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

2. - G0B11

Which of the following is required for lightning protection ground rods?

Select	Answer
A	Bends in ground wires must be made as close as possible to a right angle
B	They must be bonded together with all other grounds
C	Lightning grounds must be connected to all ungrounded wiring
D	They must be bonded to all buried water and gas lines

3. - G1A01

On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?

Select	Answer
A	60 meters, 30 meters, 17 meters, and 12 meters
B	80 meters, 20 meters, 15 meters, and 10 meters
C	80 meters, 40 meters, 20 meters, and 15 meters
D	160 meters, 60 meters, 15 meters, and 12 meters

4. - G1B01

What is the maximum height above ground for an antenna structure not near a public use airport without requiring notification to the FAA and registration with the FCC?

Select	Answer
A	50 feet
B	100 feet
C	250 feet
D	200 feet

5. - G1C06

What is the limit for transmitter power on the 1.8 MHz band?

Select	Answer
A	1500 watts PEP output
B	1000 watts PEP output
C	200 watts PEP output
D	1200 watts PEP output

6. - G1D12

When operating a station in South America by remote control over the internet from the US, what regulations apply?

Select	Answer
A	Those of the remote station’s country and the FCC’s third-party regulations
B	Only those of the remote station’s country
C	Only those of the FCC
D	Those of both the remote station’s country and the FCC

7. - G1E11

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

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

8. - G2A04

Which mode is most commonly used for voice communications on the 17- and 12-meter bands?

Select	Answer
A	Double sideband
B	Upper sideband
C	Suppressed sideband
D	Lower sideband

9. - G2B07

Which of the following complies with commonly accepted amateur practice when choosing a frequency on which to initiate a call?

Select	Answer
A	Follow the voluntary band plan
B	Listen on the frequency for at least two minutes to be sure it is clear
C	All these choices are correct
D	Identify your station by transmitting your call sign at least 3 times

10. - G2C08

What prosign is sent to indicate the end of a formal message when using CW?

Select	Answer
A	KN
B	BK
C	SK
D	AR

11. - G2D10

What is QRP operation?

Select	Answer
A	Low-power transmit operation
B	Remote piloted model control
C	Traffic relay procedure net operation
D	Transmission using Quick Response Protocol

12. - G2E08

In what segment of the 20-meter band are most digital mode operations commonly found?

Select	Answer
A	Between 14.070 MHz and 14.100 MHz
B	In the middle of the CW segment, near 14.100 MHz
C	At the top of the SSB phone segment, near 14.325 MHz
D	At the bottom of the slow-scan TV segment, near 14.230 MHz

13. - G3A11

How long does it take a coronal mass ejection to affect radio propagation on Earth?

Select	Answer
A	15 hours to several days
B	28 days
C	4 to 8 minutes
D	14 days

14. - G3B09

What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the F2 region?

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

15. - G3C08

Why are HF scatter signals in the skip zone usually weak?

Select	Answer
A	Only a small part of the signal energy is scattered into the skip zone
B	Propagation is via ground waves, which absorb most of the signal energy
C	Propagation is via ducts in the F region, which absorb most of the energy
D	Signals are scattered from the magnetosphere, which is not a good reflector

16. - G4A12

Which of the following is a common use of the dual-VFO feature on a transceiver?

Select	Answer
A	To improve frequency accuracy by allowing variable frequency output (VFO) operation
B	To transmit on one frequency and listen on another
C	To allow transmitting on two frequencies at once
D	To permit full duplex operation -- that is, transmitting and receiving at the same time

17. - G4B01

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

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

18. - G4C03

What sound is heard from an audio device experiencing RF interference from a single sideband phone transmitter?

Select	Answer
A	Clearly audible speech
B	A steady hum whenever the transmitter is on the air
C	On-and-off humming or clicking
D	Distorted speech

19. - G4D10

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

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

20. - G4E07

Which of the following may cause receive interference to an HF transceiver installed in a vehicle?

Select	Answer
A	The control computers
B	All these choices are correct
C	The fuel delivery system
D	The battery charging system

21. - G5A07

What is the term for the inverse of impedance?

Select	Answer
A	Conductance
B	Reluctance
C	Admittance
D	Susceptance

22. - G5B06

What is the PEP produced by 200 volts peak-to-peak across a 50-ohm dummy load?

Select	Answer
A	400 watts
B	1.4 watts
C	353.5 watts
D	100 watts

23. - G5C08

What is the equivalent capacitance of two 5.0-nanofarad capacitors and one 750-picofarad capacitor connected in parallel?

Select	Answer
A	576.9 nanofarads
B	10.750 nanofarads
C	1,733 picofarads
D	3,583 picofarads

24. - G6A07

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

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

25. - G6B06

What kind of device is an integrated circuit operational amplifier?

Select	Answer
A	Analog
B	Digital
C	MMIC
D	Programmable Logic

26. - G7A12

Which symbol in Figure G7-1 represents a solid core transformer?

Select	Answer
A	Symbol 1
B	Symbol 6
C	Symbol 7
D	Symbol 4

27. - G7B10

Which of the following describes a linear amplifier?

Select	Answer
A	An amplifier in which the output preserves the input waveform
B	Any RF power amplifier used in conjunction with an amateur transceiver
C	An amplifier used as a frequency multiplier
D	A Class C high efficiency amplifier

28. - G7C02

What output is produced by a balanced modulator?

Select	Answer
A	Frequency modulated RF
B	Double-sideband modulated RF
C	Audio with equalized frequency response
D	Audio extracted from the modulation signal

29. - G8A13

What is a link budget?

Select	Answer
A	The financial costs associated with operating a radio link
B	The difference between transmit power and receiver sensitivity
C	The sum of transmit power and antenna gains minus system losses as seen at the receiver
D	The sum of antenna gains minus system losses

30. - G8B06

What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

Select	Answer
A	16 kHz
B	5 kHz
C	3 kHz
D	8 kHz

31. - G8C02

Which digital mode is used as a low-power beacon for assessing HF propagation?

Select	Answer
A	MFSK16
B	SSB-SC
C	PSK31
D	WSPR

32. - G9A09

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

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

33. - G9B05

How does antenna height affect the azimuthal radiation pattern of a horizontal dipole HF antenna at elevation angles higher than about 45 degrees?

Select	Answer
A	If the antenna is less than 1/2 wavelength high, radiation off the ends of the wire is eliminated
B	Antenna height has no effect on the pattern
C	If the antenna is less than 1/2 wavelength high, the azimuthal pattern is almost omnidirectional
D	If the antenna is too high, the pattern becomes unpredictable

34. - G9C07

What does “front-to-back ratio” mean in reference to a Yagi antenna?

Select	Answer
A	The relative position of the driven element with respect to the reflectors and directors
B	The ratio of forward gain to dipole gain
C	The number of directors versus the number of reflectors
D	The power radiated in the major lobe compared to that in the opposite direction

35. - G9D04

What is the primary function of antenna traps?

Select	Answer
A	To enable multiband operation
B	To notch spurious frequencies
C	To provide balanced feed point impedance
D	To prevent out-of-band operation

Figure G7-1