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. - T0B06

What is the minimum safe distance from a power line to allow when installing an antenna?

Select	Answer
A	Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
B	The height of the power line above ground
C	Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
D	1/2 wavelength at the operating frequency

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	The human body absorbs more RF energy at some frequencies than at others
D	Lower frequency RF fields do not penetrate the human body

4. - T1A11

When is willful interference to other amateur radio stations permitted?

Select	Answer
A	At no time
B	At any time, stations in the Amateur Radio Service are not protected from willful interference
C	When making short test transmissions
D	To stop another amateur station that is breaking the FCC rules

5. - T1B02

Which amateurs may contact the International Space Station (ISS) on VHF bands?

Select	Answer
A	Any amateur holding a General class or higher license who has applied for and received approval from NASA
B	Any amateur holding a Technician class or higher license
C	Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
D	Any amateur holding a General class or higher license

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 access to the license record in the FCC system
C	Revocation of the station license or suspension of the operator license
D	Nothing; there is no such requirement

7. - T1D10

How does the FCC define broadcasting for the Amateur Radio Service?

Select	Answer
A	Two-way transmissions by amateur stations
B	Transmission of messages directed only to amateur operators
C	Transmissions intended for reception by the general public
D	Any transmission made by the licensed station

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

Select	Answer
A	The frequency authorized by the frequency coordinator
B	The highest class of operator license held by anyone on the premises
C	The frequencies printed on the license grant
D	The class of operator license held by the control operator

9. - T1F09

What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

Select	Answer
A	Message forwarding station
B	Beacon station
C	Repeater station
D	Earth station

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

11. - T2B03

Which of the following describes a linked repeater network?

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

12. - T2C07

Which of the following is standard practice when you participate in a net?

Select	Answer
A	All these choices are correct
B	Record the time of each of your transmissions
C	Unless you are reporting an emergency, transmit only when directed by the net control station
D	When first responding to the net control station, transmit your call sign, name, and address as in the FCC database

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	Received signal strength is reduced
D	The modulation sidebands might become inverted

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C04

Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

Select	Answer
A	Sporadic E
B	Backscatter
C	Gray-line propagation
D	D region absorption

16. - T4A01

Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

Select	Answer
A	13.8 volts at 4 amperes
B	24.0 volts at 4 amperes
C	24.0 volts at 12 amperes
D	13.8 volts at 12 amperes

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	All these choices are correct
C	They have many free electrons
D	They have relatively high density

19. - T5B09

Which decibel value most closely represents a power increase from 5 watts to 10 watts?

Select	Answer
A	10 dB
B	5 dB
C	3 dB
D	2 dB

20. - T5C02

What is the unit of capacitance?

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

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	0.667 amperes
B	1.5 amperes
C	9600 amperes
D	200 amperes

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Varistor
B	Diode
C	Capacitor
D	Inductor

23. - T6B11

What is the term that describes a device's ability to amplify a signal?

Select	Answer
A	Gain
B	Forward voltage drop
C	Forward resistance
D	On resistance

24. - T6C04

What is component 3 in figure T-1?

Select	Answer
A	Lamp
B	Resistor
C	Ground symbol
D	Transistor

25. - T6D04

Which of the following displays an electrical quantity as a numeric value?

Select	Answer
A	Relay
B	Meter
C	Transistor
D	Potentiometer

26. - T7A07

What is the function of a transceiver’s PTT input?

Select	Answer
A	Switches transceiver from receive to transmit when grounded
B	Input for a preamplifier tuning tone
C	Input for a key used to send CW
D	Provides a transmit tuning tone when grounded

27. - T7B01

What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

Select	Answer
A	Change to a higher power level
B	Talk farther away from the microphone
C	Talk louder into the microphone
D	Let the transceiver cool off

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 prevent transmitting signals over the air when making tests
C	To improve the efficiency of an antenna
D	To prevent over-modulation of a transmitter

29. - T7D06

Which of the following can damage a multimeter?

Select	Answer
A	Not allowing it to warm up properly
B	Attempting to measure voltage when using the resistance setting
C	Attempting to measure resistance using the voltage setting
D	Failing to connect one of the probes to ground

30. - T8A04

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

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

31. - T8B11

Who may receive telemetry from a space station?

Select	Answer
A	A licensed radio amateur who has been certified by the protocol developer
B	A licensed radio amateur with a transmitter equipped for interrogating the satellite
C	A licensed radio amateur who has registered for an access code from AMSAT
D	Anyone

32. - T8C10

What is required before using the EchoLink system?

Select	Answer
A	Purchase a license to use the EchoLink software
B	Register your call sign and provide proof of license
C	All these choices are correct
D	Complete the required EchoLink training

33. - T8D08

Which of the following is included in packet radio transmissions?

Select	Answer
A	A header that contains the call sign of the station to which the information is being sent
B	A check sum that permits error detection
C	Automatic repeat request in case of error
D	All these choices are correct

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. - T9B11

Which of the following types of feed line has the lowest loss at VHF and UHF?

Select	Answer
A	50-ohm flexible coax
B	Air-insulated hardline
C	75-ohm flexible coax
D	Multi-conductor unbalanced cable

Figure T-1