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

2. - T0B10

Which of the following is true when installing grounding conductors used for lightning protection?

Select	Answer
A	Sharp bends must be avoided
B	Wires must be carefully routed with precise right-angle bends
C	Common grounds must be avoided
D	Use only non-insulated wire

3. - T0C13

Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

Select	Answer
A	Anyone who is near an antenna
B	The local zoning board
C	The FCC
D	The station licensee

4. - T1A09

Who selects a Frequency Coordinator?

Select	Answer
A	FCC Regional Field Office
B	Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
C	The FCC Office of Spectrum Management and Coordination Policy
D	The local chapter of the Office of National Council of Independent Frequency Coordinators

5. - T1B06

On which HF bands does a Technician class operator have phone privileges?

Select	Answer
A	10 meter band only
B	None
C	30 meter band only
D	80 meter, 40 meter, 15 meter, and 10 meter bands

6. - T1C09

What is the grace period for renewal if an amateur license expires?

Select	Answer
A	Three years
B	Five years
C	Two years
D	Ten years

7. - T1D07

What types of amateur stations can automatically retransmit the signals of other amateur stations?

Select	Answer
A	Earth, repeater, or space stations
B	Beacon, repeater, or space stations
C	Repeater, auxiliary, or space stations
D	Auxiliary, beacon, or Earth stations

8. - T1E02

Who may be the control operator of a station communicating through an amateur satellite or space station?

Select	Answer
A	Only an Amateur Extra Class operator
B	Any amateur allowed to transmit on the satellite uplink frequency
C	A General class or higher licensee with a satellite operator certification
D	Only an Amateur Extra Class operator who is also an AMSAT member

9. - T1F03

When are you required to transmit your assigned call sign?

Select	Answer
A	At least every 10 minutes during and at the end of a communication
B	At least once during each transmission
C	At the beginning of each contact, and every 10 minutes thereafter
D	At least every 15 minutes during and at the end of a communication

10. - T2A01

What is a common repeater frequency offset in the 2 meter band?

Select	Answer
A	Plus or minus 5 MHz
B	Plus or minus 500 kHz
C	Plus or minus 1 MHz
D	Plus or minus 600 kHz

11. - T2B13

What is the purpose of a squelch function?

Select	Answer
A	Reduce a CW transmitter's key clicks
B	Eliminate parasitic oscillations in an RF amplifier
C	Mute the receiver audio when a signal is not present
D	Reduce interference from impulse noise

12. - T2C09

Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

Select	Answer
A	No
B	Yes, but only in situations involving the immediate safety of human life or protection of property
C	Yes, but only when part of a RACES emergency plan
D	Yes, but only when part of a FEMA emergency plan

13. - T3A02

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

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

14. - T3B07

In addition to frequency, which of the following is used to identify amateur radio bands?

Select	Answer
A	Channel numbers
B	The approximate wavelength in meters
C	Traditional letter/number designators
D	All these choices are correct

15. - T3C04

Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

Select	Answer
A	D region absorption
B	Sporadic E
C	Backscatter
D	Gray-line propagation

16. - T4A10

What function is performed with a transceiver and a digital mode hot spot?

Select	Answer
A	FT8 digital communications via AFSK
B	High-speed digital communications for meteor scatter
C	Communication using digital voice or data systems via the internet
D	RTTY encoding and decoding without a computer

17. - T4B08

What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

Select	Answer
A	Permits monitoring several modes at once by selecting a separate filter for each mode
B	Increases the number of frequencies that can be stored in memory
C	Permits noise or interference reduction by selecting a bandwidth matching the mode
D	Increases the amount of offset between receive and transmit frequencies

18. - T5A02

Electrical power is measured in which of the following units?

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

19. - T5B09

Which decibel value most closely represents a power increase from 5 watts to 10 watts?

Select	Answer
A	3 dB
B	5 dB
C	10 dB
D	2 dB

20. - T5C13

What is the abbreviation for kilohertz?

Select	Answer
A	khz
B	KHZ
C	kHz
D	khZ

21. - T5D07

What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

Select	Answer
A	1.5 amperes
B	200 amperes
C	0.667 amperes
D	9600 amperes

22. - T6A05

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

Select	Answer
A	Potentiometer
B	Capacitor
C	Resistor
D	Oscillator

23. - T6B03

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

Select	Answer
A	Potentiometer
B	Varistor
C	Transistor
D	Thermistor

24. - T6C03

What is component 2 in figure T-1?

Select	Answer
A	Resistor
B	Connector
C	Indicator lamp
D	Transistor

25. - T6D05

What type of circuit controls the amount of voltage from a power supply?

Select	Answer
A	Oscillator
B	Filter
C	Regulator
D	Phase inverter

26. - T7A05

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

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

27. - T7B07

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

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

28. - T7C07

What happens to power lost in a feed line?

Select	Answer
A	It is converted into heat
B	It increases the SWR
C	It distorts the signal
D	It is radiated as harmonics

29. - T7D08

Which of the following types of solder should not be used for radio and electronic applications?

Select	Answer
A	Tin-copper solder
B	Rosin-core solder
C	Acid-core solder
D	Lead-tin solder

30. - T8A10

What is the approximate bandwidth of AM fast-scan TV transmissions?

Select	Answer
A	About 6 MHz
B	More than 10 MHz
C	About 1 MHz
D	About 3 MHz

31. - T8B07

What is Doppler shift in reference to satellite communications?

Select	Answer
A	An observed change in signal frequency caused by relative motion between the satellite and Earth station
B	A mode where the satellite receives signals on one band and transmits on another
C	A special digital communications mode for some satellites
D	A change in the satellite orbit

32. - T8C10

What is required before using the EchoLink system?

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

33. - T8D12

Which of the following best describes an amateur radio mesh network?

Select	Answer
A	A satellite communications network using modified commercial satellite TV hardware
B	An amateur-radio based data network using commercial Wi-Fi equipment with modified firmware
C	A wide-bandwidth digital voice mode employing DMR protocols
D	An internet linking protocol used to network repeaters

34. - T9A12

What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

Select	Answer
A	It eliminates distortion caused by reflected signals
B	It radiates at a very high angle
C	It has more gain than a 1/4-wavelength antenna
D	It has 10 times the power gain of a 1/4 wavelength whip

35. - T9B12

What is standing wave ratio (SWR)?

Select	Answer
A	A measure of how well a load is matched to a transmission line
B	The ratio of amplifier power output to input
C	An indication of the quality of your station’s ground connection
D	The transmitter efficiency ratio

Figure T-1