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. - T0A02

What health hazard is presented by electrical current flowing through the body?

Select	Answer
A	It may disrupt the electrical functions of cells
B	It may cause injury by heating tissue
C	It may cause involuntary muscle contractions
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	All these choices are correct
B	This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed
C	This type of tower must never be painted
D	This type of tower must never be grounded

3. - T0C13

Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

Select	Answer
A	Anyone who is near an antenna
B	The FCC
C	The station licensee
D	The local zoning board

4. - T1A03

What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

Select	Answer
A	It is required when transmitting emergency messages
B	It is encouraged
C	It is required when in contact with foreign stations
D	All these choices are correct

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	28.500 MHz to 28.600 MHz
C	28.100 MHz to 28.300 MHz
D	28.300 MHz to 28.500 MHz

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. - T1D03

When is it permissible to transmit messages encoded to obscure their meaning?

Select	Answer
A	Only during contests
B	Never
C	Only when transmitting control commands to space stations or radio control craft
D	Only when transmitting certain approved digital codes

8. - T1E07

When the control operator is not the station licensee, who is responsible for the proper operation of the station?

Select	Answer
A	Only the station licensee
B	All licensed amateurs who are present at the operation
C	Only the control operator
D	The control operator and the station licensee

9. - T1F02

How often must you identify with your FCC-assigned call sign when using tactical call signs such as “Race Headquarters”?

Select	Answer
A	Once during every hour
B	At the end of each communication and every ten minutes during a communication
C	At the end of every transmission
D	Never, the tactical call is sufficient

10. - T2A09

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

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

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	Use subaudible tones so both stations can share the frequency
C	Both stations should choose another frequency to avoid conflict
D	The stations should negotiate continued use of the frequency

12. - T2C04

What is RACES?

Select	Answer
A	A radio contest held in a short period, sometimes called a “sprint”
B	An international radio experimentation society
C	An FCC part 97 amateur radio service for civil defense communications during national emergencies
D	An emergency organization combining amateur radio and citizens band operators and frequencies

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

14. - T3B07

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

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

15. - T3C03

What is a characteristic of VHF signals received via auroral backscatter?

Select	Answer
A	They are often received from 10,000 miles or more
B	They are distorted and signal strength varies considerably
C	They occur only during winter nighttime hours
D	They are generally strongest when your antenna is aimed west

16. - T4A06

What signals are used in a computer-radio interface for digital mode operation?

Select	Answer
A	Antenna and RF power
B	Receive audio, transmit audio, and transmitter keying
C	Receive and transmit mode, status, and location
D	NMEA GPS location and DC power

17. - T4B02

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

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

18. - T5A12

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

Select	Answer
A	Pulse rate
B	Frequency
C	Wavelength
D	Speed

19. - T5B13

Which is equal to 2425 MHz?

Select	Answer
A	2.425 GHz
B	0.002425 GHz
C	24.25 GHz
D	2425 GHz

20. - T5C09

How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

Select	Answer
A	23.8 watts
B	3.8 watts
C	138 watts
D	0.7 watts

21. - T5D12

What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

Select	Answer
A	8 volts
B	20 volts
C	12 volts
D	0.2 volts

22. - T6A02

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

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

23. - T6B05

What type of transistor has a gate, drain, and source?

Select	Answer
A	Bipolar junction
B	Field-effect
C	Tesla-effect
D	Varistor

24. - T6C06

What is component 6 in figure T-2?

Select	Answer
A	Transistor
B	Resistor
C	Capacitor
D	Regulator IC

25. - T6D09

What is the name of a device that combines several semiconductors and other components into one package?

Select	Answer
A	Multi-pole relay
B	Transducer
C	Transformer
D	Integrated circuit

26. - T7A06

What device converts the RF input and output of a transceiver to another band?

Select	Answer
A	Phase converter
B	Low-pass filter
C	Transverter
D	High-pass filter

27. - T7B02

What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

Select	Answer
A	The audio amplifier of the transmitter is overloaded
B	The microphone gain of the transmitter is turned up too high
C	The deviation of an FM transmitter is set too low
D	The receiver is unable to reject strong signals outside the AM or FM band

28. - T7C07

What happens to power lost in a feed line?

Select	Answer
A	It is radiated as harmonics
B	It distorts the signal
C	It is converted into heat
D	It increases the SWR

29. - T7D11

Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

Select	Answer
A	Ensure that the circuit is not powered
B	Ensure that the circuit is grounded
C	Ensure that the circuit is operating at the correct frequency
D	Ensure that the applied voltages are correct

30. - T8A07

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

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

31. - T8B09

What causes spin fading of satellite signals?

Select	Answer
A	Rotation of the satellite and its antennas
B	Interfering signals within the satellite uplink band
C	Doppler shift of the received signal
D	Circular polarized noise interference radiated from the sun

32. - T8C03

What operating activity involves contacting as many stations as possible during a specified period?

Select	Answer
A	Contesting
B	Simulated emergency exercises
C	Public service events
D	Net operations

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 type of electromagnetic propagation
D	A technique for coil winding

34. - T9A08

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

Select	Answer
A	19
B	12
C	50
D	112

35. - T9B10

What is the electrical difference between RG-58 and RG-213 coaxial cable?

Select	Answer
A	RG-58 cable can handle higher power levels
B	RG-58 cable has two shields
C	There is no significant difference between the two types
D	RG-213 cable has less loss at a given frequency

Figure T-2