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. - T0A11

What hazard exists in a power supply immediately after turning it off?

Select	Answer
A	Circulating currents in the dc filter
B	Voltage transients from kickback diodes
C	Leakage flux in the power transformer
D	Charge stored in filter capacitors

2. - T0B02

What is required when climbing an antenna tower?

Select	Answer
A	Use appropriate tie-off to the tower at all times
B	All these choices are correct
C	Always wear an approved climbing harness
D	Have sufficient training on safe tower climbing techniques

3. - T0C12

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

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

4. - T1A02

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

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

5. - T1B11

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

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

6. - T1C08

What is the normal term for an FCC-issued amateur radio license?

Select	Answer
A	Eight years
B	Ten years
C	Life
D	Five years

7. - T1D07

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

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

8. - T1E09

Which of the following are required for remote control operation?

Select	Answer
A	A control operator is required at all times
B	All these choices are correct
C	The control operator must indirectly manipulate the controls
D	The control operator must be at the control point

9. - T1F07

Which of the following restrictions apply when a non-licensed person is allowed to speak to a foreign station using a station under the control of a licensed amateur operator?

Select	Answer
A	All these choices are correct
B	The foreign station must be in a country with which the U.S. has a third party agreement
C	The person must be a U.S. citizen
D	The licensed control operator must do the station identification

10. - T2A10

What is a band plan, beyond the privileges established by the FCC?

Select	Answer
A	A voluntary guideline for using different modes or activities within an amateur band
B	A plan devised by a club to indicate frequency band usage
C	A list of available net frequencies
D	A list of operating schedules

11. - T2B03

Which of the following describes a linked repeater network?

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

12. - T2C05

What does the term “traffic” refer to in net operation?

Select	Answer
A	The number of stations checking in and out of a net
B	Requests to activate the net by a served agency
C	Messages exchanged by net stations
D	Operation by mobile or portable stations

13. - T3A01

Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

Select	Answer
A	Multipath propagation cancels or reinforces signals
B	VHF ionospheric propagation is very sensitive to path length
C	The signal path encounters different concentrations of water vapor
D	All these choices are correct

14. - T3B04

What is the velocity of a radio wave traveling through free space?

Select	Answer
A	Speed of sound
B	Speed inversely proportional to its wavelength
C	Speed that increases as the frequency increases
D	Speed of light

15. - T3C06

What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Select	Answer
A	Tropospheric ducting
B	D region refraction
C	F2 region refraction
D	Faraday rotation

16. - T4A11

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

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

17. - T4B09

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

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

18. - T5A02

Electrical power is measured in which of the following units?

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

19. - T5B02

Which is equal to 1,500,000 hertz?

Select	Answer
A	1500 MHz
B	150 kHz
C	1500 kHz
D	15 GHz

20. - T5C06

What does the abbreviation “RF” mean?

Select	Answer
A	Reflective force in antenna transmission lines
B	The real frequency transmitted as opposed to the apparent frequency
C	The resonant frequency of a tuned circuit
D	Radio frequency signals of all types

21. - T5D14

In which type of circuit is voltage the same across all components?

Select	Answer
A	Resonant
B	Parallel
C	Series
D	Branch

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Varistor
B	Inductor
C	Diode
D	Capacitor

23. - T6B02

What electronic component allows current to flow in only one direction?

Select	Answer
A	Diode
B	Resistor
C	Driven element
D	Fuse

24. - T6C05

What is component 4 in figure T-1?

Select	Answer
A	Resistor
B	Transistor
C	Battery
D	Ground symbol

25. - T6D07

Which of the following is commonly used as a visual indicator?

Select	Answer
A	LED
B	FET
C	Zener diode
D	Bipolar transistor

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. - T7B11

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

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

28. - T7C02

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

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

29. - T7D09

What is the characteristic appearance of a cold tin-lead solder joint?

Select	Answer
A	Excessive solder
B	A rough or lumpy surface
C	A bright or shiny surface
D	Dark black spots

30. - T8A11

What is the approximate bandwidth required to transmit a CW signal?

Select	Answer
A	15 kHz
B	150 Hz
C	1000 Hz
D	2.4 kHz

31. - T8B04

What mode of transmission is commonly used by amateur radio satellites?

Select	Answer
A	All these choices are correct
B	FM
C	CW/data
D	SSB

32. - T8C02

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

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

33. - T8D10

Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

Select	Answer
A	All these choices are correct
B	Weak signal propagation beacons
C	Meteor scatter
D	Earth-Moon-Earth

34. - T9A01

What is a beam antenna?

Select	Answer
A	An omnidirectional antenna invented by Clarence Beam
B	An antenna that concentrates signals in one direction
C	An antenna that reverses the phase of received signals
D	An antenna built from aluminum I-beams

35. - T9B09

What can cause erratic changes in SWR?

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

Figure T-1