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. - T0A06

What is a good way to guard against electrical shock at your station?

Select	Answer
A	Install mechanical interlocks in high-voltage circuits
B	All these choices are correct
C	Use three-wire cords and plugs for all AC powered equipment
D	Connect all AC powered station equipment to a common safety ground

2. - T0B02

What is required when climbing an antenna tower?

Select	Answer
A	Use appropriate tie-off to the tower at all times
B	Have sufficient training on safe tower climbing techniques
C	All these choices are correct
D	Always wear an approved climbing harness

3. - T0C04

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

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

4. - T1A10

What is the Radio Amateur Civil Emergency Service (RACES)?

Select	Answer
A	All these choices are correct
B	An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization
C	A radio service using amateur frequencies for emergency management or civil defense communications
D	A radio service using amateur stations for emergency management or civil defense communications

5. - T1B08

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

Select	Answer
A	International communications 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	Digital transmissions are not permitted in those segments

6. - T1C05

Which of the following is a valid Technician class call sign format?

Select	Answer
A	All these choices are correct
B	KA1X
C	KF1XXX
D	W1XX

7. - T1D09

When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

Select	Answer
A	Never
B	When such communications are directly related to the immediate safety of human life or protection of property
C	Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
D	When broadcasting communications to or from the space shuttle

8. - T1E03

Who must designate the station control operator?

Select	Answer
A	Any licensed operator
B	The FCC
C	The station licensee
D	The frequency coordinator

9. - T1F09

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

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

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	Say "break, break," then say the station's call sign
D	Wait for the station to call CQ, then answer

11. - T2B06

What type of signaling uses pairs of audio tones?

Select	Answer
A	CTCSS
B	D-STAR
C	GPRS
D	DTMF

12. - T2C02

Which of the following are typical duties of a Net Control Station?

Select	Answer
A	Call the net to order and direct communications between stations checking in
B	Choose the regular net meeting time and frequency
C	All these choices are correct
D	Ensure that all stations checking into the net are properly licensed for operation on the net frequency

13. - T3A08

What is a likely cause of irregular fading of signals propagated by the ionosphere?

Select	Answer
A	Random combining of signals arriving via different paths
B	Frequency shift due to Faraday rotation
C	Interference from thunderstorms
D	Intermodulation distortion

14. - T3B09

What frequency range is referred to as UHF?

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

15. - T3C11

Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

Select	Answer
A	Radio waves are not blocked by dust particles
B	The atmosphere refracts radio waves slightly
C	Radio waves are blocked by dust particles
D	Radio signals move somewhat faster than the speed of light

16. - T4A06

What signals are used in a computer-radio interface for digital mode operation?

Select	Answer
A	Receive audio, transmit audio, and transmitter keying
B	Antenna and RF power
C	NMEA GPS location and DC power
D	Receive and transmit mode, status, and location

17. - T4B02

Which of the following can be used to enter a transceiver’s operating frequency?

Select	Answer
A	All these choices are correct
B	The Automatic Frequency Control
C	The keypad or VFO knob
D	The CTCSS or DTMF encoder

18. - T5A03

What is the name for the flow of electrons in an electric circuit?

Select	Answer
A	Voltage
B	Current
C	Resistance
D	Capacitance

19. - T5B08

Which is equal to 1,000,000 picofarads?

Select	Answer
A	1 microfarad
B	1000 microfarads
C	1,000,000,000 microfarads
D	0.001 microfarads

20. - T5C05

What is the unit of impedance?

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

21. - T5D03

What formula is used to calculate resistance in a circuit?

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

22. - T6A08

What is the function of an SPDT switch?

Select	Answer
A	Two circuits are each switched between one of two other circuits
B	A single circuit is opened or closed
C	Two circuits are opened or closed
D	A single circuit is switched between one of two other circuits

23. - T6B03

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

Select	Answer
A	Potentiometer
B	Transistor
C	Thermistor
D	Varistor

24. - T6C07

What is component 8 in figure T-2?

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

25. - T6D01

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

Select	Answer
A	Transformer
B	Reflector
C	Amplifier
D	Rectifier

26. - T7A05

What is the name of a circuit that generates a signal at a specific frequency?

Select	Answer
A	Reactance modulator
B	Oscillator
C	Phase modulator
D	Low-pass filter

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	Using double-shielded coaxial cable
C	Installing an RF preamplifier
D	Installing bypass capacitors on the microphone cable

28. - T7C09

Which of the following causes failure of coaxial cables?

Select	Answer
A	Solder flux contamination
B	Operation at 100% duty cycle for an extended period
C	Rapid fluctuation in transmitter output power
D	Moisture contamination

29. - T7D06

Which of the following can damage a multimeter?

Select	Answer
A	Attempting to measure voltage when using the resistance setting
B	Attempting to measure resistance using the voltage setting
C	Not allowing it to warm up properly
D	Failing to connect one of the probes to ground

30. - T8A07

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

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

31. - T8B11

Who may receive telemetry from a space station?

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

32. - T8C10

What is required before using the EchoLink system?

Select	Answer
A	Register your call sign and provide proof of license
B	Purchase a license to use the EchoLink software
C	Complete the required EchoLink training
D	All these choices are correct

33. - T8D03

What kind of data can be transmitted by APRS?

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

34. - T9A05

Which of the following increases the resonant frequency of a dipole antenna?

Select	Answer
A	Adding capacitive loading to the ends of the radiating wires
B	Inserting coils in series with radiating wires
C	Shortening it
D	Lengthening it

35. - T9B10

What is the electrical difference between RG-58 and RG-213 coaxial cable?

Select	Answer
A	RG-213 cable has less loss at a given frequency
B	There is no significant difference between the two types
C	RG-58 cable has two shields
D	RG-58 cable can handle higher power levels

Figure T-2