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. - T0A10

What hazard is caused by charging or discharging a battery too quickly?

Select	Answer
A	Half-wave rectification
B	Excess output ripple
C	Inverse memory effect
D	Overheating or out-gassing

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

3. - T0C04

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

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

4. - T1A11

When is willful interference to other amateur radio stations permitted?

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

5. - T1B08

How are US amateurs restricted in segments of bands where the Amateur Radio Service is secondary?

Select	Answer
A	Digital transmissions are not permitted in those segments
B	U.S. amateurs may find non-amateur stations in those segments, and must avoid interfering with them
C	U.S. amateurs must give foreign amateur stations priority in those segments
D	International communications are not permitted in those segments

6. - T1C02

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

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

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. - T1E09

Which of the following are required for remote control operation?

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

9. - T1F02

How often must you identify with your FCC-assigned call sign when using tactical call signs such as “Race Headquarters”?

Select	Answer
A	At the end of each communication and every ten minutes during a communication
B	Once during every hour
C	Never, the tactical call is sufficient
D	At the end of every transmission

10. - T2A04

What is an appropriate way to call another station on a repeater if you know the other station's call sign?

Select	Answer
A	Say "CQ" three times, then the other station's call sign
B	Say the station's call sign, then identify with your call sign
C	Wait for the station to call CQ, then answer
D	Say "break, break," then say the station's call sign

11. - T2B12

What is the purpose of the color code used on DMR repeater systems?

Select	Answer
A	Defines the minimum signal level required for access
B	Defines the frequency pair to use
C	Identifies the codec used
D	Must match the repeater color code for access

12. - T2C04

What is RACES?

Select	Answer
A	An international radio experimentation society
B	A radio contest held in a short period, sometimes called a “sprint”
C	An emergency organization combining amateur radio and citizens band operators and frequencies
D	An FCC part 97 amateur radio service for civil defense communications during national emergencies

13. - T3A10

What effect does multi-path propagation have on data transmissions?

Select	Answer
A	Transmission rates must be decreased by a factor equal to the number of separate paths observed
B	Error rates are likely to increase
C	No significant changes will occur if the signals are transmitted using FM
D	Transmission rates must be increased by a factor equal to the number of separate paths observed

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C03

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

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

16. - T4A04

How are the transceiver audio input and output connected in a station configured to operate using FT8?

Select	Answer
A	To a computer connected to the FT8converter.com website
B	To a computer running a terminal program and connected to a terminal node controller unit
C	To the audio input and output of a computer running WSJT-X software
D	To an FT8 conversion unit, a keyboard, and a computer monitor

17. - T4B05

What does the scanning function of an FM transceiver do?

Select	Answer
A	Prevents interference to nearby repeaters
B	Checks incoming signal deviation
C	Tunes through a range of frequencies to check for activity
D	Checks for messages left on a digital bulletin board

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Mhos
B	Coulombs
C	Siemens
D	Ohms

19. - T5B10

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

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

20. - T5C05

What is the unit of impedance?

Select	Answer
A	The volt
B	The ampere
C	The ohm
D	The coulomb

21. - T5D12

What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

Select	Answer
A	8 volts
B	20 volts
C	12 volts
D	0.2 volts

22. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Inductance
B	Resistance
C	Field strength
D	Capacitance

23. - T6B12

What are the names of the electrodes of a bipolar junction transistor?

Select	Answer
A	Signal, bias, power
B	Pole one, pole two, output
C	Input, output, supply
D	Emitter, base, collector

24. - T6C10

What is component 3 in figure T-3?

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

25. - T6D04

Which of the following displays an electrical quantity as a numeric value?

Select	Answer
A	Transistor
B	Meter
C	Relay
D	Potentiometer

26. - T7A11

Where is an RF preamplifier installed?

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

27. - T7B05

How can fundamental overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

Select	Answer
A	Switch the transmitter from FM to SSB
B	Block the amateur signal with a filter at the antenna input of the affected receiver
C	Switch the transmitter to a narrow-band mode
D	Block the interfering signal with a filter on the amateur transmitter

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 VTVM
C	A frequency counter
D	A Q meter

29. - T7D11

Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

Select	Answer
A	Ensure that the circuit is operating at the correct frequency
B	Ensure that the circuit is grounded
C	Ensure that the applied voltages are correct
D	Ensure that the circuit is not powered

30. - T8A07

What is a characteristic of single sideband (SSB) compared to FM?

Select	Answer
A	SSB signals are easier to tune in correctly
B	SSB signals have narrower bandwidth
C	All these choices are correct
D	SSB signals are less susceptible to interference

31. - T8B11

Who may receive telemetry from a space station?

Select	Answer
A	A licensed radio amateur with a transmitter equipped for interrogating the satellite
B	A licensed radio amateur who has registered for an access code from AMSAT
C	A licensed radio amateur who has been certified by the protocol developer
D	Anyone

32. - T8C05

What is a grid locator?

Select	Answer
A	An instrument for radio direction finding
B	A letter-number designator assigned to an azimuth and elevation
C	An instrument for neutralizing a final amplifier
D	A letter-number designator assigned to a geographic location

33. - T8D11

What is an ARQ transmission system?

Select	Answer
A	A special transmission format limited to video signals
B	A system used to encrypt command signals to an amateur radio satellite
C	A method of compressing data using autonomous reiterative Q codes prior to final encoding
D	An error correction method in which the receiving station detects errors and sends a request for retransmission

34. - T9A08

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

Select	Answer
A	19
B	112
C	50
D	12

35. - T9B05

What happens as the frequency of a signal in coaxial cable is increased?

Select	Answer
A	The characteristic impedance increases
B	The characteristic impedance decreases
C	The loss increases
D	The loss decreases

Figure T-3