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. - T0A06

What is a good way to guard against electrical shock at your station?

Select	Answer
A	Use three-wire cords and plugs for all AC powered equipment
B	Connect all AC powered station equipment to a common safety ground
C	Install mechanical interlocks in high-voltage circuits
D	All these choices are correct

2. - T0B03

Under what circumstances is it safe to climb a tower without a helper or observer?

Select	Answer
A	When no electrical work is being performed
B	When no mechanical work is being performed
C	Never
D	When the work being done is not more than 20 feet above the ground

3. - T0C04

What factors affect the RF exposure of people near an amateur station antenna?

Select	Answer
A	Frequency and power level of the RF field
B	All these choices are correct
C	Distance from the antenna to a person
D	Radiation pattern of the antenna

4. - T1A04

How many operator/primary station license grants may be held by any one person?

Select	Answer
A	One
B	One for each permanent station location from which the person plans to operate
C	No more than two
D	One for each band on which the person plans to operate

5. - T1B10

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

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

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

7. - T1D10

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

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

8. - T1E05

What is an amateur station’s control point?

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

9. - T1F01

When must the station and its records be available for FCC inspection?

Select	Answer
A	Only when presented with a valid warrant by an FCC official or government agent
B	At any time upon request by an FCC representative
C	At any time ten days after notification by the FCC of such an inspection
D	At any time after written notification by the FCC of such inspection

10. - T2A08

What is the meaning of the procedural signal “CQ”?

Select	Answer
A	Call on the quarter hour
B	Calling any station
C	Only the called station should transmit
D	Test transmission, no reply expected

11. - T2B01

How is a VHF/UHF transceiver’s “reverse” function used?

Select	Answer
A	To increase power output
B	To listen on a repeater’s input frequency
C	To listen on a repeater’s output frequency
D	To reduce power output

12. - T2C05

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

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

13. - T3A08

What is a likely cause of irregular fading of signals propagated by the ionosphere?

Select	Answer
A	Frequency shift due to Faraday rotation
B	Random combining of signals arriving via different paths
C	Interference from thunderstorms
D	Intermodulation distortion

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 are in parallel
C	They revolve in opposite directions
D	They are at right angles

15. - T3C08

What causes tropospheric ducting?

Select	Answer
A	Temperature inversions in the atmosphere
B	Updrafts from hurricanes and tornadoes
C	Discharges of lightning during electrical storms
D	Sunspots and solar flares

16. - T4A06

What signals are used in a computer-radio interface for digital mode operation?

Select	Answer
A	Receive audio, transmit audio, and transmitter keying
B	NMEA GPS location and DC power
C	Receive and transmit mode, status, and location
D	Antenna and RF power

17. - T4B11

Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

Select	Answer
A	Your output power
B	Your call sign
C	All these choices are correct
D	The codec type being used

18. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Ohms
B	Watts
C	Volts
D	Amperes

19. - T5B08

Which is equal to 1,000,000 picofarads?

Select	Answer
A	1000 microfarads
B	0.001 microfarads
C	1 microfarad
D	1,000,000,000 microfarads

20. - T5C05

What is the unit of impedance?

Select	Answer
A	The ohm
B	The volt
C	The coulomb
D	The ampere

21. - T5D09

What is the current through a 24-ohm resistor connected across 240 volts?

Select	Answer
A	24,000 amperes
B	10 amperes
C	216 amperes
D	0.1 amperes

22. - T6A12

What type of switch is represented by component 3 in figure T-2?

Select	Answer
A	Single-pole double-throw
B	Double-pole double-throw
C	Double-pole single-throw
D	Single-pole single-throw

23. - T6B06

How is the cathode lead of a semiconductor diode often marked on the package?

Select	Answer
A	With the letter C
B	With the word "cathode"
C	With the letter K
D	With a stripe

24. - T6C09

What is component 4 in figure T-2?

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

25. - T6D04

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

Select	Answer
A	Transistor
B	Potentiometer
C	Relay
D	Meter

26. - T7A03

Which of the following is used to convert a signal from one frequency to another?

Select	Answer
A	Phase splitter
B	Amplifier
C	Inverter
D	Mixer

27. - T7B11

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

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

28. - T7C08

Which instrument can be used to determine SWR?

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

29. - T7D03

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

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

30. - T8A01

Which of the following is a form of amplitude modulation?

Select	Answer
A	Packet radio
B	Phase shift keying (PSK)
C	Single sideband
D	Spread spectrum

31. - T8B06

Which of the following are inputs to a satellite tracking program?

Select	Answer
A	All these choices are correct
B	The Keplerian elements
C	The last observed time of zero Doppler shift
D	The satellite transmitted power

32. - T8C01

Which of the following methods is used to locate sources of noise interference or jamming?

Select	Answer
A	Doppler radar
B	Phase locking
C	Echolocation
D	Radio direction finding

33. - T8D02

What is a “talkgroup” on a DMR repeater?

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

34. - T9A06

Which of the following types of antenna offers the greatest gain?

Select	Answer
A	5/8 wave vertical
B	Yagi
C	J pole
D	Isotropic

35. - T9B05

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

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

Figure T-2