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

Anonymous User

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

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?

Select	Answer
A	Notify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels
B	Post a copy of FCC Part 97.13 in the station
C	All these choices are correct
D	Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas

2. - G0B05

Which of the following conditions will cause a ground fault circuit interrupter (GFCI) to disconnect AC power?

Select	Answer
A	Current flowing from one or more of the hot wires to the neutral wire
B	Current flowing from one or more of the hot wires directly to ground
C	Overvoltage on the hot wires
D	All these choices are correct

3. - G1A09

Which of the following frequencies is within the General class portion of the 15-meter band?

Select	Answer
A	21300 kHz
B	18155 kHz
C	14250 kHz
D	24900 kHz

4. - G1B06

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

Select	Answer
A	Only when such structures exceed 50 feet in height and are clearly visible 1,000 feet from the structure
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	Under no circumstances, FCC rules take priority
D	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

5. - G1C03

What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band?

Select	Answer
A	2.8 kHz
B	5.6 kHz
C	3 kHz
D	1.8 kHz

6. - G1D07

Volunteer Examiners are accredited by what organization?

Select	Answer
A	The Universal Licensing System
B	The Wireless Telecommunications Bureau
C	A Volunteer Examiner Coordinator
D	The Federal Communications Commission

7. - G1E12

When may third-party messages be transmitted via remote control?

Select	Answer
A	Only when the message is intended for third parties in areas where licensing is controlled by the FCC
B	Under any circumstances in which third party messages are permitted by FCC rules
C	Only when the message is intended for licensed radio amateurs
D	Under no circumstances except for emergencies

8. - G2A09

Why do most amateur stations use lower sideband on the 160-, 75-, and 40-meter bands?

Select	Answer
A	Because it is fully compatible with an AM detector
B	Lower sideband is more efficient than upper sideband at these frequencies
C	Lower sideband is the only sideband legal on these frequency bands
D	It is commonly accepted amateur practice

9. - G2B04

When selecting a CW transmitting frequency, what minimum separation from other stations should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	5 Hz to 50 Hz
B	150 Hz to 500 Hz
C	1 kHz to 3 kHz
D	3 kHz to 6 kHz

10. - G2C03

What does it mean when a CW operator sends “KN” at the end of a transmission?

Select	Answer
A	Closing station now
B	No US stations should call
C	Listening only for a specific station or stations
D	Operating full break-in

11. - G2D05

Which of the following indicates that you are looking for an HF contact with any station?

Select	Answer
A	Transmit an unmodulated carried for approximately 10 seconds, followed by “this is” and your call sign, and pause to listen -- repeat as necessary
B	Sign your call sign once, followed by the words “listening for a call” -- if no answer, change frequency and repeat
C	Repeat “CQ” a few times, followed by “this is,” then your call sign a few times, then pause to listen, repeat as necessary
D	Say “QTC” followed by “this is” and your call sign -- if no answer, change frequency and repeat

12. - G2E04

Which of the following is good practice when choosing a transmitting frequency to answer a station calling CQ using FT8?

Select	Answer
A	Find a clear frequency during the alternate time slot to the calling station
B	Find a clear frequency during the same time slot as the calling station
C	Call on any frequency in the waterfall except the station’s frequency
D	Always call on the station’s frequency

13. - G3A08

How can a geomagnetic storm affect HF propagation?

Select	Answer
A	Improve ground wave propagation
B	Degrade ground wave propagation
C	Improve high-latitude HF propagation
D	Degrade high-latitude HF propagation

14. - G3B02

What factors affect the MUF?

Select	Answer
A	Solar radiation and ionospheric disturbances
B	Time of day and season
C	All these choices are correct
D	Path distance and location

15. - G3C01

Which ionospheric region is closest to the surface of Earth?

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

16. - G4A03

How does a noise blanker work?

Select	Answer
A	By redirecting noise pulses into a filter capacitor
B	By temporarily increasing received bandwidth
C	By reducing receiver gain during a noise pulse
D	By clipping noise peaks

17. - G4B12

What effect can strong signals from nearby transmitters have on an antenna analyzer?

Select	Answer
A	Received power that interferes with SWR readings
B	All these choices are correct
C	Generation of harmonics which interfere with frequency readings
D	Desensitization which can cause intermodulation products which interfere with impedance readings

18. - G4C09

How can the effects of ground loops be minimized?

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

19. - G4D07

How much must the power output of a transmitter be raised to change the S meter reading on a distant receiver from S8 to S9?

Select	Answer
A	Approximately 1.5 times
B	Approximately 2 times
C	Approximately 4 times
D	Approximately 8 times

20. - G4E06

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

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

21. - G5A01

What happens when inductive and capacitive reactance are equal in a series LC circuit?

Select	Answer
A	Resonance causes impedance to be very low
B	Resonance causes impedance to be very high
C	Impedance is equal to the arithmetic mean of the inductance and capacitance
D	Impedance is equal to the geometric mean of the inductance and capacitance

22. - G5B12

What is the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?

Select	Answer
A	346 volts
B	173 volts
C	692 volts
D	245 volts

23. - G5C12

What is the capacitance of a 20-microfarad capacitor connected in series with a 50-microfarad capacitor?

Select	Answer
A	1,000 microfarads
B	14.3 microfarads
C	0.07 microfarads
D	70 microfarads

24. - G6A01

What is the minimum allowable discharge voltage for maximum life of a standard 12-volt lead-acid battery?

Select	Answer
A	8.5 volts
B	12 volts
C	10.5 volts
D	6 volts

25. - G6B06

What kind of device is an integrated circuit operational amplifier?

Select	Answer
A	MMIC
B	Digital
C	Analog
D	Programmable Logic

26. - G7A08

Which of the following is characteristic of a switchmode power supply as compared to a linear power supply?

Select	Answer
A	Faster switching time makes higher output voltage possible
B	High-frequency operation allows the use of smaller components
C	Fewer circuit components are required
D	Inherently more stable

27. - G7B01

What is the purpose of neutralizing an amplifier?

Select	Answer
A	To cut off the final amplifier during standby periods
B	To limit the modulation index
C	To keep the carrier on frequency
D	To eliminate self-oscillations

28. - G7C08

Which parameter affects receiver sensitivity?

Select	Answer
A	Input amplifier noise figure
B	All these choices are correct
C	Input amplifier gain
D	Demodulator stage bandwidth

29. - G8A06

Which of the following is characteristic of QPSK31?

Select	Answer
A	Its encoding provides error correction
B	Its bandwidth is approximately the same as BPSK31
C	All these choices are correct
D	It is sideband sensitive

30. - G8B13

Which of the following is an odd-order intermodulation product of frequencies F1 and F2?

Select	Answer
A	2F1-F2
B	3F1-F2
C	All these choices are correct
D	5F1-3F2

31. - G8C01

On what band do amateurs share channels with the unlicensed Wi-Fi service?

Select	Answer
A	902 MHz
B	2.4 GHz
C	432 MHz
D	10.7 GHz

32. - G9A08

If the SWR on an antenna feed line is 5:1, and a matching network at the transmitter end of the feed line is adjusted to present a 1:1 SWR to the transmitter, what is the resulting SWR on the feed line?

Select	Answer
A	5:1
B	Between 1:1 and 5:1 depending on the characteristic impedance of the line
C	1:1
D	Between 1:1 and 5:1 depending on the reflected power at the transmitter

33. - G9B04

What is the radiation pattern of a dipole antenna in free space in a plane containing the conductor?

Select	Answer
A	It has a pair of lobes on one side of the antenna and a single lobe on the other side
B	It is a figure-eight off both ends of the antenna
C	It is a circle (equal radiation in all directions)
D	It is a figure-eight at right angles to the antenna

34. - G9C11

What is a beta or hairpin match?

Select	Answer
A	A series capacitor selected to cancel the inductive reactance of a folded dipole antenna
B	A 1/4 wavelength section of 75-ohm coax in series with the feed point of a Yagi to provide impedance matching
C	A section of 300-ohm twin-lead transmission line used to match a folded dipole antenna
D	A shorted transmission line stub placed at the feed point of a Yagi antenna to provide impedance matching

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