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	RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas
C	Shorting the terminals can cause burns, fire, or an explosion
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 no mechanical work is being performed
B	When no electrical work is being performed
C	When the work being done is not more than 20 feet above the ground
D	Never

3. - T0C11

What is the definition of duty cycle during the averaging time for RF exposure?

Select	Answer
A	The difference between the lowest power output and the highest power output of a transmitter
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 percentage of time that a transmitter is transmitting

4. - T1A11

When is willful interference to other amateur radio stations permitted?

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

5. - T1B05

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

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

6. - T1C03

What types of international communications are an FCC-licensed amateur radio station permitted to make?

Select	Answer
A	Communications incidental to the purposes of the Amateur Radio Service and remarks of a personal character
B	Only communications incidental to contest exchanges; all other communications are prohibited
C	Any communications that would be permitted by an international broadcast station
D	Communications incidental to conducting business or remarks of a personal nature

7. - T1D02

Under which of the following circumstances are one-way transmissions by an amateur station prohibited?

Select	Answer
A	International Morse Code Practice
B	Telecommand or transmissions of telemetry
C	Broadcasting
D	In all circumstances

8. - T1E05

What is an amateur station’s control point?

Select	Answer
A	The location of the station’s transmitting antenna
B	The location at which the control operator function is performed
C	The location of the station’s transmitting apparatus
D	The mailing address of the station licensee

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 club must be registered with the American Radio Relay League
D	The trustee must have an Amateur Extra Class operator license grant

10. - T2A03

What is a common repeater frequency offset in the 70 cm band?

Select	Answer
A	Plus or minus 600 kHz
B	Plus or minus 500 kHz
C	Plus or minus 5 MHz
D	Plus or minus 1 MHz

11. - T2B10

Which Q signal indicates that you are receiving interference from other stations?

Select	Answer
A	QSB
B	QTH
C	QRM
D	QRN

12. - T2C06

What is the Amateur Radio Emergency Service (ARES)?

Select	Answer
A	A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
B	A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
C	A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
D	A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service

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. - T3B01

What is the relationship between the electric and magnetic fields of an electromagnetic wave?

Select	Answer
A	They travel at different speeds
B	They revolve in opposite directions
C	They are in parallel
D	They are at right angles

15. - T3C10

Which of the following bands may provide long-distance communications via the ionosphere’s F region during the peak of the sunspot cycle?

Select	Answer
A	23 centimeters
B	All these choices are correct
C	70 centimeters and 1.25 meters
D	6 and 10 meters

16. - T4A01

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

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

17. - T4B03

How is squelch adjusted so that a weak FM signal can be heard?

Select	Answer
A	Enable squelch enhancement
B	Turn on the anti-squelch function
C	Set the squelch threshold so that receiver output audio is on all the time
D	Turn up the audio level until it overcomes the squelch threshold

18. - T5A09

Which of the following describes alternating current?

Select	Answer
A	Current that alternates between a positive direction and zero
B	Current that alternates between a negative direction and zero
C	Current that alternates between positive and negative directions
D	All these answers are correct

19. - T5B05

Which is equal to 500 milliwatts?

Select	Answer
A	50 watts
B	0.02 watts
C	5 watts
D	0.5 watts

20. - T5C09

How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

Select	Answer
A	0.7 watts
B	23.8 watts
C	3.8 watts
D	138 watts

21. - T5D13

In which type of circuit is DC current the same through all components?

Select	Answer
A	Parallel
B	Series
C	Resonant
D	Branch

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Varistor
B	Capacitor
C	Inductor
D	Diode

23. - T6B01

Which is true about forward voltage drop in a diode?

Select	Answer
A	It indicates that the diode is defective
B	It is lower in some diode types than in others
C	It is proportional to peak inverse voltage
D	It has no impact on the voltage delivered to the load

24. - T6C09

What is component 4 in figure T-2?

Select	Answer
A	Transformer
B	Potentiometer
C	Double-pole switch
D	Variable inductor

25. - T6D10

What is the function of component 2 in figure T-1?

Select	Answer
A	Give off light when current flows through it
B	Supply electrical energy
C	Convert electrical energy into radio waves
D	Control the flow of current

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 transmitter and the antenna tuner
D	Between the antenna and receiver

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

28. - T7C06

What does an SWR reading of 4:1 indicate?

Select	Answer
A	Good impedance match
B	Loss of -4 dB
C	Gain of +4 dB
D	Impedance mismatch

29. - T7D08

Which of the following types of solder should not be used for radio and electronic applications?

Select	Answer
A	Rosin-core solder
B	Tin-copper solder
C	Lead-tin solder
D	Acid-core solder

30. - T8A07

What is a characteristic of single sideband (SSB) compared to FM?

Select	Answer
A	SSB signals are easier to tune in correctly
B	SSB signals have narrower bandwidth
C	All these choices are correct
D	SSB signals are less susceptible to interference

31. - T8B03

Which of the following are provided by satellite tracking programs?

Select	Answer
A	All these choices are correct
B	Maps showing the real-time position of the satellite track over Earth
C	The apparent frequency of the satellite transmission, including effects of Doppler shift
D	The time, azimuth, and elevation of the start, maximum altitude, and end of a pass

32. - T8C10

What is required before using the EchoLink system?

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

33. - T8D03

What kind of data can be transmitted by APRS?

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

34. - T9A10

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

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

35. - T9B05

What happens as the frequency of a signal in coaxial cable is increased?

Select	Answer
A	The characteristic impedance increases
B	The loss decreases
C	The characteristic impedance decreases
D	The loss increases

Figure T-2

Figure T-1