non-profit organizations
B	Providing personal radio communications for as many citizens as possible
C	Advancing skills in the technical and communication phases of the radio art
D	All these choices are correct

5. - T1B01

Which of the following frequency ranges are available for phone operation by Technician licensees?

Select	Answer
A	28.500 MHz to 28.600 MHz
B	28.100 MHz to 28.300 MHz
C	28.300 MHz to 28.500 MHz
D	28.050 MHz to 28.150 MHz

6. - T1C11

If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

Select	Answer
A	Yes, as soon as you apply for renewal
B	Yes, for up to two years
C	No, you must wait until the license has been renewed
D	Yes, for up to one year

7. - T1D07

What types of amateur stations can automatically retransmit the signals of other amateur stations?

Select	Answer
A	Earth, repeater, or space stations
B	Auxiliary, beacon, or Earth stations
C	Repeater, auxiliary, or space stations
D	Beacon, repeater, or space stations

8. - T1E09

Which of the following are required for remote control operation?

Select	Answer
A	All these choices are correct
B	The control operator must be at the control point
C	A control operator is required at all times
D	The control operator must indirectly manipulate the controls

9. - T1F09

What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

Select	Answer
A	Message forwarding station
B	Earth station
C	Beacon station
D	Repeater station

10. - T2A08

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

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

11. - T2B13

What is the purpose of a squelch function?

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

12. - T2C11

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

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

13. - T3A02

What is the effect of vegetation on UHF and microwave signals?

Select	Answer
A	Knife-edge diffraction
B	Amplification
C	Absorption
D	Polarization rotation

14. - T3B07

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

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

15. - T3C10

Which of the following bands may provide long-distance communications via the ionosphere’s F region during the peak of the sunspot cycle?

Select	Answer
A	70 centimeters and 1.25 meters
B	6 and 10 meters
C	All these choices are correct
D	23 centimeters

16. - T4A05

Where should an RF power meter be installed?

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

17. - T4B10

Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

Select	Answer
A	5000 Hz
B	1000 Hz
C	500 Hz
D	2400 Hz

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Coulombs
B	Mhos
C	Ohms
D	Siemens

19. - T5B03

Which is equal to one kilovolt?

Select	Answer
A	One million volts
B	One thousand volts
C	One one-thousandth of a volt
D	One hundred volts

20. - T5C09

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

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

21. - T5D01

What formula is used to calculate current in a circuit?

Select	Answer
A	I = E - R
B	I = E / R
C	I = E + R
D	I = E  R

22. - T6A02

What type of component is often used as an adjustable volume control?

Select	Answer
A	Transformer
B	Potentiometer
C	Fixed resistor
D	Power resistor

23. - T6B03

Which of these components can be used as an electronic switch?

Select	Answer
A	Potentiometer
B	Transistor
C	Varistor
D	Thermistor

24. - T6C03

What is component 2 in figure T-1?

Select	Answer
A	Connector
B	Transistor
C	Indicator lamp
D	Resistor

25. - T6D10

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

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

26. - T7A01

Which term describes the ability of a receiver to detect the presence of a signal?

Select	Answer
A	Linearity
B	Selectivity
C	Total Harmonic Distortion
D	Sensitivity

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	All these choices are correct
B	Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
C	Immediately turn off your transmitter and contact the nearest FCC office for assistance
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. - T7C03

What does a dummy load consist of?

Select	Answer
A	A high-gain amplifier and a TR switch
B	A non-inductive resistor mounted on a heat sink
C	A 50-ohm reactance used to terminate a transmission line
D	A low-voltage power supply and a DC relay

29. - T7D08

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

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

30. - T8A09

What is the approximate bandwidth of a VHF repeater FM voice signal?

Select	Answer
A	Between 10 and 15 kHz
B	About 150 kHz
C	Between 50 and 125 kHz
D	Less than 500 Hz

31. - T8B01

What telemetry information is typically transmitted by satellite beacons?

Select	Answer
A	Time of day accurate to plus or minus 1/10 second
B	Health and status of the satellite
C	The signal strength of received signals
D	All these choices are correct

32. - T8C03

What operating activity involves contacting as many stations as possible during a specified period?

Select	Answer
A	Contesting
B	Public service events
C	Simulated emergency exercises
D	Net operations

33. - T8D07

Which of the following describes DMR?

Select	Answer
A	A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction
B	An automatic computer logging technique for hands-off logging when communicating while operating a vehicle
C	A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
D	An automatic position tracking mode for FM mobiles communicating through repeaters

34. - T9A04

What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna?

Select	Answer
A	It has low efficiency
B	It is mechanically fragile
C	It transmits only circularly polarized signals
D	All these choices are correct

35. - T9B01

What is a benefit of low SWR?

Select	Answer
A	All these choices are correct
B	Reduced television interference
C	Reduced signal loss
D	Less antenna wear

Figure T-1