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

2. - T0B10

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

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

3. - T0C02

At which of the following frequencies does maximum permissible exposure have the lowest value?

Select	Answer
A	440 MHz
B	3.5 MHz
C	1296 MHz
D	50 MHz

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	A bulletin sent by the FCC to announce a national emergency
C	An amateur station transmitting communications for the purposes of observing propagation or related experimental activities
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 transmitter frequency drift
B	So that modulation sidebands do not extend beyond the band edge
C	To allow for calibration error in the transmitter frequency display
D	All these choices are correct

6. - T1C02

Who may select a desired call sign under the vanity call sign rules?

Select	Answer
A	Only a licensed amateur who has been licensed continuously for more than 10 years
B	Only a licensed amateur with a General or Amateur Extra Class license
C	Any licensed amateur
D	Only a licensed amateur with an Amateur Extra Class license

7. - T1D03

When is it permissible to transmit messages encoded to obscure their meaning?

Select	Answer
A	Only when transmitting control commands to space stations or radio control craft
B	Never
C	Only when transmitting certain approved digital codes
D	Only during contests

8. - T1E09

Which of the following are required for remote control operation?

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

9. - T1F11

Which of the following is a requirement for the issuance of a club station license grant?

Select	Answer
A	The trustee must have an Amateur Extra Class operator license grant
B	The club must have at least four members
C	The club must be registered with the American Radio Relay League
D	All these choices are correct

10. - T2A08

What is the meaning of the procedural signal “CQ”?

Select	Answer
A	Calling any station
B	Only the called station should transmit
C	Call on the quarter hour
D	Test transmission, no reply expected

11. - T2B10

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

Select	Answer
A	QRN
B	QRM
C	QSB
D	QTH

12. - T2C01

When do FCC rules NOT apply to the operation of an amateur station?

Select	Answer
A	When operating under special ARES rules
B	When operating a RACES station
C	When operating under special FEMA rules
D	FCC rules always apply

13. - T3A12

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

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

14. - T3B04

What is the velocity of a radio wave traveling through free space?

Select	Answer
A	Speed of light
B	Speed of sound
C	Speed that increases as the frequency increases
D	Speed inversely proportional to its wavelength

15. - T3C07

What band is best suited for communicating via meteor scatter?

Select	Answer
A	2 meters
B	33 centimeters
C	6 meters
D	70 centimeters

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	Receive and transmit mode, status, and location
D	NMEA GPS location and DC power

17. - T4B10

Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

Select	Answer
A	2400 Hz
B	500 Hz
C	5000 Hz
D	1000 Hz

18. - T5A05

What is the electrical term for the force that causes electron flow?

Select	Answer
A	Voltage
B	Ampere-hours
C	Inductance
D	Capacitance

19. - T5B03

Which is equal to one kilovolt?

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

20. - T5C02

What is the unit of capacitance?

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

21. - T5D09

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

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

22. - T6A10

Which of the following battery chemistries is rechargeable?

Select	Answer
A	Lithium-ion
B	All these choices are correct
C	Nickel-metal hydride
D	Lead-acid

23. - T6B02

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

Select	Answer
A	Diode
B	Fuse
C	Driven element
D	Resistor

24. - T6C07

What is component 8 in figure T-2?

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

25. - T6D05

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

Select	Answer
A	Phase inverter
B	Regulator
C	Filter
D	Oscillator

26. - T7A04

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

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

27. - T7B10

What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

Select	Answer
A	Your transmitter is slightly off frequency
B	You are in a bad location
C	Your batteries are running low
D	All these choices are correct

28. - T7C03

What does a dummy load consist of?

Select	Answer
A	A non-inductive resistor mounted on a heat sink
B	A 50-ohm reactance used to terminate a transmission line
C	A low-voltage power supply and a DC relay
D	A high-gain amplifier and a TR switch

29. - T7D03

When configured to measure current, how is a multimeter connected to a component?

Select	Answer
A	In phase
B	In quadrature
C	In series
D	In parallel

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. - T8B12

Which of the following is a way to determine whether your satellite uplink power is neither too low nor too high?

Select	Answer
A	Check your signal strength report in the telemetry data
B	Listen for distortion on your downlink signal
C	All these choices are correct
D	Your signal strength on the downlink should be about the same as the beacon

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 CTCSS tone codes
D	By using DTMF signals

33. - T8D05

Which of the following is an application of APRS?

Select	Answer
A	Providing voice over internet connection between repeaters
B	Providing information on the number of stations signed into a repeater
C	Showing automatically the number of packets transmitted via PACTOR during a specific time interval
D	Providing real-time tactical digital communications in conjunction with a map showing the locations of stations

34. - T9A02

Which of the following describes a type of antenna loading?

Select	Answer
A	Electrically lengthening by inserting inductors in radiating elements
B	Installing a spring in the base of a mobile vertical antenna to make it more flexible
C	Strengthening the radiating elements of a beam antenna to better resist wind damage
D	Inserting a resistor in the radiating portion of the antenna to make it resonant

35. - T9B12

What is standing wave ratio (SWR)?

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

Figure T-2