US Amateur Radio - General (Element 3, 2015-2019) Practice Test

Anonymous User

US Amateur Radio - General (Element 3, 2015-2019) Practice Test

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

1. - G1A13

What is the appropriate action if, when operating on either the 30-meter or 60-meter bands, a station in the primary service interferes with your contact?

Select	Answer
A	Attempt to contact the station and request that it stop the interference
B	Notify the FCCs regional Engineer in Charge of the interference
C	Increase your transmitter's power to overcome the interference
D	Move to a clear frequency or stop transmitting

2. - G1B09

When may an amateur station transmit communications in which the licensee or control operator has a pecuniary (monetary) interest?

Select	Answer
A	Never
B	When other amateurs are being notified of the sale of apparatus normally used in an amateur station and such activity is not done on a regular basis
C	When other amateurs are being notified of the sale of any item with a monetary value less than $200 and such activity is not done on a regular basis
D	Only when there is no other means of communications readily available

3. - 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	5.6 kHz
B	1.8 kHz
C	3 kHz
D	2.8 kHz

4. - G1D02

What license examinations may you administer when you are an accredited VE holding a General Class operator license?

Select	Answer
A	Extra, General and Technician
B	General only
C	General and Technician
D	Technician only

5. - G1E13

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 1.25-meter or shorter wavelength bands, and in specified segments of the 80-meter through 2-meter bands
B	Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands
C	Only in the non-phone Extra Class segments of the bands
D	On any band segment where digital operation is permitted

6. - G2A06

Which of the following is an advantage when using single sideband as compared to other analog voice modes on the HF amateur bands?

Select	Answer
A	Very high fidelity voice modulation
B	Ease of tuning on receive and immunity to impulse noise
C	Less subject to interference from atmospheric static crashes
D	Less bandwidth used and greater power efficiency

7. - G2B04

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

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

8. - G2C08

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

Select	Answer
A	AR
B	BK
C	KN
D	SK

9. - G2D05

When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?

Select	Answer
A	Only when the foreign country is a member of the International Amateur Radio Union
B	When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications
C	When the contact is with amateurs in any country as long as the communication is conducted in English
D	Only when the foreign country has a formal third party agreement filed with the FCC

10. - G2E11

What is indicated on a waterfall display by one or more vertical lines adjacent to a PSK31 signal?

Select	Answer
A	Backscatter propagation
B	Long Path propagation
C	Overmodulation
D	Insufficient modulation

11. - G3A15

How long does it take charged particles from coronal mass ejections to affect radio propagation on the Earth?

Select	Answer
A	28 days
B	14 days
C	4 to 8 minutes
D	20 to 40 hours

12. - G3B12

What factor or factors affect the MUF?

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

13. - G3C13

What is Near Vertical Incidence Sky-wave (NVIS) propagation?

Select	Answer
A	Propagation near the MUF
B	Long path HF propagation at sunrise and sunset
C	Short distance MF or HF propagation using high elevation angles
D	Double hop propagation near the LUF

14. - G4A06

What type of device is often used to match transmitter output impedance to an impedance not equal to 50 ohms?

Select	Answer
A	Antenna coupler or antenna tuner
B	Balanced modulator
C	Q Multiplier
D	SWR Bridge

15. - G4B13

What is a use for an antenna analyzer other than measuring the SWR of an antenna system?

Select	Answer
A	Measuring the turns ratio of a power transformer
B	Determining the gain of a directional antenna
C	Determining the impedance of an unknown or unmarked coaxial cable
D	Measuring the front to back ratio of an antenna

16. - G4C02

Which of the following could be a cause of interference covering a wide range of frequencies?

Select	Answer
A	Lack of rectification of the transmitter's signal in power conductors
B	Using a balun to feed an unbalanced antenna
C	Arcing at a poor electrical connection
D	Not using a balun or line isolator to feed balanced antennas

17. - G4D01

What is the purpose of a speech processor as used in a modern transceiver?

Select	Answer
A	Prevent distortion of voice signals
B	Increase transmitter bass response for more natural sounding SSB signals
C	Decrease high-frequency voice output to prevent out of band operation
D	Increase the intelligibility of transmitted phone signals during poor conditions

18. - G4E07

Which of the following may cause interference to be heard in the receiver of an HF radio installed in a recent model vehicle?

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

19. - G5A05

How does an inductor react to AC?

Select	Answer
A	As the amplitude of the applied AC increases, the reactance increases
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 decreases

20. - G5B12

What would be the RMS voltage across a 50 ohm dummy load dissipating 1200 watts?

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

21. - G5C04

What is the total resistance of three 100 ohm resistors in parallel?

Select	Answer
A	0.30 ohms
B	0.33 ohms
C	300 ohms
D	33.3 ohms

22. - G6A19

How should the winding axes of two solenoid inductors be oriented to minimize their mutual inductance?

Select	Answer
A	At right angles to each other
B	In line
C	Interleaved
D	Parallel to each other

23. - G6B16

Which of the following describes a type N connector?

Select	Answer
A	A moisture-resistant RF connector useful to 10 GHz
B	A small bayonet connector used for data circuits
C	An audio connector used in surround-sound installations
D	A threaded connector used for hydraulic systems

24. - G7A09

Which symbol in figure G7-1 represents a field effect transistor?

Select	Answer
A	Symbol 2
B	Symbol 1
C	Symbol 5
D	Symbol 4

25. - G7B09

What determines the frequency of an LC oscillator?

Select	Answer
A	The number of stages in the divider
B	The number of stages in the counter
C	The inductance and capacitance in the tank circuit
D	The time delay of the lag circuit

26. - G7C10

How is Digital Signal Processor filtering accomplished?

Select	Answer
A	By differential spurious phasing
B	By converting the signal from analog to digital and using digital processing
C	By using direct signal phasing
D	By converting the signal from digital to analog and taking the difference of mixing products

27. - G8A10

What is meant by the term flat-topping when referring to a single sideband phone transmission?

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

28. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

Select	Answer
A	Bandwidth is always half the symbol rate
B	Symbol rate and bandwidth are not related
C	Lower symbol rates require wider bandwidth
D	Higher symbol rates require wider bandwidth

29. - G8C09

What does the number 31 represent in "PSK31"?

Select	Answer
A	The year in which PSK31 was invented
B	The version of the PSK protocol
C	The approximate transmitted symbol rate
D	The number of characters that can be represented by PSK31

30. - G9A07

What must be done to prevent standing waves on an antenna feed line?

Select	Answer
A	The antenna feed point impedance must be matched to the characteristic impedance of the feed line
B	The feed line must be cut to a length equal to an odd number of electrical quarter wavelengths
C	The antenna feed point must be at DC ground potential
D	The feed line must be cut to a length equal to an even number of physical half wavelengths

31. - G9B08

How does the feed point impedance of a 1/2 wave dipole change as the feed point is moved from the center toward the ends?

Select	Answer
A	It peaks at about 1/8 wavelength from the end
B	It is unaffected by the location of the feed point
C	It steadily increases
D	It steadily decreases

32. - G9C02

What is the approximate length of the driven element of a Yagi antenna?

Select	Answer
A	1/2 wavelength
B	1/4 wavelength
C	1 wavelength
D	3/4 wavelength

33. - G9D02

Which of the following is an advantage of an NVIS antenna?

Select	Answer
A	High forward gain
B	Low vertical angle radiation for working stations out to ranges of several thousand kilometers
C	All of these choices are correct
D	High vertical angle radiation for working stations within a radius of a few hundred kilometers

34. - G0A10

What is one thing that can be done if evaluation shows that a neighbor might receive more than the allowable limit of RF exposure from the main lobe of a directional antenna?

Select	Answer
A	Post a warning sign that is clearly visible to the neighbor
B	Take precautions to ensure that the antenna cannot be pointed in their direction
C	Use an antenna with a higher front-to-back ratio
D	Change to a non-polarized antenna with higher gain

35. - G0B07

Which of these choices should be observed when climbing a tower using a safety belt or harness?

Select	Answer
A	All of these choices are correct
B	Ensure that all heavy tools are securely fastened to the belt D-ring
C	Confirm that the belt is rated for the weight of the climber and that it is within its allowable service life
D	Never lean back and rely on the belt alone to support your weight

Figure G7-1