US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Anonymous User

US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - T0A11

What hazard exists in a power supply immediately after turning it off?

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

2. - T0B01

Which of the following is good practice when installing ground wires on a tower for lightning protection?

Select	Answer
A	Put a drip loop in the ground connection to prevent water damage to the ground system
B	Ensure that connections are short and direct
C	All these choices are correct
D	Make sure all ground wire bends are right angles

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 percentage of time that a transmitter is transmitting
C	The difference between the PEP and average power output of a transmitter
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	An amateur station transmitting communications for the purposes of observing propagation or related experimental activities
B	A continuous transmission of weather information authorized in the amateur bands by the National Weather Service
C	A bulletin sent by the FCC to announce a national emergency
D	A government transmitter marking the amateur radio band edges

5. - T1B06

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

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

6. - T1C10

How soon after passing the examination for your first amateur radio license may you transmit on the amateur radio bands?

Select	Answer
A	As soon as your operator/station license grant appears on the ARRL website
B	As soon as your operator/station license grant appears in the FCC’s license database
C	Immediately on receiving your Certificate of Successful Completion of Examination (CSCE)
D	As soon as you receive your license in the mail from the FCC

7. - T1D11

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

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

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

Select	Answer
A	The frequency authorized by the frequency coordinator
B	The frequencies printed on the license grant
C	The highest class of operator license held by anyone on the premises
D	The class of operator license held by the control operator

9. - T1F08

What is the definition of third party communications?

Select	Answer
A	A message from a control operator to another amateur station control operator on behalf of another person
B	Amateur radio communications where three stations are in communications with one another
C	Operation when the transmitting equipment is licensed to a person other than the control operator
D	Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments

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. - T2B10

Which Q signal indicates that you are receiving interference from other stations?

Select	Answer
A	QSB
B	QTH
C	QRN
D	QRM

12. - T2C09

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

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

13. - T3A03

What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

Select	Answer
A	Right-hand circular
B	Left-hand circular
C	Horizontal
D	Vertical

14. - T3B11

What is the approximate velocity of a radio wave in free space?

Select	Answer
A	300,000,000 miles per hour
B	150,000 miles per hour
C	300,000,000 meters per second
D	150,000 meters per second

15. - T3C11

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

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

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	RTTY encoding and decoding without a computer
D	Communication using digital voice or data systems via the internet

17. - T4B08

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

Select	Answer
A	Increases the amount of offset between receive and transmit frequencies
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	Permits monitoring several modes at once by selecting a separate filter for each mode

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Farad
B	Henry
C	Tesla
D	Hertz

19. - T5B04

Which is equal to one microvolt?

Select	Answer
A	One one-millionth of a volt
B	One one-thousandth of a volt
C	One million volts
D	One thousand kilovolts

20. - T5C03

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

Select	Answer
A	Admittance
B	Resistance
C	Capacitance
D	Inductance

21. - T5D09

What is the current through a 24-ohm resistor connected across 240 volts?

Select	Answer
A	24,000 amperes
B	10 amperes
C	216 amperes
D	0.1 amperes

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. - T6B11

What is the term that describes a device's ability to amplify a signal?

Select	Answer
A	Gain
B	Forward resistance
C	Forward voltage drop
D	On resistance

24. - T6C06

What is component 6 in figure T-2?

Select	Answer
A	Regulator IC
B	Capacitor
C	Transistor
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	Rectifier
C	Amplifier
D	Reflector

26. - T7A04

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

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

27. - T7B04

Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

Select	Answer
A	Low-pass filter
B	Band-pass filter
C	Ferrite choke
D	Preamplifier

28. - T7C06

What does an SWR reading of 4:1 indicate?

Select	Answer
A	Impedance mismatch
B	Loss of -4 dB
C	Good impedance match
D	Gain of +4 dB

29. - T7D04

Which instrument is used to measure electric current?

Select	Answer
A	A voltmeter
B	An ammeter
C	An ohmmeter
D	An electrometer

30. - T8A10

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

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

31. - T8B01

What telemetry information is typically transmitted by satellite beacons?

Select	Answer
A	Health and status of the satellite
B	The signal strength of received signals
C	Time of day accurate to plus or minus 1/10 second
D	All these choices are correct

32. - T8C06

How is over the air access to IRLP nodes accomplished?

Select	Answer
A	By obtaining a password that is sent via voice to the node
B	By entering the proper internet password
C	By using DTMF signals
D	By using CTCSS tone codes

33. - T8D01

Which of the following is a digital communications mode?

Select	Answer
A	Packet radio
B	All these choices are correct
C	IEEE 802.11
D	FT8

34. - T9A01

What is a beam antenna?

Select	Answer
A	An omnidirectional antenna invented by Clarence Beam
B	An antenna built from aluminum I-beams
C	An antenna that reverses the phase of received signals
D	An antenna that concentrates signals in one direction

35. - T9B09

What can cause erratic changes in SWR?

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

Figure T-2