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	Voltage transients from kickback diodes
C	Charge stored in filter capacitors
D	Circulating currents in the dc filter

2. - T0B11

Which of the following establishes grounding requirements for an amateur radio tower or antenna?

Select	Answer
A	Local electrical codes
B	FAA tower lighting regulations
C	FCC Part 97 rules
D	UL recommended practices

3. - T0C09

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

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

4. - T1A02

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

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

5. - T1B01

Which of the following frequency ranges are available for phone operation by Technician licensees?

Select	Answer
A	28.050 MHz to 28.150 MHz
B	28.300 MHz to 28.500 MHz
C	28.500 MHz to 28.600 MHz
D	28.100 MHz to 28.300 MHz

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 any vessel or craft located in international waters and documented or registered in the United States
D	From within any country that is a member of the United Nations

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 incidental to an authorized retransmission of manned spacecraft communications
C	When the music produces no spurious emissions
D	When transmissions are limited to less than three minutes per hour

8. - T1E09

Which of the following are required for remote control operation?

Select	Answer
A	The control operator must indirectly manipulate the controls
B	The control operator must be at the control point
C	A control operator is required at all times
D	All these choices are correct

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 R
C	Send the call sign followed by the indicator RPT
D	Send the call sign using only a phone emission

10. - T2A09

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

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

11. - T2B04

Which of the following could be the reason you are unable to access a repeater whose output you can hear?

Select	Answer
A	Improper transceiver offset
B	You are using the wrong CTCSS tone
C	You are using the wrong DCS code
D	All these choices are correct

12. - T2C10

What information is contained in the preamble of a formal traffic message?

Select	Answer
A	The email address of the originating station
B	The telephone number of the addressee
C	Information needed to track the message
D	The address of the intended recipient

13. - T3A05

When using a directional antenna, how might your station be able to communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?

Select	Answer
A	Try the long path
B	Increase the antenna SWR
C	Change from vertical to horizontal polarization
D	Try to find a path that reflects signals to the repeater

14. - T3B06

What is the formula for converting frequency to approximate wavelength in meters?

Select	Answer
A	Wavelength in meters equals frequency in hertz divided by 300
B	Wavelength in meters equals frequency in hertz multiplied by 300
C	Wavelength in meters equals frequency in megahertz divided by 300
D	Wavelength in meters equals 300 divided by frequency in megahertz

15. - T3C01

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

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

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 provide a good counterpoise for the antenna
D	To avoid RF interference

17. - T4B07

What does a DMR “code plug” contain?

Select	Answer
A	Access information for repeaters and talkgroups
B	The codec for digitizing audio
C	Your call sign in CW for automatic identification
D	The DMR software version

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	Wavelength
D	Pulse rate

19. - T5B07

Which is equal to 3.525 MHz?

Select	Answer
A	3,525,000 kHz
B	35.25 kHz
C	0.003525 kHz
D	3525 kHz

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	mh
B	MH
C	MHz
D	Mhz

21. - T5D09

What is the current through a 24-ohm resistor connected across 240 volts?

Select	Answer
A	0.1 amperes
B	24,000 amperes
C	216 amperes
D	10 amperes

22. - T6A12

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

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

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. - T6C10

What is component 3 in figure T-3?

Select	Answer
A	Connector
B	Variable inductor
C	Meter
D	Variable capacitor

25. - T6D07

Which of the following is commonly used as a visual indicator?

Select	Answer
A	FET
B	Zener diode
C	LED
D	Bipolar transistor

26. - T7A05

What is the name of a circuit that generates a signal at a specific frequency?

Select	Answer
A	Reactance modulator
B	Phase modulator
C	Oscillator
D	Low-pass filter

27. - T7B04

Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

Select	Answer
A	Preamplifier
B	Ferrite choke
C	Low-pass filter
D	Band-pass filter

28. - T7C05

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

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

29. - T7D02

How is a voltmeter connected to a component to measure applied voltage?

Select	Answer
A	In phase
B	In parallel
C	In quadrature
D	In series

30. - T8A10

What is the approximate bandwidth of AM fast-scan TV transmissions?

Select	Answer
A	About 3 MHz
B	About 1 MHz
C	More than 10 MHz
D	About 6 MHz

31. - T8B05

What is a satellite beacon?

Select	Answer
A	A transmission from a satellite that contains status information
B	A reflective surface on the satellite
C	An indicator light that shows where to point your antenna
D	The primary transmit antenna on the satellite

32. - T8C04

Which of the following is good procedure when contacting another station in a contest?

Select	Answer
A	All these choices are correct
B	Sign only the last two letters of your call if there are many other stations calling
C	Contact the station twice to be sure that you are in his log
D	Send only the minimum information needed for proper identification and the contest exchange

33. - T8D08

Which of the following is included in packet radio transmissions?

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

34. - T9A08

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

Select	Answer
A	12
B	112
C	19
D	50

35. - T9B12

What is standing wave ratio (SWR)?

Select	Answer
A	The transmitter efficiency ratio
B	A measure of how well a load is matched to a transmission line
C	An indication of the quality of your station’s ground connection
D	The ratio of amplifier power output to input

Figure T-2

Figure T-3