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. - T0A05

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

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

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

3. - T0C06

Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

Select	Answer
A	By calculation based on computer modeling
B	All these choices are correct
C	By calculation based on FCC OET Bulletin 65
D	By measurement of field strength using calibrated equipment

4. - T1A07

What is the FCC Part 97 definition of a space station?

Select	Answer
A	An amateur station using amateur radio satellites for relay of signals
B	An amateur station located more than 50 km above Earth's surface
C	A manned satellite orbiting Earth
D	Any satellite orbiting Earth

5. - T1B05

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

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

6. - T1C02

Who may select a desired call sign under the vanity call sign rules?

Select	Answer
A	Only a licensed amateur who has been licensed continuously for more than 10 years
B	Any licensed amateur
C	Only a licensed amateur with an Amateur Extra Class license
D	Only a licensed amateur with a General or Amateur Extra Class license

7. - T1D08

In which of the following circumstances may the control operator of an amateur station receive compensation for operating that station?

Select	Answer
A	All these choices are correct
B	When the communication is related to the sale of amateur equipment by the control operator's employer
C	When the communication is made to obtain emergency information for a local broadcast station
D	When the communication is incidental to classroom instruction at an educational institution

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

Select	Answer
A	The frequency authorized by the frequency coordinator
B	The highest class of operator license held by anyone on the premises
C	The class of operator license held by the control operator
D	The frequencies printed on the license grant

9. - T1F07

Which of the following restrictions apply when a non-licensed person is allowed to speak to a foreign station using a station under the control of a licensed amateur operator?

Select	Answer
A	All these choices are correct
B	The person must be a U.S. citizen
C	The foreign station must be in a country with which the U.S. has a third party agreement
D	The licensed control operator must do the station identification

10. - T2A07

What is meant by "repeater offset”?

Select	Answer
A	The repeater has a time delay to prevent interference
B	The number of simultaneous transmit frequencies used by a repeater
C	The repeater station identification is done on a separate frequency
D	The difference between a repeater’s transmit and receive frequencies

11. - T2B08

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

Select	Answer
A	Interference is inevitable, so no action is required
B	Both stations should choose another frequency to avoid conflict
C	Use subaudible tones so both stations can share the frequency
D	The stations should negotiate continued use of the frequency

12. - T2C03

What technique is used to ensure that voice messages containing unusual words are received correctly?

Select	Answer
A	Speak very loudly into the microphone
B	Spell the words using a standard phonetic alphabet
C	All these choices are correct
D	Send the words by voice and Morse code

13. - T3A01

Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

Select	Answer
A	VHF ionospheric propagation is very sensitive to path length
B	The signal path encounters different concentrations of water vapor
C	Multipath propagation cancels or reinforces signals
D	All these choices are correct

14. - T3B04

What is the velocity of a radio wave traveling through free space?

Select	Answer
A	Speed inversely proportional to its wavelength
B	Speed of light
C	Speed that increases as the frequency increases
D	Speed of sound

15. - T3C06

What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Select	Answer
A	F2 region refraction
B	Tropospheric ducting
C	D region refraction
D	Faraday rotation

16. - T4A03

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

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

17. - T4B11

Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

Select	Answer
A	Your call sign
B	The codec type being used
C	All these choices are correct
D	Your output power

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Ohms
B	Mhos
C	Coulombs
D	Siemens

19. - T5B07

Which is equal to 3.525 MHz?

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

20. - T5C12

What is impedance?

Select	Answer
A	The inverse of resistance
B	The Q or Quality Factor of a component
C	The opposition to AC current flow
D	The power handling capability of a component

21. - T5D13

In which type of circuit is DC current the same through all components?

Select	Answer
A	Parallel
B	Series
C	Branch
D	Resonant

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Varistor
B	Diode
C	Capacitor
D	Inductor

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Reactor
B	Transistor
C	Resistor
D	Transformer

24. - T6C01

What is the name of an electrical wiring diagram that uses standard component symbols?

Select	Answer
A	Flow chart
B	Bill of materials
C	Connector pinout
D	Schematic

25. - T6D04

Which of the following displays an electrical quantity as a numeric value?

Select	Answer
A	Meter
B	Relay
C	Potentiometer
D	Transistor

26. - T7A07

What is the function of a transceiver’s PTT input?

Select	Answer
A	Switches transceiver from receive to transmit when grounded
B	Provides a transmit tuning tone when grounded
C	Input for a key used to send CW
D	Input for a preamplifier tuning tone

27. - T7B05

How can fundamental overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

Select	Answer
A	Switch the transmitter to a narrow-band mode
B	Block the interfering signal with a filter on the amateur transmitter
C	Switch the transmitter from FM to SSB
D	Block the amateur signal with a filter at the antenna input of the affected receiver

28. - T7C11

What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

Select	Answer
A	It cannot be used at below freezing temperatures
B	It requires special techniques to prevent moisture in the cable
C	It cannot be used for VHF or UHF antennas
D	It has more loss per foot

29. - T7D01

Which instrument would you use to measure electric potential?

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

30. - T8A09

What is the approximate bandwidth of a VHF repeater FM voice signal?

Select	Answer
A	Between 10 and 15 kHz
B	Between 50 and 125 kHz
C	About 150 kHz
D	Less than 500 Hz

31. - T8B04

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

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

32. - T8C01

Which of the following methods is used to locate sources of noise interference or jamming?

Select	Answer
A	Phase locking
B	Radio direction finding
C	Doppler radar
D	Echolocation

33. - T8D08

Which of the following is included in packet radio transmissions?

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

34. - T9A02

Which of the following describes a type of antenna loading?

Select	Answer
A	Strengthening the radiating elements of a beam antenna to better resist wind damage
B	Electrically lengthening by inserting inductors in radiating elements
C	Inserting a resistor in the radiating portion of the antenna to make it resonant
D	Installing a spring in the base of a mobile vertical antenna to make it more flexible

35. - T9B03

Why is coaxial cable the most common feed line for amateur radio antenna systems?

Select	Answer
A	It is less expensive than any other type of feed line
B	It can handle more power than any other type of feed line
C	It has less loss than any other type of feed line
D	It is easy to use and requires few special installation considerations