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. - T0A05

Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

Select	Answer
A	The larger fuse would be likely to blow because it is rated for higher current
B	All these choices are correct
C	The power supply ripple would greatly increase
D	Excessive current could cause a fire

2. - T0B04

Which of the following is an important safety precaution to observe when putting up an antenna tower?

Select	Answer
A	Look for and stay clear of any overhead electrical wires
B	All these choices are correct
C	Wear a ground strap connected to your wrist at all times
D	Insulate the base of the tower to avoid lightning strikes

3. - T0C10

Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

Select	Answer
A	It takes into account the antenna feed line loss
B	It affects the average exposure to radiation
C	It takes into account the thermal effects of the final amplifier
D	It affects the peak exposure to radiation

4. - T1A04

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

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

5. - T1B12

Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

Select	Answer
A	100 watts
B	1500 watts
C	50 watts
D	500 watts

6. - T1C11

If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

Select	Answer
A	Yes, for up to one year
B	Yes, for up to two years
C	No, you must wait until the license has been renewed
D	Yes, as soon as you apply for renewal

7. - T1D10

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

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

8. - T1E08

Which of the following is an example of automatic control?

Select	Answer
A	Repeater operation
B	Using a computer or other device to identify automatically
C	Using a computer or other device to send CW automatically
D	Controlling a station over the internet

9. - T1F06

Which of the following self-assigned indicators are acceptable when using a phone transmission?

Select	Answer
A	All these choices are correct
B	KL7CC stroke W3
C	KL7CC slant W3
D	KL7CC slash W3

10. - T2A04

What is an appropriate way to call another station on a repeater if you know the other station's call sign?

Select	Answer
A	Say "break, break," then say the station's call sign
B	Say "CQ" three times, then the other station's call sign
C	Say the station's call sign, then identify with your call sign
D	Wait for the station to call CQ, then answer

11. - T2B05

What would cause your FM transmission audio to be distorted on voice peaks?

Select	Answer
A	Your transmit power is too high
B	You need to talk louder
C	Your repeater offset is inverted
D	You are talking too loudly

12. - T2C11

What is meant by “check” in a radiogram header?

Select	Answer
A	A list of stations that have relayed the message
B	The number of words or word equivalents in the text portion of the message
C	The call sign of the originating station
D	A box on the message form that indicates that the message was received and/or relayed

13. - T3A10

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

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

14. - T3B03

What are the two components of a radio wave?

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

15. - T3C01

Why are simplex UHF signals rarely heard beyond their radio horizon?

Select	Answer
A	FCC regulations prohibit them from going more than 50 miles
B	UHF signals are absorbed by the ionospheric D region
C	They are too weak to go very far
D	UHF signals are usually not propagated by the ionosphere

16. - T4A03

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

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

17. - T4B05

What does the scanning function of an FM transceiver do?

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

18. - T5A09

Which of the following describes alternating current?

Select	Answer
A	Current that alternates between a negative direction and zero
B	All these answers are correct
C	Current that alternates between positive and negative directions
D	Current that alternates between a positive direction and zero

19. - T5B01

How many milliamperes is 1.5 amperes?

Select	Answer
A	1500 milliamperes
B	15 milliamperes
C	150 milliamperes
D	15,000 milliamperes

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	MHz
B	mh
C	Mhz
D	MH

21. - T5D11

What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

Select	Answer
A	10 volts
B	9 volts
C	11 volts
D	1 volt

22. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Field strength
B	Capacitance
C	Inductance
D	Resistance

23. - T6B08

What does the abbreviation FET stand for?

Select	Answer
A	Frequency Emission Transmitter
B	Field Effect Transistor
C	Fast Electron Transistor
D	Free Electron Transmitter

24. - T6C07

What is component 8 in figure T-2?

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

25. - T6D06

What component changes 120 V AC power to a lower AC voltage for other uses?

Select	Answer
A	Diode
B	Transistor
C	Variable capacitor
D	Transformer

26. - T7A02

What is a transceiver?

Select	Answer
A	A device for converting receiver and transmitter frequencies to another band
B	A device for automatically sending and decoding Morse code
C	A device that combines a receiver and transmitter
D	A device for matching feed line impedance to 50 ohms

27. - T7B08

What should you do if something in a neighbor’s home is causing harmful interference to your amateur station?

Select	Answer
A	Politely inform your neighbor that FCC rules prohibit the use of devices that cause interference
B	All these choices are correct
C	Make sure your station meets the standards of good amateur practice
D	Work with your neighbor to identify the offending device

28. - T7C05

Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

Select	Answer
A	To comply with FCC rules on spectral purity
B	To lower the SWR on the transmission line
C	To protect the output amplifier transistors
D	Because power supplies cannot supply enough current at high SWR

29. - T7D08

Which of the following types of solder should not be used for radio and electronic applications?

Select	Answer
A	Lead-tin solder
B	Acid-core solder
C	Tin-copper solder
D	Rosin-core solder

30. - T8A07

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

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

31. - T8B07

What is Doppler shift in reference to satellite communications?

Select	Answer
A	A special digital communications mode for some satellites
B	An observed change in signal frequency caused by relative motion between the satellite and Earth station
C	A change in the satellite orbit
D	A mode where the satellite receives signals on one band and transmits on another

32. - T8C02

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

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

33. - T8D09

What is CW?

Select	Answer
A	Another name for a Morse code transmission
B	A digital mode used primarily on 2 meter FM
C	A technique for coil winding
D	A type of electromagnetic propagation

34. - T9A08

What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

Select	Answer
A	50
B	112
C	19
D	12

35. - T9B07

Which of the following is true of PL-259 type coax connectors?

Select	Answer
A	They are a bayonet-type connector
B	They are watertight
C	They are commonly used at HF and VHF frequencies
D	They are preferred for microwave operation

Figure T-2