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. - G0B02

According to the National Electrical Code, what is the minimum wire size that may be used safely for wiring with a 20-ampere circuit breaker?

Select	Answer
A	AWG number 16
B	AWG number 20
C	AWG number 8
D	AWG number 12

3. - G1A06

Which of the following applies when the FCC rules designate the amateur service as a secondary user on a band?

Select	Answer
A	Amateur stations must not cause harmful interference to primary users and must accept interference from primary users
B	Amateur stations may use the band only during emergencies
C	Amateur stations may only operate during specific hours of the day, while primary users are permitted 24-hour use of the band
D	Amateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station

4. - G1B04

Which of the following transmissions is permitted for all amateur stations?

Select	Answer
A	Unidentified transmissions of less than 10 seconds duration for test purposes only
B	Occasional retransmission of weather and propagation forecast information from US government stations
C	Automatic retransmission of other amateur signals by any amateur station
D	Encrypted messages, if not intended to facilitate a criminal act

5. - G1C10

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 10-meter band?

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

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	There are no requirements other than being able to show a copy of the expired license
C	They must have a letter from the FCC showing they once held an amateur or commercial license
D	Contact the FCC to have the license reinstated

7. - G1E11

On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?

Select	Answer
A	On any band segment where digital operation is permitted
B	Only in the non-phone Extra Class segments of the bands
C	Anywhere in the 6-meter or shorter wavelength bands, and in limited segments of some of the HF bands
D	Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands

8. - G2A10

Which of the following statements is true of VOX operation versus PTT operation?

Select	Answer
A	It occupies less bandwidth
B	It provides more power output
C	It allows “hands free” operation
D	The received signal is more natural sounding

9. - G2B06

How can you avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

Select	Answer
A	Listen for 2 minutes before calling CQ
B	Send “QSY” on CW or if using phone, announce “the frequency is in use,” then give your call sign and listen for a response
C	Send the letter “V” in Morse code several times and listen for a response, or say “test” several times and listen for a response
D	Send “QRL?” on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign

10. - G2C06

What does the term “zero beat” mean in CW operation?

Select	Answer
A	Operating split to avoid interference on frequency
B	Matching the speed of the transmitting station
C	Matching the transmit frequency to the frequency of a received signal
D	Sending without error

11. - G2D01

What is the Volunteer Monitor Program?

Select	Answer
A	Amateur volunteers who conduct frequency coordination for amateur VHF repeaters
B	Amateur volunteers who conduct amateur licensing examinations
C	Amateur volunteers who use their station equipment to help civil defense organizations in times of emergency
D	Amateur volunteers who are formally enlisted to monitor the airwaves for rules violations

12. - G2E15

Which of the following is a common location for FT8?

Select	Answer
A	Approximately 14.110 MHz to 14.113 MHz
B	Anywhere in the CW portion of the band
C	Anywhere in the voice portion of the band
D	Approximately 14.074 MHz to 14.077 MHz

13. - G3A10

What causes HF propagation conditions to vary periodically in a 26- to 28-day cycle?

Select	Answer
A	Rotation of the Sun’s surface layers around its axis
B	Long term oscillations in the upper atmosphere
C	Cyclic variation in Earth’s radiation belts
D	The position of the Moon in its orbit

14. - G3B10

What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the E region?

Select	Answer
A	180 miles
B	2,500 miles
C	1,200 miles
D	12,000 miles

15. - G3C06

What is a characteristic of HF scatter?

Select	Answer
A	There are very large, sudden swings in signal strength
B	Scatter propagation occurs only at night
C	Signals have a fluttering sound
D	Phone signals have high intelligibility

16. - G4A02

What is the benefit of using the opposite or “reverse” sideband when receiving CW?

Select	Answer
A	It may be possible to reduce or eliminate interference from other signals
B	Interference from impulse noise will be eliminated
C	Accidental out-of-band operation can be prevented
D	More stations can be accommodated within a given signal passband

17. - G4B02

Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

Select	Answer
A	An oscilloscope uses less power
B	Complex waveforms can be measured
C	Complex impedances can be easily measured
D	Greater precision

18. - G4C09

How can the effects of ground loops be minimized?

Select	Answer
A	Avoid using lock washers and star washers when making ground connections
B	Bond equipment enclosures together
C	Connect all ground conductors in series
D	Connect the AC neutral conductor to the ground wire

19. - G4D11

How close to the upper edge of a band’s phone segment should your displayed carrier frequency be when using 3 kHz wide USB?

Select	Answer
A	At least 1 kHz below the edge of the segment
B	At least 3 kHz above the edge of the band
C	At least 1 kHz above the edge of the segment
D	At least 3 kHz below the edge of the band

20. - G4E10

Why should a series diode be connected between a solar panel and a storage battery that is being charged by the panel?

Select	Answer
A	To prevent overload by regulating the charging voltage
B	To prevent discharge of the battery through the panel during times of low or no illumination
C	To prevent damage to the battery due to excessive voltage at high illumination levels
D	To limit the current flowing from the panel to a safe value

21. - G5A11

What letter is used to represent reactance?

Select	Answer
A	Z
B	B
C	X
D	Y

22. - G5B13

What is the output PEP of an unmodulated carrier if the average power is 1060 watts?

Select	Answer
A	1500 watts
B	530 watts
C	2120 watts
D	1060 watts

23. - G5C03

What is the total resistance of a 10-, a 20-, and a 50-ohm resistor connected in parallel?

Select	Answer
A	5.9 ohms
B	0.17 ohms
C	17 ohms
D	80 ohms

24. - G6A07

What are the operating points for a bipolar transistor used as a switch?

Select	Answer
A	Enhancement and depletion modes
B	Saturation and cutoff
C	The active region (between cutoff and saturation)
D	Peak and valley current points

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. - G7A04

What is characteristic of a half-wave rectifier in a power supply?

Select	Answer
A	More current can be drawn from the half-wave rectifier
B	The ripple frequency is twice that of a full-wave rectifier
C	Only one diode is required
D	The output voltage is two times the peak input voltage

27. - G7B11

For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?

Select	Answer
A	SSB
B	All these choices are correct
C	AM
D	FM

28. - G7C07

What term specifies a filter’s attenuation inside its passband?

Select	Answer
A	Insertion loss
B	Ultimate rejection
C	Return loss
D	Q

29. - G8A10

What is meant by the term “flat-topping,” when referring to an amplitude-modulated phone signal?

Select	Answer
A	Signal distortion caused by insufficient collector current
B	The transmitter’s automatic level control (ALC) is properly adjusted
C	Signal distortion caused by excessive drive or speech levels
D	The transmitter’s carrier is properly suppressed

30. - G8B03

What is another term for the mixing of two RF signals?

Select	Answer
A	Synthesizing
B	Phase inversion
C	Heterodyning
D	Frequency inversion

31. - G8C15

What does an FT8 signal report of +3 mean?

Select	Answer
A	The signal is 3 times the noise level of an equivalent SSB signal
B	The signal is S3 (weak signals)
C	The signal-to-noise ratio is equivalent to +3dB in a 2.5 kHz bandwidth
D	The signal is 3 dB over S9

32. - G9A09

What standing wave ratio results from connecting a 50-ohm feed line to a 200-ohm resistive load?

Select	Answer
A	1:2
B	1:4
C	2:1
D	4:1

33. - G9B09

Which of the following is an advantage of using a horizontally polarized as compared to a vertically polarized HF antenna?

Select	Answer
A	Lower feed point impedance
B	Shorter radials
C	Lower ground losses
D	Lower radiation resistance

34. - G9C01

Which of the following would increase the bandwidth of a Yagi antenna?

Select	Answer
A	Loading coils in series with the element
B	Tapered-diameter elements
C	Closer element spacing
D	Larger-diameter elements

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