US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Anonymous User

US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - T0A07

Where should a lightning arrester be installed in a coaxial feed line?

Select	Answer
A	At the output connector of a transceiver
B	At the antenna feed point
C	At the ac power service panel
D	On a grounded panel near where feed lines enter the building

2. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	The antenna will not work properly because of induced voltages
B	All these choices are correct
C	The 60 Hz radiations from the feed line may increase the SWR
D	The antenna could contact high-voltage power lines

3. - T0C12

How does RF radiation differ from ionizing radiation (radioactivity)?

Select	Answer
A	RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA
B	RF radiation can only be detected with an RF dosimeter
C	RF radiation is limited in range to a few feet
D	RF radiation is perfectly safe

4. - T1A10

What is the Radio Amateur Civil Emergency Service (RACES)?

Select	Answer
A	A radio service using amateur frequencies for emergency management or civil defense communications
B	A radio service using amateur stations for emergency management or civil defense communications
C	All these choices are correct
D	An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization

5. - T1B10

Where may SSB phone be used in amateur bands above 50 MHz?

Select	Answer
A	Only in sub-bands allocated to General class or higher licensees
B	Only on repeaters
C	On any band if the power is limited to 25 watts
D	In at least some segment of all these bands

6. - T1C01

For which license classes are new licenses currently available from the FCC?

Select	Answer
A	Novice, Technician Plus, General, Advanced
B	Novice, Technician, General, Amateur Extra
C	Technician, General, Amateur Extra
D	Technician, Technician Plus, General, Amateur Extra

7. - T1D11

When may an amateur station transmit without identifying on the air?

Select	Answer
A	When the transmissions are unmodulated
B	When transmitting signals to control model craft
C	When the transmissions are of a brief nature to make station adjustments
D	When the transmitted power level is below 1 watt

8. - T1E10

Which of the following is an example of remote control as defined in Part 97?

Select	Answer
A	Operating the station over the internet
B	All these choices are correct
C	Controlling a model aircraft, boat, or car by amateur radio
D	Repeater operation

9. - T1F02

How often must you identify with your FCC-assigned call sign when using tactical call signs such as “Race Headquarters”?

Select	Answer
A	Never, the tactical call is sufficient
B	At the end of each communication and every ten minutes during a communication
C	Once during every hour
D	At the end of every transmission

10. - T2A07

What is meant by "repeater offset”?

Select	Answer
A	The repeater has a time delay to prevent interference
B	The difference between a repeater’s transmit and receive frequencies
C	The repeater station identification is done on a separate frequency
D	The number of simultaneous transmit frequencies used by a repeater

11. - T2B06

What type of signaling uses pairs of audio tones?

Select	Answer
A	DTMF
B	D-STAR
C	GPRS
D	CTCSS

12. - T2C06

What is the Amateur Radio Emergency Service (ARES)?

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

13. - T3A05

When using a directional antenna, how might your station be able to communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?

Select	Answer
A	Try the long path
B	Increase the antenna SWR
C	Change from vertical to horizontal polarization
D	Try to find a path that reflects signals to the repeater

14. - T3B11

What is the approximate velocity of a radio wave in free space?

Select	Answer
A	300,000,000 meters per second
B	300,000,000 miles per hour
C	150,000 miles per hour
D	150,000 meters per second

15. - T3C07

What band is best suited for communicating via meteor scatter?

Select	Answer
A	70 centimeters
B	2 meters
C	6 meters
D	33 centimeters

16. - T4A11

Where should the negative power return of a mobile transceiver be connected in a vehicle?

Select	Answer
A	Through the transceiver’s mounting bracket
B	At the antenna mount
C	At the 12 volt battery chassis ground
D	To any metal part of the vehicle

17. - T4B02

Which of the following can be used to enter a transceiver’s operating frequency?

Select	Answer
A	The CTCSS or DTMF encoder
B	The keypad or VFO knob
C	The Automatic Frequency Control
D	All these choices are correct

18. - T5A02

Electrical power is measured in which of the following units?

Select	Answer
A	Volts
B	Watts
C	Amperes
D	Watt-hours

19. - T5B10

Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

Select	Answer
A	-6 dB
B	-3 dB
C	-9 dB
D	-1 dB

20. - T5C12

What is impedance?

Select	Answer
A	The opposition to AC current flow
B	The Q or Quality Factor of a component
C	The power handling capability of a component
D	The inverse of resistance

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	1.5 amperes
B	9600 amperes
C	0.667 amperes
D	200 amperes

22. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Capacitance
B	Inductance
C	Resistance
D	Field strength

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Reactor
B	Transistor
C	Resistor
D	Transformer

24. - T6C01

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

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

25. - T6D06

What component changes 120 V AC power to a lower AC voltage for other uses?

Select	Answer
A	Variable capacitor
B	Transistor
C	Transformer
D	Diode

26. - T7A04

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

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

27. - T7B03

Which of the following can cause radio frequency interference?

Select	Answer
A	Spurious emissions
B	All these choices are correct
C	Harmonics
D	Fundamental overload

28. - T7C08

Which instrument can be used to determine SWR?

Select	Answer
A	Ohmmeter
B	Directional wattmeter
C	Voltmeter
D	Iambic pentameter

29. - T7D07

Which of the following measurements are made using a multimeter?

Select	Answer
A	Impedance and reactance
B	All these choices are correct
C	Voltage and resistance
D	Signal strength and noise

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	DRM
B	PM
C	FM
D	SSB

31. - T8B02

What is the impact of using excessive effective radiated power on a satellite uplink?

Select	Answer
A	Blocking access by other users
B	Overloading the satellite batteries
C	Possibility of rebooting the satellite control computer
D	Possibility of commanding the satellite to an improper mode

32. - T8C06

How is over the air access to IRLP nodes accomplished?

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

33. - T8D06

What does the abbreviation "PSK" mean?

Select	Answer
A	Pulse Shift Keying
B	Packet Short Keying
C	Phase Shift Keying
D	Phased Slide Keying

34. - T9A09

What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

Select	Answer
A	112
B	6
C	236
D	50

35. - T9B09

What can cause erratic changes in SWR?

Select	Answer
A	Local thunderstorm
B	Loose connection in the antenna or feed line
C	Over-modulation
D	Overload from a strong local station