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. - T0A01

Which of the following is a safety hazard of a 12-volt storage battery?

Select	Answer
A	All these choices are correct
B	Shorting the terminals can cause burns, fire, or an explosion
C	RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas
D	Touching both terminals with the hands can cause electrical shock

2. - T0B03

Under what circumstances is it safe to climb a tower without a helper or observer?

Select	Answer
A	When the work being done is not more than 20 feet above the ground
B	When no electrical work is being performed
C	When no mechanical work is being performed
D	Never

3. - T0C07

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

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

4. - T1A04

How many operator/primary station license grants may be held by any one person?

Select	Answer
A	No more than two
B	One for each band on which the person plans to operate
C	One
D	One for each permanent station location from which the person plans to operate

5. - T1B05

How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

Select	Answer
A	Fast-scan television only
B	Fixed digital message forwarding systems only
C	Spread spectrum only
D	Emergency traffic only

6. - T1C04

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

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

7. - T1D09

When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

Select	Answer
A	When broadcasting communications to or from the space shuttle
B	When such communications are directly related to the immediate safety of human life or protection of property
C	Never
D	Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network

8. - T1E03

Who must designate the station control operator?

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

9. - T1F03

When are you required to transmit your assigned call sign?

Select	Answer
A	At least every 15 minutes during and at the end of a communication
B	At the beginning of each contact, and every 10 minutes thereafter
C	At least once during each transmission
D	At least every 10 minutes during and at the end of a communication

10. - T2A05

How should you respond to a station calling CQ?

Select	Answer
A	Transmit the other station’s call sign followed by your call sign
B	Transmit your call sign followed by the other station’s call sign
C	Transmit a signal report followed by your call sign
D	Transmit "CQ" followed by the other station’s call sign

11. - T2B03

Which of the following describes a linked repeater network?

Select	Answer
A	A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network
B	Multiple repeaters with the same control operator
C	A system of repeaters linked by APRS
D	A single repeater with more than one receiver

12. - T2C02

Which of the following are typical duties of a Net Control Station?

Select	Answer
A	Call the net to order and direct communications between stations checking in
B	Choose the regular net meeting time and frequency
C	Ensure that all stations checking into the net are properly licensed for operation on the net frequency
D	All these choices are correct

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	Nothing significant will happen
C	The modulation sidebands might become inverted
D	Received signal strength is reduced

14. - T3B09

What frequency range is referred to as UHF?

Select	Answer
A	300 to 3000 kHz
B	30 to 300 kHz
C	30 to 300 MHz
D	300 to 3000 MHz

15. - T3C03

What is a characteristic of VHF signals received via auroral backscatter?

Select	Answer
A	They are often received from 10,000 miles or more
B	They occur only during winter nighttime hours
C	They are distorted and signal strength varies considerably
D	They are generally strongest when your antenna is aimed west

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

17. - T4B05

What does the scanning function of an FM transceiver do?

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

18. - T5A05

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

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

19. - T5B08

Which is equal to 1,000,000 picofarads?

Select	Answer
A	1,000,000,000 microfarads
B	1000 microfarads
C	1 microfarad
D	0.001 microfarads

20. - T5C10

How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

Select	Answer
A	14.5 watts
B	0.208 watts
C	4.8 watts
D	30 watts

21. - T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

Select	Answer
A	1.5 volts
B	0.25 volts
C	2.5 volts
D	1 volt

22. - T6A08

What is the function of an SPDT switch?

Select	Answer
A	A single circuit is switched between one of two other circuits
B	Two circuits are each switched between one of two other circuits
C	A single circuit is opened or closed
D	Two circuits are opened or closed

23. - T6B04

Which of the following components can consist of three regions of semiconductor material?

Select	Answer
A	Transistor
B	Alternator
C	Triode
D	Pentagrid converter

24. - T6C08

What is component 9 in figure T-2?

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

25. - T6D11

Which of the following is a resonant or tuned circuit?

Select	Answer
A	A circuit designed to provide high-fidelity audio
B	An inductor and a capacitor in series or parallel
C	A linear voltage regulator
D	A resistor circuit used for reducing standing wave ratio

26. - T7A11

Where is an RF preamplifier installed?

Select	Answer
A	At the output of the transmitter power amplifier
B	At the output of the receiver audio amplifier
C	Between the antenna and receiver
D	Between the transmitter and the antenna tuner

27. - T7B11

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

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

28. - T7C02

Which of the following is used to determine if an antenna is resonant at the desired operating frequency?

Select	Answer
A	A Q meter
B	An antenna analyzer
C	A VTVM
D	A frequency counter

29. - T7D03

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

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

30. - T8A04

Which type of modulation is commonly used for VHF and UHF voice repeaters?

Select	Answer
A	FM or PM
B	PSK
C	SSB
D	AM

31. - T8B06

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

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

32. - T8C06

How is over the air access to IRLP nodes accomplished?

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

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. - T9A08

What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

Select	Answer
A	50
B	12
C	112
D	19

35. - T9B08

Which of the following is a source of loss in coaxial feed line?

Select	Answer
A	Multiple connectors in the line
B	Water intrusion into coaxial connectors
C	High SWR
D	All these choices are correct

Figure T-2