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. - T0A04

What is the purpose of a fuse in an electrical circuit?

Select	Answer
A	To limit current to prevent shocks
B	All these choices are correct
C	To remove power in case of overload
D	To prevent power supply ripple from damaging a component

2. - T0B04

Which of the following is an important safety precaution to observe when putting up an antenna tower?

Select	Answer
A	Wear a ground strap connected to your wrist at all times
B	Insulate the base of the tower to avoid lightning strikes
C	All these choices are correct
D	Look for and stay clear of any overhead electrical wires

3. - T0C01

What type of radiation are radio signals?

Select	Answer
A	Non-ionizing radiation
B	Gamma radiation
C	Alpha radiation
D	Ionizing radiation

4. - T1A08

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

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

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	So that modulation sidebands do not extend beyond the band edge
C	All these choices are correct
D	To allow for transmitter frequency drift

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

7. - T1D04

Under what conditions is an amateur station authorized to transmit music using a phone emission?

Select	Answer
A	When incidental to an authorized retransmission of manned spacecraft communications
B	When transmissions are limited to less than three minutes per hour
C	When the music produces no spurious emissions
D	When the music is transmitted above 1280 MHz

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

9. - T1F05

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

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

10. - T2A12

What should you do before calling CQ?

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

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	Must match the repeater color code for access
D	Identifies the codec used

12. - T2C03

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

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

13. - T3A02

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

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

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	All these choices are correct
D	The approximate wavelength in meters

15. - T3C09

What is generally the best time for long-distance 10 meter band propagation via the F region?

Select	Answer
A	From dawn to shortly after sunset during periods of high sunspot activity
B	From shortly after sunset to dawn during periods of high sunspot activity
C	From dawn to shortly after sunset during periods of low sunspot activity
D	From shortly after sunset to dawn during periods of low sunspot activity

16. - T4A01

Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

Select	Answer
A	24.0 volts at 12 amperes
B	13.8 volts at 4 amperes
C	24.0 volts at 4 amperes
D	13.8 volts at 12 amperes

17. - T4B09

How is a specific group of stations selected on a digital voice transceiver?

Select	Answer
A	By entering the group’s identification code
B	By activating automatic identification
C	By retrieving the frequencies from transceiver memory
D	By enabling the group’s CTCSS tone

18. - T5A02

Electrical power is measured in which of the following units?

Select	Answer
A	Watt-hours
B	Watts
C	Amperes
D	Volts

19. - T5B01

How many milliamperes is 1.5 amperes?

Select	Answer
A	1500 milliamperes
B	15,000 milliamperes
C	150 milliamperes
D	15 milliamperes

20. - T5C03

What describes the ability to store energy in a magnetic field?

Select	Answer
A	Capacitance
B	Inductance
C	Admittance
D	Resistance

21. - T5D08

What is the current through a 100-ohm resistor connected across 200 volts?

Select	Answer
A	0.5 amperes
B	100 amperes
C	2 amperes
D	20,000 amperes

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Diode
B	Varistor
C	Capacitor
D	Inductor

23. - T6B02

What electronic component allows current to flow in only one direction?

Select	Answer
A	Driven element
B	Diode
C	Resistor
D	Fuse

24. - T6C09

What is component 4 in figure T-2?

Select	Answer
A	Double-pole switch
B	Variable inductor
C	Transformer
D	Potentiometer

25. - T6D01

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

Select	Answer
A	Reflector
B	Amplifier
C	Rectifier
D	Transformer

26. - T7A04

Which term describes the ability of a receiver to discriminate between multiple signals?

Select	Answer
A	Sensitivity
B	Selectivity
C	Discrimination ratio
D	Harmonic distortion

27. - T7B01

What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

Select	Answer
A	Talk farther away from the microphone
B	Change to a higher power level
C	Talk louder into the microphone
D	Let the transceiver cool off

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 requires special techniques to prevent moisture in the cable
C	It cannot be used for VHF or UHF antennas
D	It has more loss per foot

29. - T7D10

What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

Select	Answer
A	Alternating between open and short circuit
B	Steady full-scale reading
C	Decreasing resistance with time
D	Increasing resistance with time

30. - T8A12

Which of the following is a disadvantage of FM compared with single sideband?

Select	Answer
A	Only one signal can be received at a time
B	Voice quality is poorer
C	All these choices are correct
D	FM signals are harder to tune

31. - T8B06

Which of the following are inputs to a satellite tracking program?

Select	Answer
A	The Keplerian elements
B	All these choices are correct
C	The satellite transmitted power
D	The last observed time of zero Doppler shift

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 system for providing access to websites via amateur radio
C	A technique for measuring signal strength of an amateur transmitter via the internet
D	A technique to connect amateur radio systems, such as repeaters, via the internet using Voice Over Internet Protocol (VoIP)

33. - T8D03

What kind of data can be transmitted by APRS?

Select	Answer
A	Text messages
B	Weather data
C	GPS position data
D	All these choices are correct

34. - T9A06

Which of the following types of antenna offers the greatest gain?

Select	Answer
A	Yagi
B	Isotropic
C	5/8 wave vertical
D	J pole

35. - T9B04

What is the major function of an antenna tuner (antenna coupler)?

Select	Answer
A	It helps a receiver automatically tune in weak stations
B	It matches the antenna system impedance to the transceiver's output impedance
C	It allows an antenna to be used on both transmit and receive
D	It automatically selects the proper antenna for the frequency band being used

Figure T-2