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

2. - T0B07

Which of the following is an important safety rule to remember when using a crank-up tower?

Select	Answer
A	This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed
B	This type of tower must never be painted
C	All these choices are correct
D	This type of tower must never be grounded

3. - T0C09

How can you make sure your station stays in compliance with RF safety regulations?

Select	Answer
A	All these choices are correct
B	By re-evaluating the station whenever an item in the transmitter or antenna system is changed
C	By informing the FCC of any changes made in your station
D	By making sure your antennas have low SWR

4. - T1A10

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

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

5. - T1B11

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

Select	Answer
A	10 watts
B	100 watts
C	50 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 have a copy of your license available at your station
B	Failure to obtain FCC type acceptance prior to using a home-built transmitter
C	Failure to inform the FCC of any changes in the amateur station following performance of an RF safety environmental evaluation
D	Failure to provide and maintain a correct email address with the FCC

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. - T1E03

Who must designate the station control operator?

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

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 person must be a U.S. citizen
C	The licensed control operator must do the station identification
D	The foreign station must be in a country with which the U.S. has a third party agreement

10. - T2A09

Which of the following indicates that a station is listening on a repeater and looking for a contact?

Select	Answer
A	“QSY” followed by your call sign
B	The station’s call sign followed by the word “monitoring”
C	“CQ CQ” followed by the repeater’s call sign
D	The repeater call sign followed by the station’s call sign

11. - T2B08

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

Select	Answer
A	Interference is inevitable, so no action is required
B	Use subaudible tones so both stations can share the frequency
C	The stations should negotiate continued use of the frequency
D	Both stations should choose another frequency to avoid conflict

12. - T2C02

Which of the following are typical duties of a Net Control Station?

Select	Answer
A	All these choices are correct
B	Choose the regular net meeting time and frequency
C	Ensure that all stations checking into the net are properly licensed for operation on the net frequency
D	Call the net to order and direct communications between stations checking in

13. - T3A06

What is the meaning of the term “picket fencing”?

Select	Answer
A	Local vs long-distance communications
B	Alternating transmissions during a net operation
C	Rapid flutter on mobile signals due to multipath propagation
D	A type of ground system used with vertical antennas

14. - T3B03

What are the two components of a radio wave?

Select	Answer
A	Electric and magnetic fields
B	Impedance and reactance
C	Ionizing and non-ionizing radiation
D	Voltage and current

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	F2 region refraction
C	D region refraction
D	Faraday rotation

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	Antenna and RF power
C	Receive and transmit mode, status, and location
D	NMEA GPS location and DC power

17. - T4B08

What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

Select	Answer
A	Increases the amount of offset between receive and transmit frequencies
B	Permits monitoring several modes at once by selecting a separate filter for each mode
C	Permits noise or interference reduction by selecting a bandwidth matching the mode
D	Increases the number of frequencies that can be stored in memory

18. - T5A02

Electrical power is measured in which of the following units?

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

19. - T5B09

Which decibel value most closely represents a power increase from 5 watts to 10 watts?

Select	Answer
A	3 dB
B	10 dB
C	5 dB
D	2 dB

20. - T5C03

What describes the ability to store energy in a magnetic field?

Select	Answer
A	Inductance
B	Admittance
C	Capacitance
D	Resistance

21. - T5D12

What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

Select	Answer
A	20 volts
B	8 volts
C	12 volts
D	0.2 volts

22. - T6A06

What type of electrical component stores energy in a magnetic field?

Select	Answer
A	Diode
B	Capacitor
C	Varistor
D	Inductor

23. - T6B04

Which of the following components can consist of three regions of semiconductor material?

Select	Answer
A	Pentagrid converter
B	Transistor
C	Alternator
D	Triode

24. - T6C05

What is component 4 in figure T-1?

Select	Answer
A	Battery
B	Transistor
C	Resistor
D	Ground symbol

25. - T6D09

What is the name of a device that combines several semiconductors and other components into one package?

Select	Answer
A	Transducer
B	Integrated circuit
C	Multi-pole relay
D	Transformer

26. - T7A10

What device increases the transmitted output power from a transceiver?

Select	Answer
A	An impedance network
B	A voltage divider
C	All these choices are correct
D	An RF power amplifier

27. - T7B10

What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

Select	Answer
A	Your batteries are running low
B	All these choices are correct
C	Your transmitter is slightly off frequency
D	You are in a bad location

28. - T7C01

What is the primary purpose of a dummy load?

Select	Answer
A	To improve the efficiency of an antenna
B	To prevent over-modulation of a transmitter
C	To improve the signal-to-noise ratio of a receiver
D	To prevent transmitting signals over the air when making tests

29. - T7D10

What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

Select	Answer
A	Alternating between open and short circuit
B	Increasing resistance with time
C	Decreasing resistance with time
D	Steady full-scale reading

30. - T8A12

Which of the following is a disadvantage of FM compared with single sideband?

Select	Answer
A	FM signals are harder to tune
B	All these choices are correct
C	Voice quality is poorer
D	Only one signal can be received at a time

31. - T8B06

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

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

32. - T8C03

What operating activity involves contacting as many stations as possible during a specified period?

Select	Answer
A	Net operations
B	Public service events
C	Contesting
D	Simulated emergency exercises

33. - T8D06

What does the abbreviation "PSK" mean?

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

34. - T9A09

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

Select	Answer
A	112
B	236
C	50
D	6

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 increases
C	The characteristic impedance decreases
D	The loss decreases

Figure T-1