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. - T0A12

Which of the following precautions should be taken when measuring high voltages with a voltmeter?

Select	Answer
A	Ensure that the circuit is grounded through the voltmeter
B	Ensure that the voltmeter has very low impedance
C	Ensure that the voltmeter and leads are rated for use at the voltages to be measured
D	Ensure that the voltmeter is set to the correct frequency

2. - T0B03

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

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

3. - T0C01

What type of radiation are radio signals?

Select	Answer
A	Gamma radiation
B	Alpha radiation
C	Ionizing radiation
D	Non-ionizing radiation

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

6. - T1C06

From which of the following locations may an FCC-licensed amateur station transmit?

Select	Answer
A	From anywhere within International Telecommunication Union (ITU) Regions 2 and 3
B	From within any country that belongs to the International Telecommunication Union
C	From within any country that is a member of the United Nations
D	From any vessel or craft located in international waters and documented or registered in the United States

7. - T1D08

In which of the following circumstances may the control operator of an amateur station receive compensation for operating that station?

Select	Answer
A	When the communication is made to obtain emergency information for a local broadcast station
B	When the communication is related to the sale of amateur equipment by the control operator's employer
C	All these choices are correct
D	When the communication is incidental to classroom instruction at an educational institution

8. - T1E06

When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

Select	Answer
A	At no time
B	As part of a multi-operator contest team
C	When using a club station whose trustee holds an Amateur Extra Class license
D	When designated as the control operator by an Amateur Extra Class licensee

9. - T1F03

When are you required to transmit your assigned call sign?

Select	Answer
A	At least every 10 minutes during and at the end of a communication
B	At the beginning of each contact, and every 10 minutes thereafter
C	At least every 15 minutes during and at the end of a communication
D	At least once during each transmission

10. - T2A08

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

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

11. - T2B12

What is the purpose of the color code used on DMR repeater systems?

Select	Answer
A	Defines the minimum signal level required for access
B	Must match the repeater color code for access
C	Identifies the codec used
D	Defines the frequency pair to use

12. - T2C02

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

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

13. - T3A10

What effect does multi-path propagation have on data transmissions?

Select	Answer
A	No significant changes will occur if the signals are transmitted using FM
B	Transmission rates must be decreased by a factor equal to the number of separate paths observed
C	Error rates are likely to increase
D	Transmission rates must be increased by a factor equal to the number of separate paths observed

14. - T3B07

In addition to frequency, which of the following is used to identify amateur radio bands?

Select	Answer
A	Traditional letter/number designators
B	The approximate wavelength in meters
C	All these choices are correct
D	Channel numbers

15. - T3C04

Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

Select	Answer
A	Backscatter
B	D region absorption
C	Sporadic E
D	Gray-line propagation

16. - T4A04

How are the transceiver audio input and output connected in a station configured to operate using FT8?

Select	Answer
A	To a computer connected to the FT8converter.com website
B	To a computer running a terminal program and connected to a terminal node controller unit
C	To the audio input and output of a computer running WSJT-X software
D	To an FT8 conversion unit, a keyboard, and a computer monitor

17. - T4B05

What does the scanning function of an FM transceiver do?

Select	Answer
A	Tunes through a range of frequencies to check for activity
B	Checks incoming signal deviation
C	Checks for messages left on a digital bulletin board
D	Prevents interference to nearby repeaters

18. - T5A07

Why are metals generally good conductors of electricity?

Select	Answer
A	They have many free electrons
B	They have relatively high density
C	They have many free protons
D	All these choices are correct

19. - T5B09

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

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

20. - T5C11

How much current is required to deliver 120 watts at a voltage of 12 volts DC?

Select	Answer
A	0.1 amperes
B	132 amperes
C	12 amperes
D	10 amperes

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	0.667 amperes
B	9600 amperes
C	1.5 amperes
D	200 amperes

22. - T6A11

Which of the following battery chemistries is not rechargeable?

Select	Answer
A	Lead-acid
B	Carbon-zinc
C	Lithium-ion
D	Nickel-cadmium

23. - T6B07

What causes a light-emitting diode (LED) to emit light?

Select	Answer
A	Forward current
B	Inductively-coupled RF signal
C	Capacitively-coupled RF signal
D	Reverse current

24. - T6C06

What is component 6 in figure T-2?

Select	Answer
A	Transistor
B	Capacitor
C	Resistor
D	Regulator IC

25. - T6D11

Which of the following is a resonant or tuned circuit?

Select	Answer
A	A linear voltage regulator
B	A circuit designed to provide high-fidelity audio
C	An inductor and a capacitor in series or parallel
D	A resistor circuit used for reducing standing wave ratio

26. - T7A09

What is the function of the SSB/CW-FM switch on a VHF power amplifier?

Select	Answer
A	Change the mode of the transmitted signal
B	Reduce the received signal noise
C	Set the amplifier for proper operation in the selected mode
D	Change the frequency range of the amplifier to operate in the proper segment of the band

27. - T7B03

Which of the following can cause radio frequency interference?

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

28. - T7C03

What does a dummy load consist of?

Select	Answer
A	A high-gain amplifier and a TR switch
B	A non-inductive resistor mounted on a heat sink
C	A low-voltage power supply and a DC relay
D	A 50-ohm reactance used to terminate a transmission line

29. - T7D01

Which instrument would you use to measure electric potential?

Select	Answer
A	An ohmmeter
B	A voltmeter
C	An ammeter
D	A wavemeter

30. - T8A07

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

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

31. - T8B03

Which of the following are provided by satellite tracking programs?

Select	Answer
A	The time, azimuth, and elevation of the start, maximum altitude, and end of a pass
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	All these choices are correct

32. - T8C02

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

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

33. - T8D11

What is an ARQ transmission system?

Select	Answer
A	A method of compressing data using autonomous reiterative Q codes prior to final encoding
B	A system used to encrypt command signals to an amateur radio satellite
C	A special transmission format limited to video signals
D	An error correction method in which the receiving station detects errors and sends a request for retransmission

34. - T9A09

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

Select	Answer
A	236
B	112
C	6
D	50

35. - T9B02

What is the most common impedance of coaxial cables used in amateur radio?

Select	Answer
A	50 ohms
B	600 ohms
C	8 ohms
D	12 ohms

Figure T-2