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. - T0A05

Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

Select	Answer
A	The larger fuse would be likely to blow because it is rated for higher current
B	The power supply ripple would greatly increase
C	Excessive current could cause a fire
D	All these choices are correct

2. - T0B07

Which of the following is an important safety rule to remember when using a crank-up tower?

Select	Answer
A	All these choices are correct
B	This type of tower must never be painted
C	This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed
D	This type of tower must never be grounded

3. - T0C11

What is the definition of duty cycle during the averaging time for RF exposure?

Select	Answer
A	The percentage of time that a transmitter is not transmitting
B	The difference between the PEP and average power output of a transmitter
C	The percentage of time that a transmitter is transmitting
D	The difference between the lowest power output and the highest power output of a transmitter

4. - T1A06

What is the FCC Part 97 definition of a beacon?

Select	Answer
A	A government transmitter marking the amateur radio band edges
B	An amateur station transmitting communications for the purposes of observing propagation or related experimental activities
C	A bulletin sent by the FCC to announce a national emergency
D	A continuous transmission of weather information authorized in the amateur bands by the National Weather Service

5. - T1B09

Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

Select	Answer
A	To allow for calibration error in the transmitter frequency display
B	To allow for transmitter frequency drift
C	All these choices are correct
D	So that modulation sidebands do not extend beyond the band edge

6. - T1C07

Which of the following can result in revocation of the station license or suspension of the operator license?

Select	Answer
A	Failure to inform the FCC of any changes in the amateur station following performance of an RF safety environmental evaluation
B	Failure to have a copy of your license available at your station
C	Failure to provide and maintain a correct email address with the FCC
D	Failure to obtain FCC type acceptance prior to using a home-built transmitter

7. - T1D11

When may an amateur station transmit without identifying on the air?

Select	Answer
A	When transmitting signals to control model craft
B	When the transmissions are of a brief nature to make station adjustments
C	When the transmissions are unmodulated
D	When the transmitted power level is below 1 watt

8. - T1E09

Which of the following are required for remote control operation?

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

9. - T1F05

What method of call sign identification is required for a station transmitting phone signals?

Select	Answer
A	Send the call sign using a CW or phone emission
B	Send the call sign followed by the indicator RPT
C	Send the call sign using only a phone emission
D	Send the call sign followed by the indicator R

10. - T2A06

Which of the following is required when making on-the-air test transmissions?

Select	Answer
A	Notify the FCC of the transmissions
B	All these choices are correct
C	Conduct tests only between 10 p.m. and 6 a.m. local time
D	Identify the transmitting station

11. - T2B08

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

Select	Answer
A	Both stations should choose another frequency to avoid conflict
B	The stations should negotiate continued use of the frequency
C	Use subaudible tones so both stations can share the frequency
D	Interference is inevitable, so no action is required

12. - T2C06

What is the Amateur Radio Emergency Service (ARES)?

Select	Answer
A	A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
B	A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
C	A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
D	A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies

13. - T3A12

What is the effect of fog and rain on signals in the 10 meter and 6 meter bands?

Select	Answer
A	Absorption
B	Range increase
C	Deflection
D	There is little effect

14. - T3B05

What is the relationship between wavelength and frequency?

Select	Answer
A	Wavelength and frequency are unrelated
B	Wavelength and frequency increase as path length increases
C	Wavelength gets shorter as frequency increases
D	Wavelength gets longer as frequency increases

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

16. - T4A11

Where should the negative power return of a mobile transceiver be connected in a vehicle?

Select	Answer
A	Through the transceiver’s mounting bracket
B	At the 12 volt battery chassis ground
C	To any metal part of the vehicle
D	At the antenna mount

17. - T4B06

Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

Select	Answer
A	The AGC or limiter
B	The bandwidth selection
C	The tone squelch
D	The RIT or Clarifier

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Coulombs
B	Siemens
C	Ohms
D	Mhos

19. - T5B11

Which decibel value represents a power increase from 20 watts to 200 watts?

Select	Answer
A	10 dB
B	18 dB
C	12 dB
D	28 dB

20. - T5C04

What is the unit of inductance?

Select	Answer
A	The ohm
B	The coulomb
C	The farad
D	The henry

21. - T5D11

What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

Select	Answer
A	1 volt
B	11 volts
C	9 volts
D	10 volts

22. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Resistance
B	Inductance
C	Field strength
D	Capacitance

23. - T6B05

What type of transistor has a gate, drain, and source?

Select	Answer
A	Varistor
B	Field-effect
C	Bipolar junction
D	Tesla-effect

24. - T6C07

What is component 8 in figure T-2?

Select	Answer
A	Regulator IC
B	Inductor
C	Light emitting diode
D	Resistor

25. - T6D01

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

Select	Answer
A	Reflector
B	Rectifier
C	Transformer
D	Amplifier

26. - T7A10

What device increases the transmitted output power from a transceiver?

Select	Answer
A	A voltage divider
B	All these choices are correct
C	An impedance network
D	An RF power amplifier

27. - T7B07

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

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

28. - T7C08

Which instrument can be used to determine SWR?

Select	Answer
A	Ohmmeter
B	Directional wattmeter
C	Iambic pentameter
D	Voltmeter

29. - T7D09

What is the characteristic appearance of a cold tin-lead solder joint?

Select	Answer
A	Excessive solder
B	A bright or shiny surface
C	Dark black spots
D	A rough or lumpy surface

30. - T8A11

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

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

31. - T8B10

What is a LEO satellite?

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

32. - T8C01

Which of the following methods is used to locate sources of noise interference or jamming?

Select	Answer
A	Doppler radar
B	Phase locking
C	Echolocation
D	Radio direction finding

33. - T8D06

What does the abbreviation "PSK" mean?

Select	Answer
A	Packet Short Keying
B	Pulse Shift Keying
C	Phased Slide Keying
D	Phase Shift Keying

34. - T9A10

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

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

35. - T9B09

What can cause erratic changes in SWR?

Select	Answer
A	Local thunderstorm
B	Over-modulation
C	Overload from a strong local station
D	Loose connection in the antenna or feed line

Figure T-2