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

2. - T0B05

What is the purpose of a safety wire through a turnbuckle used to tension guy lines?

Select	Answer
A	Secure the guy line if the turnbuckle breaks
B	Provide an ability to measure for proper tensioning
C	Prevent loosening of the turnbuckle from vibration
D	Provide a ground path for lightning strikes

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 transmitting
B	The difference between the PEP and average power output of a transmitter
C	The percentage of time that a transmitter is not transmitting
D	The difference between the lowest power output and the highest power output of a transmitter

4. - T1A09

Who selects a Frequency Coordinator?

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

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	All these choices are correct
C	To allow for calibration error in the transmitter frequency display
D	So that modulation sidebands do not extend beyond the band edge

6. - T1C04

What may happen if the FCC is unable to reach you by email?

Select	Answer
A	Fine and suspension of operator license
B	Revocation of the station license or suspension of the operator license
C	Nothing; there is no such requirement
D	Revocation of access to the license record in the FCC system

7. - T1D05

When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

Select	Answer
A	When selling amateur radio equipment and not on a regular basis
B	Never
C	When no profit is made on the sale
D	When the equipment is not the personal property of either the station licensee, or the control operator, or their close relatives

8. - T1E01

When may an amateur station transmit without a control operator?

Select	Answer
A	When the transmitting station is an auxiliary station
B	When using automatic control, such as in the case of a repeater
C	When the station licensee is away and another licensed amateur is using the station
D	Never

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. - 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 600 kHz
C	Plus or minus 1 MHz
D	Plus or minus 500 kHz

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	Carrier squelch
C	Tone burst
D	CTCSS

12. - T2C11

What is meant by “check” in a radiogram header?

Select	Answer
A	The call sign of the originating station
B	The number of words or word equivalents in the text portion of the message
C	A list of stations that have relayed the message
D	A box on the message form that indicates that the message was received and/or relayed

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

14. - T3B05

What is the relationship between wavelength and frequency?

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

15. - T3C06

What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Select	Answer
A	Tropospheric ducting
B	F2 region refraction
C	Faraday rotation
D	D region refraction

16. - T4A12

What is an electronic keyer?

Select	Answer
A	An interlock to prevent unauthorized use of a radio
B	A device for switching antennas from transmit to receive
C	A device that assists in manual sending of Morse code
D	A device for voice activated switching from receive to transmit

17. - T4B05

What does the scanning function of an FM transceiver do?

Select	Answer
A	Prevents interference to nearby repeaters
B	Checks incoming signal deviation
C	Checks for messages left on a digital bulletin board
D	Tunes through a range of frequencies to check for activity

18. - T5A03

What is the name for the flow of electrons in an electric circuit?

Select	Answer
A	Current
B	Resistance
C	Capacitance
D	Voltage

19. - T5B13

Which is equal to 2425 MHz?

Select	Answer
A	2.425 GHz
B	2425 GHz
C	24.25 GHz
D	0.002425 GHz

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	MH
B	Mhz
C	MHz
D	mh

21. - T5D08

What is the current through a 100-ohm resistor connected across 200 volts?

Select	Answer
A	20,000 amperes
B	100 amperes
C	2 amperes
D	0.5 amperes

22. - T6A10

Which of the following battery chemistries is rechargeable?

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

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Transformer
B	Resistor
C	Reactor
D	Transistor

24. - T6C10

What is component 3 in figure T-3?

Select	Answer
A	Variable inductor
B	Meter
C	Variable capacitor
D	Connector

25. - T6D08

Which of the following is combined with an inductor to make a resonant circuit?

Select	Answer
A	Zener diode
B	Potentiometer
C	Capacitor
D	Resistor

26. - T7A05

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

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

27. - T7B11

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

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

28. - T7C07

What happens to power lost in a feed line?

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

29. - T7D02

How is a voltmeter connected to a component to measure applied voltage?

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

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. - T8B06

Which of the following are inputs to a satellite tracking program?

Select	Answer
A	The Keplerian elements
B	The satellite transmitted power
C	The last observed time of zero Doppler shift
D	All these choices are correct

32. - T8C09

Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

Select	Answer
A	D-STAR
B	EchoLink
C	DMR
D	IRLP

33. - T8D12

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

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

34. - T9A12

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

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

35. - T9B01

What is a benefit of low SWR?

Select	Answer
A	All these choices are correct
B	Reduced television interference
C	Reduced signal loss
D	Less antenna wear

Figure T-3