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

2. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	The antenna could contact high-voltage power lines
B	The 60 Hz radiations from the feed line may increase the SWR
C	The antenna will not work properly because of induced voltages
D	All these choices are correct

3. - T0C07

What hazard is created by touching an antenna during a transmission?

Select	Answer
A	RF burn to skin
B	Electrocution
C	All these choices are correct
D	Radiation poisoning

4. - T1A10

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

Select	Answer
A	A radio service using amateur frequencies for emergency management or civil defense communications
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 stations for emergency management or civil defense communications
D	All these choices are correct

5. - T1B06

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

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

6. - T1C07

Which of the following can result in revocation of the station license or suspension of the operator license?

Select	Answer
A	Failure to provide and maintain a correct email address with the FCC
B	Failure to obtain FCC type acceptance prior to using a home-built transmitter
C	Failure to have a copy of your license available at your station
D	Failure to inform the FCC of any changes in the amateur station following performance of an RF safety environmental evaluation

7. - T1D04

Under what conditions is an amateur station authorized to transmit music using a phone emission?

Select	Answer
A	When incidental to an authorized retransmission of manned spacecraft communications
B	When the music produces no spurious emissions
C	When the music is transmitted above 1280 MHz
D	When transmissions are limited to less than three minutes per hour

8. - T1E03

Who must designate the station control operator?

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

9. - T1F10

Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?

Select	Answer
A	The owner of the repeater
B	The control operator of the repeater
C	The control operator of the originating station
D	Both the originating station and the repeater owner

10. - T2A10

What is a band plan, beyond the privileges established by the FCC?

Select	Answer
A	A list of operating schedules
B	A voluntary guideline for using different modes or activities within an amateur band
C	A plan devised by a club to indicate frequency band usage
D	A list of available net frequencies

11. - T2B02

What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

Select	Answer
A	DTMF
B	Tone burst
C	CTCSS
D	Carrier squelch

12. - T2C01

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

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

13. - T3A12

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

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

14. - T3B05

What is the relationship between wavelength and frequency?

Select	Answer
A	Wavelength gets shorter as frequency increases
B	Wavelength and frequency are unrelated
C	Wavelength gets longer as frequency increases
D	Wavelength and frequency increase as path length increases

15. - T3C07

What band is best suited for communicating via meteor scatter?

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

16. - T4A04

How are the transceiver audio input and output connected in a station configured to operate using FT8?

Select	Answer
A	To an FT8 conversion unit, a keyboard, and a computer monitor
B	To a computer connected to the FT8converter.com website
C	To a computer running a terminal program and connected to a terminal node controller unit
D	To the audio input and output of a computer running WSJT-X software

17. - T4B02

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

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

18. - T5A07

Why are metals generally good conductors of electricity?

Select	Answer
A	They have many free protons
B	They have relatively high density
C	All these choices are correct
D	They have many free electrons

19. - T5B11

Which decibel value represents a power increase from 20 watts to 200 watts?

Select	Answer
A	12 dB
B	28 dB
C	18 dB
D	10 dB

20. - T5C11

How much current is required to deliver 120 watts at a voltage of 12 volts DC?

Select	Answer
A	10 amperes
B	0.1 amperes
C	12 amperes
D	132 amperes

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	9600 amperes
B	0.667 amperes
C	1.5 amperes
D	200 amperes

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Inductor
B	Diode
C	Capacitor
D	Varistor

23. - T6B06

How is the cathode lead of a semiconductor diode often marked on the package?

Select	Answer
A	With the word "cathode"
B	With the letter K
C	With the letter C
D	With a stripe

24. - T6C11

What is component 4 in figure T-3?

Select	Answer
A	Ground
B	Antenna
C	Dummy load
D	Transmitter

25. - T6D05

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

Select	Answer
A	Filter
B	Phase inverter
C	Regulator
D	Oscillator

26. - T7A10

What device increases the transmitted output power from a transceiver?

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

27. - T7B09

What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

Select	Answer
A	Be sure all TV feed line coaxial connectors are installed properly
B	Add a preamplifier to the TV antenna input
C	Add a high-pass filter to the TV antenna input
D	Add a low-pass filter to the TV antenna input

28. - T7C01

What is the primary purpose of a dummy load?

Select	Answer
A	To improve the signal-to-noise ratio of a receiver
B	To improve the efficiency of an antenna
C	To prevent transmitting signals over the air when making tests
D	To prevent over-modulation of a transmitter

29. - T7D09

What is the characteristic appearance of a cold tin-lead solder joint?

Select	Answer
A	A rough or lumpy surface
B	Dark black spots
C	A bright or shiny surface
D	Excessive solder

30. - T8A05

Which of the following types of signal has the narrowest bandwidth?

Select	Answer
A	CW
B	Slow-scan TV
C	FM voice
D	SSB voice

31. - T8B08

What is meant by the statement that a satellite is operating in U/V mode?

Select	Answer
A	The satellite operates using ultraviolet frequencies
B	The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
C	The satellite frequencies are usually variable
D	The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band

32. - T8C08

What is the Internet Radio Linking Project (IRLP)?

Select	Answer
A	A technique for measuring signal strength of an amateur transmitter via the internet
B	A system for providing access to websites via amateur radio
C	A system for informing amateurs in real time of the frequency of active DX stations
D	A technique to connect amateur radio systems, such as repeaters, via the internet using Voice Over Internet Protocol (VoIP)

33. - T8D03

What kind of data can be transmitted by APRS?

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

34. - T9A12

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

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

35. - T9B12

What is standing wave ratio (SWR)?

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

Figure T-3