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

2. - T0B10

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

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

3. - T0C05

Why do exposure limits vary with frequency?

Select	Answer
A	Lower frequency RF fields have more energy than higher frequency fields
B	Higher frequency RF fields are transient in nature
C	Lower frequency RF fields do not penetrate the human body
D	The human body absorbs more RF energy at some frequencies than at others

4. - T1A07

What is the FCC Part 97 definition of a space station?

Select	Answer
A	An amateur station located more than 50 km above Earth's surface
B	A manned satellite orbiting Earth
C	Any satellite orbiting Earth
D	An amateur station using amateur radio satellites for relay of signals

5. - T1B03

Which frequency is in the 6 meter amateur band?

Select	Answer
A	49.00 MHz
B	28.50 MHz
C	52.525 MHz
D	222.15 MHz

6. - T1C05

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

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

7. - T1D06

What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

Select	Answer
A	Any such language is prohibited
B	There is no such prohibition
C	The FCC maintains a list of words that are not permitted to be used on amateur frequencies
D	The ITU maintains a list of words that are not permitted to be used on amateur frequencies

8. - T1E08

Which of the following is an example of automatic control?

Select	Answer
A	Using a computer or other device to identify automatically
B	Controlling a station over the internet
C	Repeater operation
D	Using a computer or other device to send CW automatically

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	Message forwarding station
D	Beacon station

10. - T2A07

What is meant by "repeater offset”?

Select	Answer
A	The number of simultaneous transmit frequencies used by a repeater
B	The repeater station identification is done on a separate frequency
C	The difference between a repeater’s transmit and receive frequencies
D	The repeater has a time delay to prevent interference

11. - T2B06

What type of signaling uses pairs of audio tones?

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

12. - T2C05

What does the term “traffic” refer to in net operation?

Select	Answer
A	Operation by mobile or portable stations
B	The number of stations checking in and out of a net
C	Requests to activate the net by a served agency
D	Messages exchanged by net stations

13. - T3A04

What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

Select	Answer
A	Signals have an echo effect
B	Received signal strength is reduced
C	The modulation sidebands might become inverted
D	Nothing significant will happen

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 inversely proportional to its wavelength
D	Speed that increases as the frequency increases

15. - T3C11

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

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

16. - T4A11

Where should the negative power return of a mobile transceiver be connected in a vehicle?

Select	Answer
A	Through the transceiver’s mounting bracket
B	At the 12 volt battery chassis ground
C	To any metal part of the vehicle
D	At the antenna mount

17. - T4B07

What does a DMR “code plug” contain?

Select	Answer
A	The DMR software version
B	Your call sign in CW for automatic identification
C	Access information for repeaters and talkgroups
D	The codec for digitizing audio

18. - T5A10

Which term describes the rate at which electrical energy is used?

Select	Answer
A	Power
B	Voltage
C	Current
D	Resistance

19. - T5B10

Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

Select	Answer
A	-9 dB
B	-1 dB
C	-6 dB
D	-3 dB

20. - T5C06

What does the abbreviation “RF” mean?

Select	Answer
A	Radio frequency signals of all types
B	The resonant frequency of a tuned circuit
C	The real frequency transmitted as opposed to the apparent frequency
D	Reflective force in antenna transmission lines

21. - T5D05

What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

Select	Answer
A	18 ohms
B	0.125 ohms
C	8 ohms
D	13.5 ohms

22. - T6A10

Which of the following battery chemistries is rechargeable?

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

23. - T6B03

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

Select	Answer
A	Varistor
B	Transistor
C	Thermistor
D	Potentiometer

24. - T6C08

What is component 9 in figure T-2?

Select	Answer
A	Variable capacitor
B	Variable inductor
C	Variable transformer
D	Variable resistor

25. - T6D06

What component changes 120 V AC power to a lower AC voltage for other uses?

Select	Answer
A	Diode
B	Transistor
C	Transformer
D	Variable capacitor

26. - T7A10

What device increases the transmitted output power from a transceiver?

Select	Answer
A	All these choices are correct
B	A voltage divider
C	An RF power amplifier
D	An impedance network

27. - T7B11

What is a symptom of RF feedback in a transmitter or transceiver?

Select	Answer
A	Excessive SWR at the antenna connection
B	The transmitter will not stay on the desired frequency
C	Reports of garbled, distorted, or unintelligible voice transmissions
D	Frequent blowing of power supply fuses

28. - T7C03

What does a dummy load consist of?

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

29. - T7D08

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

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

30. - T8A06

Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

Select	Answer
A	Suppressed sideband
B	Upper sideband
C	Lower sideband
D	Inverted sideband

31. - T8B05

What is a satellite beacon?

Select	Answer
A	The primary transmit antenna on the satellite
B	A reflective surface on the satellite
C	An indicator light that shows where to point your antenna
D	A transmission from a satellite that contains status information

32. - T8C05

What is a grid locator?

Select	Answer
A	A letter-number designator assigned to an azimuth and elevation
B	An instrument for radio direction finding
C	An instrument for neutralizing a final amplifier
D	A letter-number designator assigned to a geographic location

33. - T8D11

What is an ARQ transmission system?

Select	Answer
A	An error correction method in which the receiving station detects errors and sends a request for retransmission
B	A method of compressing data using autonomous reiterative Q codes prior to final encoding
C	A system used to encrypt command signals to an amateur radio satellite
D	A special transmission format limited to video signals

34. - T9A12

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

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

35. - T9B07

Which of the following is true of PL-259 type coax connectors?

Select	Answer
A	They are a bayonet-type connector
B	They are preferred for microwave operation
C	They are commonly used at HF and VHF frequencies
D	They are watertight

Figure T-2