US Amateur Radio - General (Element 3, 2023-2027) Practice Test

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US Amateur Radio - General (Element 3, 2023-2027) Practice Test

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1. - G0A10

What should be done if evaluation shows that a neighbor might experience more than the allowable limit of RF exposure from the main lobe of a directional antenna?

Select	Answer
A	Use an antenna with a higher front-to-back ratio
B	Take precautions to ensure that the antenna cannot be pointed in their direction when they are present
C	All these choices are correct
D	Change to a non-polarized antenna with higher gain

2. - G0B12

What is the purpose of a power supply interlock?

Select	Answer
A	To ensure that dangerous voltages are removed if the cabinet is opened
B	To prevent unauthorized changes to the circuit that would void the manufacturer’s warranty
C	To shut off the power supply if too much voltage is produced
D	To shut down the unit if it becomes too hot

3. - G1A03

On which of the following bands is image transmission prohibited?

Select	Answer
A	30 meters
B	20 meters
C	12 meters
D	160 meters

4. - G1B06

Under what conditions are state and local governments permitted to regulate amateur radio antenna structures?

Select	Answer
A	At any time and to any extent necessary to accomplish a legitimate purpose of the state or local entity, provided that proper filings are made with the FCC
B	Amateur Service communications must be reasonably accommodated, and regulations must constitute the minimum practical to accommodate a legitimate purpose of the state or local entity
C	Only when such structures exceed 50 feet in height and are clearly visible 1,000 feet from the structure
D	Under no circumstances, FCC rules take priority

5. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

Select	Answer
A	300 baud
B	56 kilobaud
C	19.6 kilobaud
D	1200 baud

6. - G1D11

What action is required to obtain a new General class license after a previously held license has expired and the two-year grace period has passed?

Select	Answer
A	The applicant must show proof of the appropriate expired license grant and pass the current Element 2 exam
B	Contact the FCC to have the license reinstated
C	There are no requirements other than being able to show a copy of the expired license
D	They must have a letter from the FCC showing they once held an amateur or commercial license

7. - G1E05

What are the restrictions on messages sent to a third party in a country with which there is a Third-Party Agreement?

Select	Answer
A	The message must be limited to no longer than 1 minute in duration and the name of the third party must be recorded in the station log
B	They must relate to amateur radio, or remarks of a personal character, or messages relating to emergencies or disaster relief
C	They must relate to emergencies or disaster relief
D	They must be for other licensed amateurs

8. - G2A08

What is the recommended way to break into a phone contact?

Select	Answer
A	Say “Breaker Breaker”
B	Say your call sign once
C	Say “CQ” followed by the call sign of either station
D	Say “QRZ” several times, followed by your call sign

9. - G2B10

Which of the following is good amateur practice for net management?

Select	Answer
A	All these choices are correct
B	Have a backup frequency in case of interference or poor conditions
C	Transmit the full net roster at the beginning of every session
D	Always use multiple sets of phonetics during check-in

10. - G2C09

What does the Q signal “QSL” mean?

Select	Answer
A	We have already confirmed the contact
B	We have worked before
C	I have received and understood
D	Send slower

11. - G2D03

What procedure may be used by Volunteer Monitors to localize a station whose continuous carrier is holding a repeater on in their area?

Select	Answer
A	Compare vertical and horizontal signal strengths on the input frequency
B	All these choices are correct
C	Compare beam headings on the repeater input from their home locations with that of other Volunteer Monitors
D	Compare signal strengths between the input and output of the repeater

12. - G2E10

Which of the following is a way to establish contact with a digital messaging system gateway station?

Select	Answer
A	Send QRL in Morse code
B	Send an email to the system control operator
C	Transmit a connect message on the station’s published frequency
D	Respond when the station broadcasts its SSID

13. - G3A14

How is long distance radio communication usually affected by the charged particles that reach Earth from solar coronal holes?

Select	Answer
A	HF communication is improved
B	VHF/UHF ducting is disturbed
C	VHF/UHF ducting is improved
D	HF communication is disturbed

14. - G3B04

Which of the following is a way to determine current propagation on a desired band from your station?

Select	Answer
A	All these choices are correct
B	Check the A-index
C	Send a series of dots and listen for echoes
D	Use a network of automated receiving stations on the internet to see where your transmissions are being received

15. - G3C01

Which ionospheric region is closest to the surface of Earth?

Select	Answer
A	The E region
B	The D region
C	The F2 region
D	The F1 region

16. - G4A07

What happens as a receiver’s noise reduction control level is increased?

Select	Answer
A	CW signals may become severely attenuated
B	Received frequency may become unstable
C	Received frequency may shift several kHz
D	Received signals may become distorted

17. - G4B01

What item of test equipment contains horizontal and vertical channel amplifiers?

Select	Answer
A	A signal generator
B	An ohmmeter
C	An oscilloscope
D	An ammeter

18. - G4C12

Why must all metal enclosures of station equipment be grounded?

Select	Answer
A	It ensures that hazardous voltages cannot appear on the chassis
B	It ensures that the neutral wire is grounded
C	It prevents signal overload
D	It prevents a blown fuse in the event of an internal short circuit

19. - G4D04

What does an S meter measure?

Select	Answer
A	Transmitter power output
B	Impedance
C	Carrier suppression
D	Received signal strength

20. - G4E06

What is one disadvantage of using a shortened mobile antenna as opposed to a full-size antenna?

Select	Answer
A	Q of the antenna will be very low
B	Harmonic radiation may increase
C	Short antennas are more likely to cause distortion of transmitted signals
D	Operating bandwidth may be very limited

21. - G5A06

How does a capacitor react to AC?

Select	Answer
A	As the amplitude of the applied AC increases, the reactance decreases
B	As the frequency of the applied AC increases, the reactance decreases
C	As the frequency of the applied AC increases, the reactance increases
D	As the amplitude of the applied AC increases, the reactance increases

22. - G5B04

How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?

Select	Answer
A	60 watts
B	24 watts
C	2.4 watts
D	6 watts

23. - G5C10

What is the inductance of three 10-millihenry inductors connected in parallel?

Select	Answer
A	3.3 henries
B	30 millihenries
C	0.30 henries
D	3.3 millihenries

24. - G6A02

What is an advantage of batteries with low internal resistance?

Select	Answer
A	High discharge current
B	Rapid recharge
C	High voltage
D	Long life

25. - G6B03

Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?

Select	Answer
A	High power handling capability
B	Better suited for power supply regulation
C	Low power consumption
D	Better suited for RF amplification

26. - G7A13

Which symbol in Figure G7-1 represents a tapped inductor?

Select	Answer
A	Symbol 1
B	Symbol 7
C	Symbol 6
D	Symbol 11

27. - G7B02

Which of these classes of amplifiers has the highest efficiency?

Select	Answer
A	Class B
B	Class C
C	Class AB
D	Class A

28. - G7C01

What circuit is used to select one of the sidebands from a balanced modulator?

Select	Answer
A	Filter
B	IF amplifier
C	RF amplifier
D	Carrier oscillator

29. - G8A01

How is direct binary FSK modulation generated?

Select	Answer
A	By keying an FM transmitter with a sub-audible tone
B	By reconfiguring the CW keying input to act as a tone generator
C	By using a transceiver’s computer data interface protocol to change frequencies
D	By changing an oscillator’s frequency directly with a digital control signal

30. - G8B07

What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?

Select	Answer
A	101.75 Hz
B	416.7 Hz
C	60 kHz
D	5 kHz

31. - G8C09

Which is true of mesh network microwave nodes?

Select	Answer
A	If one node fails, a packet may still reach its target station via an alternate node
B	Links between two nodes in a network may have different frequencies and bandwidths
C	Having more nodes increases signal strengths
D	More nodes reduce overall microwave out of band interference

32. - G9A04

What causes reflected power at an antenna’s feed point?

Select	Answer
A	Using more transmitter power than the antenna can handle
B	Operating an antenna at its resonant frequency
C	Feeding the antenna with unbalanced feed line
D	A difference between feed line impedance and antenna feed point impedance

33. - G9B10

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

Select	Answer
A	8 feet
B	24 feet
C	33 feet
D	16 feet

34. - G9C04

How does antenna gain in dBi compare to gain stated in dBd for the same antenna?

Select	Answer
A	Gain in dBi is 2.15 dB lower
B	Gain in dBd is 1.25 dBd higher
C	Gain in dBi is 2.15 dB higher
D	Gain in dBd is 1.25 dBd lower

35. - G9D10

In which direction or directions does an electrically small loop (less than 1/10 wavelength in circumference) have nulls in its radiation pattern?

Select	Answer
A	In the plane of the loop
B	Broadside and in the plane of the loop
C	Broadside to the loop
D	Electrically small loops are omnidirectional

Figure G7-1