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

2. - G1B04

Which of the following must be true before amateur stations may provide communications to broadcasters for dissemination to the public?

Select	Answer
A	The communications must directly relate to the immediate safety of human life or protection of property and there must be no other means of communication reasonably available before or at the time of the event
B	All of these choices are correct
C	The FCC must have declared a state of emergency
D	The communications must be approved by a local emergency preparedness official and conducted on officially designated frequencies

3. - G1C11

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 2-meter band?

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

4. - G1D06

When must you add the special identifier "AG" after your call sign if you are a Technician Class licensee and have a CSCE for General Class operator privileges, but the FCC has not yet posted your upgrade on its website ?

Select	Answer
A	Whenever you operate on any amateur frequency
B	A special identifier is not required as long as your General Class license application has been filed with the FCC
C	Whenever you operate using General Class frequency privileges
D	Whenever you operate using Technician frequency privileges

5. - G1E04

Which of the following conditions require a licensed Amateur Radio operator to take specific steps to avoid harmful interference to other users or facilities?

Select	Answer
A	When a station is transmitting spread spectrum emissions
B	When operating within one mile of an FCC Monitoring Station
C	When using a band where the Amateur Service is secondary
D	All of these choices are correct

6. - G2A05

Which mode of voice communication is most commonly used on the HF amateur bands?

Select	Answer
A	Phase modulation
B	Single sideband
C	Double sideband
D	Frequency modulation

7. - G2B06

What is a practical way to 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 "QRL?" on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
C	Send "QSY" on CW or if using phone, announce "the frequency is in use", then give your call and listen for a response
D	Send the letter "V" in Morse code several times and listen for a response or say "test" several times and listen for a response

8. - G2C09

What does the Q signal "QSL" mean?

Select	Answer
A	I acknowledge receipt
B	We have already confirmed by card
C	We have worked before
D	Send slower

9. - G2D02

Which of the following are objectives of the Amateur Auxiliary?

Select	Answer
A	To encourage self-regulation and compliance with the rules by radio amateur operators
B	To coordinate repeaters for efficient and orderly spectrum usage
C	To conduct efficient and orderly amateur licensing examinations
D	To provide emergency and public safety communications

10. - G2E07

What segment of the 80-meter band is most commonly used for digital transmissions?

Select	Answer
A	3570 - 3600 kHz
B	3500 - 3525 kHz
C	3775 - 3825 kHz
D	3700 - 3750 kHz

11. - G3A04

Which of the following are least reliable for long distance communications during periods of low solar activity?

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

12. - G3B12

What factor or factors affect the MUF?

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

13. - G3C01

Which ionospheric layer is closest to the surface of the Earth?

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

14. - G4A01

What is the purpose of the "notch filter" found on many HF transceivers?

Select	Answer
A	To enhance the reception of a specific frequency on a crowded band
B	To eliminate receiver interference from impulse noise sources
C	To restrict the transmitter voice bandwidth
D	To reduce interference from carriers in the receiver passband

15. - G4B10

Which of the following can be determined with a directional wattmeter?

Select	Answer
A	Radio wave propagation
B	Antenna front-to-back ratio
C	Standing wave ratio
D	RF interference

16. - G4C03

What sound is heard from an audio device or telephone if there is interference from a nearby single sideband phone transmitter?

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

17. - G4D06

Where is an S meter found?

Select	Answer
A	In an SWR bridge
B	In a conductance bridge
C	In a receiver
D	In a transmitter

18. - G4E02

What is the purpose of a corona ball on a HF mobile antenna?

Select	Answer
A	To narrow the operating bandwidth of the antenna
B	To increase the "Q" of the antenna
C	To reduce the chance of damage if the antenna should strike an object
D	To reduce high voltage discharge from the tip of the antenna

19. - G5A06

How does a capacitor react to AC?

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

20. - G5B04

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

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

21. - G5C14

Which of the following components should be added to an inductor to increase the inductance?

Select	Answer
A	A resistor in parallel
B	An inductor in parallel
C	A capacitor in series
D	An inductor in series

22. - G6A12

What is the primary purpose of a screen grid in a vacuum tube?

Select	Answer
A	To increase efficiency
B	To reduce grid-to-plate capacitance
C	To decrease plate resistance
D	To increase the control grid resistance

23. - G6B07

Which of the following is an advantage of an LED indicator compared to an incandescent indicator?

Select	Answer
A	Faster response time
B	All of these choices are correct
C	Longer life
D	Lower power consumption

24. - G7A12

Which symbol in Figure G7-1 represents a multiple-winding transformer?

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

25. - G7B05

How many states does a 3-bit binary counter have?

Select	Answer
A	3
B	8
C	6
D	16

26. - G7C04

What circuit is used to combine signals from the IF amplifier and BFO and send the result to the AF amplifier in some single sideband receivers?

Select	Answer
A	Product detector
B	RF oscillator
C	IF filter
D	Balanced modulator

27. - G8A11

What is the modulation envelope of an AM signal?

Select	Answer
A	The waveform created by connecting the peak values of the modulated signal
B	Spurious signals that envelop nearby frequencies
C	The bandwidth of the modulated signal
D	The carrier frequency that contains the signal

28. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

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

29. - G8C08

Which of the following statements is true about PSK31?

Select	Answer
A	Upper case letters make the signal stronger
B	Higher power is needed as compared to RTTY for similar error rates
C	Upper case letters use longer Varicode signals and thus slow down transmission
D	Varicode Error Correction is used to ensure accurate message reception

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 even number of physical half wavelengths
C	The feed line must be cut to a length equal to an odd number of electrical quarter wavelengths
D	The antenna feed point must be at DC ground potential

31. - G9B07

How does the feed point impedance of a 1/2 wave dipole antenna change as the antenna is lowered below 1/4 wave above ground?

Select	Answer
A	It peaks at about 1/8 wavelength above ground
B	It steadily increases
C	It steadily decreases
D	It is unaffected by the height above ground

32. - G9C08

What is meant by the "main lobe" of a directive antenna?

Select	Answer
A	The direction of maximum radiated field strength from the antenna
B	The maximum voltage standing wave point on a radiating element
C	The point of maximum current in a radiating antenna element
D	The magnitude of the maximum vertical angle of radiation

33. - G9D01

What does the term NVIS mean as related to antennas?

Select	Answer
A	Non-Varying Indicated SWR
B	Nearly Vertical Inductance System
C	Near Vertical Incidence sky-wave
D	Non-Varying Impedance Smoothing

34. - G0A03

How can you determine that your station complies with FCC RF exposure regulations?

Select	Answer
A	All of these choices are correct
B	By measurement of field strength using calibrated equipment
C	By calculation based on FCC OET Bulletin 65
D	By calculation based on computer modeling

35. - G0B11

Which of the following is good practice for lightning protection grounds?

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

Figure G7-1