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	Voltage transients from kickback diodes
B	Leakage flux in the power transformer
C	Charge stored in filter capacitors
D	Circulating currents in the dc filter

2. - T0B01

Which of the following is good practice when installing ground wires on a tower for lightning protection?

Select	Answer
A	Make sure all ground wire bends are right angles
B	Put a drip loop in the ground connection to prevent water damage to the ground system
C	Ensure that connections are short and direct
D	All these choices are correct

3. - T0C07

What hazard is created by touching an antenna during a transmission?

Select	Answer
A	Radiation poisoning
B	RF burn to skin
C	Electrocution
D	All these choices are correct

4. - T1A08

Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

Select	Answer
A	FCC Regional Field Office
B	International Telecommunication Union
C	Frequency Spectrum Manager appointed by the FCC
D	Volunteer Frequency Coordinator recognized by local amateurs

5. - T1B04

Which amateur band includes 146.52 MHz?

Select	Answer
A	2 meters
B	6 meters
C	70 centimeters
D	20 meters

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 anywhere within International Telecommunication Union (ITU) Regions 2 and 3
D	From within any country that is a member of the United Nations

7. - T1D10

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

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

8. - T1E07

When the control operator is not the station licensee, who is responsible for the proper operation of the station?

Select	Answer
A	Only the station licensee
B	All licensed amateurs who are present at the operation
C	Only the control operator
D	The control operator and the station licensee

9. - T1F10

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

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

10. - T2A12

What should you do before calling CQ?

Select	Answer
A	All these choices are correct
B	Make sure you are authorized to use that frequency
C	Ask if the frequency is in use
D	Listen first to be sure that no one else is using the frequency

11. - T2B03

Which of the following describes a linked repeater network?

Select	Answer
A	A system of repeaters linked by APRS
B	A single repeater with more than one receiver
C	Multiple repeaters with the same control operator
D	A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network

12. - T2C01

When do FCC rules NOT apply to the operation of an amateur station?

Select	Answer
A	When operating under special FEMA rules
B	When operating under special ARES rules
C	FCC rules always apply
D	When operating a RACES station

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

14. - T3B09

What frequency range is referred to as UHF?

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

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

16. - T4A02

Which of the following should be considered when selecting an accessory SWR meter?

Select	Answer
A	The types of modulation being used at the station
B	The distance that the meter will be located from the antenna
C	All these choices are correct
D	The frequency and power level at which the measurements will be made

17. - T4B01

What is the effect of excessive microphone gain on SSB transmissions?

Select	Answer
A	Frequency instability
B	Distorted transmitted audio
C	Increased SWR
D	All these choices are correct

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Farad
B	Henry
C	Hertz
D	Tesla

19. - T5B04

Which is equal to one microvolt?

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

20. - T5C01

What describes the ability to store energy in an electric field?

Select	Answer
A	Capacitance
B	Resistance
C	Inductance
D	Tolerance

21. - T5D13

In which type of circuit is DC current the same through all components?

Select	Answer
A	Branch
B	Parallel
C	Series
D	Resonant

22. - T6A05

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

Select	Answer
A	Oscillator
B	Capacitor
C	Resistor
D	Potentiometer

23. - T6B03

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

Select	Answer
A	Transistor
B	Potentiometer
C	Varistor
D	Thermistor

24. - T6C04

What is component 3 in figure T-1?

Select	Answer
A	Lamp
B	Resistor
C	Ground symbol
D	Transistor

25. - T6D01

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Select	Answer
A	Transformer
B	Rectifier
C	Reflector
D	Amplifier

26. - T7A11

Where is an RF preamplifier installed?

Select	Answer
A	At the output of the receiver audio amplifier
B	At the output of the transmitter power amplifier
C	Between the antenna and receiver
D	Between the transmitter and the antenna tuner

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

28. - T7C02

Which of the following is used to determine if an antenna is resonant at the desired operating frequency?

Select	Answer
A	An antenna analyzer
B	A Q meter
C	A frequency counter
D	A VTVM

29. - T7D01

Which instrument would you use to measure electric potential?

Select	Answer
A	An ohmmeter
B	An ammeter
C	A wavemeter
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. - 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	The signal strength of received signals
C	Health and status of the satellite
D	All these choices are correct

32. - T8C04

Which of the following is good procedure when contacting another station in a contest?

Select	Answer
A	Sign only the last two letters of your call if there are many other stations calling
B	Contact the station twice to be sure that you are in his log
C	All these choices are correct
D	Send only the minimum information needed for proper identification and the contest exchange

33. - T8D08

Which of the following is included in packet radio transmissions?

Select	Answer
A	All these choices are correct
B	Automatic repeat request in case of error
C	A check sum that permits error detection
D	A header that contains the call sign of the station to which the information is being sent

34. - T9A11

What is antenna gain?

Select	Answer
A	The additional power that is added to the transmitter power
B	The increase in signal strength in a specified direction compared to a reference antenna
C	The increase in impedance on receive or transmit compared to a reference antenna
D	The additional power that is required in the antenna when transmitting on a higher frequency

35. - T9B11

Which of the following types of feed line has the lowest loss at VHF and UHF?

Select	Answer
A	Air-insulated hardline
B	Multi-conductor unbalanced cable
C	75-ohm flexible coax
D	50-ohm flexible coax

Figure T-1