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. - T0A02

What health hazard is presented by electrical current flowing through the body?

Select	Answer
A	It may cause involuntary muscle contractions
B	It may disrupt the electrical functions of cells
C	All these choices are correct
D	It may cause injury by heating tissue

2. - T0B08

Which is a proper grounding method for a tower?

Select	Answer
A	A connection between the tower base and a cold water pipe
B	A ferrite-core RF choke connected between the tower and ground
C	Separate eight-foot ground rods for each tower leg, bonded to the tower and each other
D	A single four-foot ground rod, driven into the ground no more than 12 inches from the base

3. - T0C03

How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?

Select	Answer
A	It increases by a factor of 3
B	There is no adjustment allowed for lower duty cycle
C	It decreases by 50 percent
D	It increases by a factor of 2

4. - T1A02

Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

Select	Answer
A	Homeland Security
B	FEMA
C	All these choices are correct
D	The FCC

5. - T1B11

What is the maximum peak envelope power output for Technician class operators in their HF band segments?

Select	Answer
A	50 watts
B	100 watts
C	10 watts
D	200 watts

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

7. - T1D07

What types of amateur stations can automatically retransmit the signals of other amateur stations?

Select	Answer
A	Auxiliary, beacon, or Earth stations
B	Beacon, repeater, or space stations
C	Earth, repeater, or space stations
D	Repeater, auxiliary, or space stations

8. - T1E03

Who must designate the station control operator?

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

9. - T1F11

Which of the following is a requirement for the issuance of a club station license grant?

Select	Answer
A	The club must have at least four members
B	All these choices are correct
C	The trustee must have an Amateur Extra Class operator license grant
D	The club must be registered with the American Radio Relay League

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

11. - T2B04

Which of the following could be the reason you are unable to access a repeater whose output you can hear?

Select	Answer
A	You are using the wrong CTCSS tone
B	Improper transceiver offset
C	All these choices are correct
D	You are using the wrong DCS code

12. - T2C03

What technique is used to ensure that voice messages containing unusual words are received correctly?

Select	Answer
A	All these choices are correct
B	Send the words by voice and Morse code
C	Spell the words using a standard phonetic alphabet
D	Speak very loudly into the microphone

13. - T3A10

What effect does multi-path propagation have on data transmissions?

Select	Answer
A	Error rates are likely to increase
B	Transmission rates must be decreased by a factor equal to the number of separate paths observed
C	Transmission rates must be increased by a factor equal to the number of separate paths observed
D	No significant changes will occur if the signals are transmitted using FM

14. - T3B07

In addition to frequency, which of the following is used to identify amateur radio bands?

Select	Answer
A	Traditional letter/number designators
B	Channel numbers
C	All these choices are correct
D	The approximate wavelength in meters

15. - T3C11

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

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

16. - T4A12

What is an electronic keyer?

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

17. - T4B09

How is a specific group of stations selected on a digital voice transceiver?

Select	Answer
A	By entering the group’s identification code
B	By retrieving the frequencies from transceiver memory
C	By activating automatic identification
D	By enabling the group’s CTCSS tone

18. - T5A07

Why are metals generally good conductors of electricity?

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

19. - T5B04

Which is equal to one microvolt?

Select	Answer
A	One one-millionth of a volt
B	One one-thousandth of a volt
C	One thousand kilovolts
D	One million volts

20. - T5C01

What describes the ability to store energy in an electric field?

Select	Answer
A	Inductance
B	Capacitance
C	Tolerance
D	Resistance

21. - T5D04

What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?

Select	Answer
A	3 ohms
B	93 ohms
C	30 ohms
D	270 ohms

22. - T6A09

What electrical component is used to protect other circuit components from current overloads?

Select	Answer
A	Varactor
B	All these choices are correct
C	Thyratron
D	Fuse

23. - T6B11

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

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

24. - T6C01

What is the name of an electrical wiring diagram that uses standard component symbols?

Select	Answer
A	Schematic
B	Connector pinout
C	Flow chart
D	Bill of materials

25. - T6D08

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

Select	Answer
A	Potentiometer
B	Zener diode
C	Resistor
D	Capacitor

26. - T7A04

Which term describes the ability of a receiver to discriminate between multiple signals?

Select	Answer
A	Sensitivity
B	Harmonic distortion
C	Discrimination ratio
D	Selectivity

27. - T7B04

Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

Select	Answer
A	Low-pass filter
B	Preamplifier
C	Band-pass filter
D	Ferrite choke

28. - T7C11

What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

Select	Answer
A	It cannot be used for VHF or UHF antennas
B	It requires special techniques to prevent moisture in the cable
C	It has more loss per foot
D	It cannot be used at below freezing temperatures

29. - T7D03

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

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

30. - T8A03

Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?

Select	Answer
A	FM
B	SSB
C	PM
D	DRM

31. - T8B01

What telemetry information is typically transmitted by satellite beacons?

Select	Answer
A	All these choices are correct
B	The signal strength of received signals
C	Time of day accurate to plus or minus 1/10 second
D	Health and status of the satellite

32. - T8C02

Which of these items would be useful for a hidden transmitter hunt?

Select	Answer
A	A directional antenna
B	A calibrated noise bridge
C	All these choices are correct
D	Calibrated SWR meter

33. - T8D02

What is a “talkgroup” on a DMR repeater?

Select	Answer
A	A net that meets at a specified time
B	A group of operators sharing common interests
C	A way for groups of users to share a channel at different times without hearing other users on the channel
D	A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together

34. - T9A10

In which direction does a half-wave dipole antenna radiate the strongest signal?

Select	Answer
A	Broadside to the antenna
B	Off the ends of the antenna
C	In the direction of the feed line
D	Equally in all directions

35. - T9B08

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

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