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. - T0A06

What is a good way to guard against electrical shock at your station?

Select	Answer
A	Connect all AC powered station equipment to a common safety ground
B	Install mechanical interlocks in high-voltage circuits
C	Use three-wire cords and plugs for all AC powered equipment
D	All these choices are correct

2. - T0B07

Which of the following is an important safety rule to remember when using a crank-up tower?

Select	Answer
A	This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed
B	All these choices are correct
C	This type of tower must never be painted
D	This type of tower must never be grounded

3. - T0C03

How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?

Select	Answer
A	There is no adjustment allowed for lower duty cycle
B	It decreases by 50 percent
C	It increases by a factor of 2
D	It increases by a factor of 3

4. - T1A04

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

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

5. - T1B07

Which of the following VHF/UHF band segments are limited to CW only?

Select	Answer
A	All these choices are correct
B	219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
C	50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz
D	902.0 MHz to 902.1 MHz

6. - T1C06

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

Select	Answer
A	From any vessel or craft located in international waters and documented or registered in the United States
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 anywhere within International Telecommunication Union (ITU) Regions 2 and 3

7. - T1D09

When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

Select	Answer
A	When such communications are directly related to the immediate safety of human life or protection of property
B	Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
C	Never
D	When broadcasting communications to or from the space shuttle

8. - T1E09

Which of the following are required for remote control operation?

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

9. - T1F10

Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?

Select	Answer
A	Both the originating station and the repeater owner
B	The owner of the repeater
C	The control operator of the repeater
D	The control operator of the originating station

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	“QSY” followed by your call sign
C	“CQ CQ” followed by the repeater’s call sign
D	The repeater call sign followed by the station’s call sign

11. - T2B02

What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

Select	Answer
A	Carrier squelch
B	CTCSS
C	Tone burst
D	DTMF

12. - T2C06

What is the Amateur Radio Emergency Service (ARES)?

Select	Answer
A	A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
B	A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
C	A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
D	A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency

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	Transmission rates must be increased by a factor equal to the number of separate paths observed
D	Error rates are likely to increase

14. - T3B07

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

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

15. - T3C11

Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

Select	Answer
A	Radio waves are blocked by dust particles
B	Radio signals move somewhat faster than the speed of light
C	Radio waves are not blocked by dust particles
D	The atmosphere refracts radio waves slightly

16. - T4A12

What is an electronic keyer?

Select	Answer
A	A device for voice activated switching from receive to transmit
B	A device that assists in manual sending of Morse code
C	A device for switching antennas from transmit to receive
D	An interlock to prevent unauthorized use of a radio

17. - T4B02

Which of the following can be used to enter a transceiver’s operating frequency?

Select	Answer
A	The CTCSS or DTMF encoder
B	The keypad or VFO knob
C	The Automatic Frequency Control
D	All these choices are correct

18. - T5A07

Why are metals generally good conductors of electricity?

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

19. - T5B07

Which is equal to 3.525 MHz?

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

20. - T5C01

What describes the ability to store energy in an electric field?

Select	Answer
A	Resistance
B	Capacitance
C	Tolerance
D	Inductance

21. - T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

Select	Answer
A	1.5 volts
B	0.25 volts
C	2.5 volts
D	1 volt

22. - T6A02

What type of component is often used as an adjustable volume control?

Select	Answer
A	Transformer
B	Power resistor
C	Potentiometer
D	Fixed resistor

23. - T6B02

What electronic component allows current to flow in only one direction?

Select	Answer
A	Resistor
B	Fuse
C	Diode
D	Driven element

24. - T6C04

What is component 3 in figure T-1?

Select	Answer
A	Transistor
B	Ground symbol
C	Resistor
D	Lamp

25. - T6D01

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Select	Answer
A	Rectifier
B	Amplifier
C	Transformer
D	Reflector

26. - T7A02

What is a transceiver?

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

27. - T7B09

What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

Select	Answer
A	Add a high-pass filter to the TV antenna input
B	Add a preamplifier to the TV antenna input
C	Be sure all TV feed line coaxial connectors are installed properly
D	Add a low-pass filter to the TV antenna input

28. - T7C04

What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

Select	Answer
A	1:1
B	Zero
C	Full Scale
D	50:50

29. - T7D01

Which instrument would you use to measure electric potential?

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

30. - T8A03

Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?

Select	Answer
A	PM
B	SSB
C	DRM
D	FM

31. - T8B07

What is Doppler shift in reference to satellite communications?

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

32. - T8C09

Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

Select	Answer
A	D-STAR
B	EchoLink
C	DMR
D	IRLP

33. - T8D02

What is a “talkgroup” on a DMR repeater?

Select	Answer
A	A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
B	A group of operators sharing common interests
C	A way for groups of users to share a channel at different times without hearing other users on the channel
D	A net that meets at a specified time

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

35. - T9B11

Which of the following types of feed line has the lowest loss at VHF and UHF?

Select	Answer
A	75-ohm flexible coax
B	Air-insulated hardline
C	50-ohm flexible coax
D	Multi-conductor unbalanced cable

Figure T-1