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. - T0A04

What is the purpose of a fuse in an electrical circuit?

Select	Answer
A	All these choices are correct
B	To prevent power supply ripple from damaging a component
C	To limit current to prevent shocks
D	To remove power in case of overload

2. - T0B03

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

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

3. - T0C05

Why do exposure limits vary with frequency?

Select	Answer
A	Higher frequency RF fields are transient in nature
B	Lower frequency RF fields have more energy than higher frequency fields
C	Lower frequency RF fields do not penetrate the human body
D	The human body absorbs more RF energy at some frequencies than at others

4. - T1A05

What proves that the FCC has issued an operator/primary license grant?

Select	Answer
A	All these choices are correct
B	A printed copy of the certificate of successful completion of examination
C	An email notification from the NCVEC granting the license
D	The license appears in the FCC ULS database

5. - T1B05

How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

Select	Answer
A	Spread spectrum only
B	Fixed digital message forwarding systems only
C	Emergency traffic only
D	Fast-scan television only

6. - T1C06

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

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

7. - T1D06

What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

Select	Answer
A	Any such language is prohibited
B	The ITU maintains a list of words that are not permitted to be used on amateur frequencies
C	The FCC maintains a list of words that are not permitted to be used on amateur frequencies
D	There is no such prohibition

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	When using a club station whose trustee holds an Amateur Extra Class license
C	When designated as the control operator by an Amateur Extra Class licensee
D	As part of a multi-operator contest team

9. - T1F03

When are you required to transmit your assigned call sign?

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

10. - T2A05

How should you respond to a station calling CQ?

Select	Answer
A	Transmit your call sign followed by the other station’s call sign
B	Transmit the other station’s call sign followed by your call sign
C	Transmit a signal report followed by your call sign
D	Transmit "CQ" followed by the other 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	The stations should negotiate continued use of the frequency
B	Both stations should choose another frequency to avoid conflict
C	Interference is inevitable, so no action is required
D	Use subaudible tones so both stations can share the frequency

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	Choose the regular net meeting time and frequency
D	All these choices are correct

13. - T3A11

Which region of the atmosphere can refract or bend HF and VHF radio waves?

Select	Answer
A	The stratosphere
B	The mesosphere
C	The ionosphere
D	The troposphere

14. - T3B03

What are the two components of a radio wave?

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

15. - T3C10

Which of the following bands may provide long-distance communications via the ionosphere’s F region during the peak of the sunspot cycle?

Select	Answer
A	6 and 10 meters
B	70 centimeters and 1.25 meters
C	23 centimeters
D	All these choices are correct

16. - T4A03

Why are short, heavy-gauge wires used for a transceiver’s DC power connection?

Select	Answer
A	All these choices are correct
B	To minimize voltage drop when transmitting
C	To avoid RF interference
D	To provide a good counterpoise for the antenna

17. - T4B09

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

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

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Farad
B	Henry
C	Hertz
D	Tesla

19. - T5B11

Which decibel value represents a power increase from 20 watts to 200 watts?

Select	Answer
A	28 dB
B	18 dB
C	12 dB
D	10 dB

20. - T5C08

What is the formula used to calculate electrical power (P) in a DC circuit?

Select	Answer
A	P = E – I
B	P = I + E
C	P = I  E
D	P = E / I

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	200 amperes
B	9600 amperes
C	0.667 amperes
D	1.5 amperes

22. - T6A09

What electrical component is used to protect other circuit components from current overloads?

Select	Answer
A	Fuse
B	Varactor
C	Thyratron
D	All these choices are correct

23. - T6B09

What are the names for the electrodes of a diode?

Select	Answer
A	Anode and cathode
B	Gate and base
C	Source and drain
D	Plus and minus

24. - T6C07

What is component 8 in figure T-2?

Select	Answer
A	Light emitting diode
B	Regulator IC
C	Inductor
D	Resistor

25. - T6D09

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

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

26. - T7A06

What device converts the RF input and output of a transceiver to another band?

Select	Answer
A	Transverter
B	High-pass filter
C	Low-pass filter
D	Phase converter

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

28. - T7C09

Which of the following causes failure of coaxial cables?

Select	Answer
A	Operation at 100% duty cycle for an extended period
B	Rapid fluctuation in transmitter output power
C	Solder flux contamination
D	Moisture contamination

29. - T7D11

Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

Select	Answer
A	Ensure that the circuit is operating at the correct frequency
B	Ensure that the circuit is grounded
C	Ensure that the circuit is not powered
D	Ensure that the applied voltages are correct

30. - T8A05

Which of the following types of signal has the narrowest bandwidth?

Select	Answer
A	FM voice
B	CW
C	Slow-scan TV
D	SSB voice

31. - T8B04

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

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

32. - T8C10

What is required before using the EchoLink system?

Select	Answer
A	All these choices are correct
B	Complete the required EchoLink training
C	Register your call sign and provide proof of license
D	Purchase a license to use the EchoLink software

33. - T8D08

Which of the following is included in packet radio transmissions?

Select	Answer
A	A header that contains the call sign of the station to which the information is being sent
B	Automatic repeat request in case of error
C	All these choices are correct
D	A check sum that permits error detection

34. - T9A04

What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna?

Select	Answer
A	It transmits only circularly polarized signals
B	It has low efficiency
C	All these choices are correct
D	It is mechanically fragile

35. - T9B05

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

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

Figure T-2