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	The power supply ripple would greatly increase
C	Excessive current could cause a fire
D	All these choices are correct

2. - T0B02

What is required when climbing an antenna tower?

Select	Answer
A	Always wear an approved climbing harness
B	Use appropriate tie-off to the tower at all times
C	All these choices are correct
D	Have sufficient training on safe tower climbing techniques

3. - T0C05

Why do exposure limits vary with frequency?

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

4. - T1A02

Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

Select	Answer
A	All these choices are correct
B	Homeland Security
C	The FCC
D	FEMA

5. - T1B04

Which amateur band includes 146.52 MHz?

Select	Answer
A	20 meters
B	2 meters
C	6 meters
D	70 centimeters

6. - T1C09

What is the grace period for renewal if an amateur license expires?

Select	Answer
A	Two years
B	Ten years
C	Five years
D	Three years

7. - T1D04

Under what conditions is an amateur station authorized to transmit music using a phone emission?

Select	Answer
A	When the music is transmitted above 1280 MHz
B	When the music produces no spurious emissions
C	When transmissions are limited to less than three minutes per hour
D	When incidental to an authorized retransmission of manned spacecraft communications

8. - T1E01

When may an amateur station transmit without a control operator?

Select	Answer
A	Never
B	When using automatic control, such as in the case of a repeater
C	When the station licensee is away and another licensed amateur is using the station
D	When the transmitting station is an auxiliary station

9. - T1F05

What method of call sign identification is required for a station transmitting phone signals?

Select	Answer
A	Send the call sign using a CW or phone emission
B	Send the call sign followed by the indicator RPT
C	Send the call sign followed by the indicator R
D	Send the call sign using only a phone emission

10. - T2A05

How should you respond to a station calling CQ?

Select	Answer
A	Transmit the other station’s call sign followed by your call sign
B	Transmit a signal report followed by your call sign
C	Transmit your call sign followed by the other station’s call sign
D	Transmit "CQ" followed by the other station’s call sign

11. - T2B12

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

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

12. - T2C11

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

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

13. - T3A04

What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

Select	Answer
A	Signals have an echo effect
B	Received signal strength is reduced
C	The modulation sidebands might become inverted
D	Nothing significant will happen

14. - T3B05

What is the relationship between wavelength and frequency?

Select	Answer
A	Wavelength gets longer as frequency increases
B	Wavelength and frequency are unrelated
C	Wavelength and frequency increase as path length increases
D	Wavelength gets shorter as frequency increases

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

16. - T4A02

Which of the following should be considered when selecting an accessory SWR meter?

Select	Answer
A	The frequency and power level at which the measurements will be made
B	The distance that the meter will be located from the antenna
C	All these choices are correct
D	The types of modulation being used at the station

17. - T4B10

Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

Select	Answer
A	500 Hz
B	1000 Hz
C	5000 Hz
D	2400 Hz

18. - T5A12

What describes the number of times per second that an alternating current makes a complete cycle?

Select	Answer
A	Speed
B	Frequency
C	Pulse rate
D	Wavelength

19. - T5B06

Which is equal to 3000 milliamperes?

Select	Answer
A	3,000,000 amperes
B	0.3 amperes
C	0.003 amperes
D	3 amperes

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	MH
B	Mhz
C	MHz
D	mh

21. - T5D01

What formula is used to calculate current in a circuit?

Select	Answer
A	I = E - R
B	I = E + R
C	I = E  R
D	I = E / R

22. - T6A12

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

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

23. - T6B07

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

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

24. - T6C03

What is component 2 in figure T-1?

Select	Answer
A	Resistor
B	Transistor
C	Connector
D	Indicator lamp

25. - T6D08

Which of the following is combined with an inductor to make a resonant circuit?

Select	Answer
A	Potentiometer
B	Capacitor
C	Zener diode
D	Resistor

26. - T7A10

What device increases the transmitted output power from a transceiver?

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

27. - T7B06

Which of the following actions should you take if a neighbor tells you that your station’s transmissions are interfering with their radio or TV reception?

Select	Answer
A	Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
B	Immediately turn off your transmitter and contact the nearest FCC office for assistance
C	All these choices are correct
D	Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel

28. - T7C03

What does a dummy load consist of?

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

29. - T7D08

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

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

30. - T8A02

What type of modulation is commonly used for VHF packet radio transmissions?

Select	Answer
A	FM or PM
B	SSB
C	AM
D	PSK

31. - T8B04

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

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

32. - T8C07

What is Voice Over Internet Protocol (VoIP)?

Select	Answer
A	A method of delivering voice communications over the internet using digital techniques
B	A technique employed to “spot” DX stations via the internet
C	A set of rules specifying how to identify your station when linked over the internet to another station
D	A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet

33. - T8D04

What type of transmission is indicated by the term "NTSC?"

Select	Answer
A	A Normal Transmission mode in Static Circuit
B	A frame compression scheme for TV signals
C	A special mode for satellite uplink
D	An analog fast-scan color TV signal

34. - T9A05

Which of the following increases the resonant frequency of a dipole antenna?

Select	Answer
A	Shortening it
B	Inserting coils in series with radiating wires
C	Adding capacitive loading to the ends of the radiating wires
D	Lengthening it

35. - T9B04

What is the major function of an antenna tuner (antenna coupler)?

Select	Answer
A	It matches the antenna system impedance to the transceiver's output impedance
B	It allows an antenna to be used on both transmit and receive
C	It helps a receiver automatically tune in weak stations
D	It automatically selects the proper antenna for the frequency band being used

Figure T-2

Figure T-1