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

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

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1. - G1A04

Which of the following amateur bands is restricted to communication on only specific channels, rather than frequency ranges?

Select	Answer
A	12 meters
B	60 meters
C	30 meters
D	11 meters

2. - G1B11

How does the FCC require an amateur station to be operated in all respects not specifically covered by the Part 97 rules?

Select	Answer
A	In conformance with the rules of the IARU
B	All of these choices are correct
C	In conformance with good engineering and good amateur practice
D	In conformance with Amateur Radio custom

3. - G1C09

What is the maximum symbol rate permitted for RTTY or data emission transmitted on the 1.25-meter and 70-centimeter bands?

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

4. - G1D09

How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

Select	Answer
A	365 days
B	180 days
C	30 days
D	For as long as your current license is valid

5. - G1E01

Which of the following would disqualify a third party from participating in stating a message over an amateur station?

Select	Answer
A	The third party is speaking in a language other than English
B	The third party is a licensed amateur
C	The third party is not a U.S. citizen
D	The third party's amateur license has been revoked and not reinstated

6. - G2A10

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

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

7. - G2B07

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

Select	Answer
A	All of these choices are correct
B	Follow the voluntary band plan for the operating mode you intend to use
C	Check to see if the channel is assigned to another station
D	Identify your station by transmitting your call sign at least 3 times

8. - G2C07

When sending CW, what does a "C" mean when added to the RST report?

Select	Answer
A	100 percent copy
B	Report was read from an S meter rather than estimated
C	Chirpy or unstable signal
D	Key clicks

9. - G2D11

Which HF antenna would be the best to use for minimizing interference?

Select	Answer
A	An isotropic antenna
B	An omnidirectional antenna
C	A quarter-wave vertical antenna
D	A directional antenna

10. - G2E14

What could be wrong if you cannot decode an RTTY or other FSK signal even though it is apparently tuned in properly?

Select	Answer
A	All of these choices are correct
B	You may have selected the wrong baud rate
C	The mark and space frequencies may be reversed
D	You may be listening on the wrong sideband

11. - G3A02

What effect does a Sudden Ionospheric Disturbance have on the daytime ionospheric propagation of HF radio waves?

Select	Answer
A	It disrupts communications via satellite more than direct communications
B	It disrupts signals on lower frequencies more than those on higher frequencies
C	None, because only areas on the night side of the Earth are affected
D	It enhances propagation on all HF frequencies

12. - G3B08

What does MUF stand for?

Select	Answer
A	The Minimum Usable Frequency during a 24 hour period
B	The Maximum Usable Frequency during a 24 hour period
C	The Maximum Usable Frequency for communications between two points
D	The Minimum Usable Frequency for communications between two points

13. - G3C05

Why is long distance communication on the 40-meter, 60-meter, 80-meter and 160-meter bands more difficult during the day?

Select	Answer
A	The D layer absorbs signals at these frequencies during daylight hours
B	The F layer absorbs signals at these frequencies during daylight hours
C	The E layer is unstable during daylight hours
D	The F layer is unstable during daylight hours

14. - G4A15

Which of the following can be a symptom of transmitted RF being picked up by an audio cable carrying AFSK data signals between a computer and a transceiver?

Select	Answer
A	The transmitter signal is distorted
B	All of these choices are correct
C	The VOX circuit does not un-key the transmitter
D	Frequent connection timeouts

15. - G4B12

What problem can occur when making measurements on an antenna system with an antenna analyzer?

Select	Answer
A	Permanent damage to the analyzer may occur if it is operated into a high SWR
B	Connecting the analyzer to an antenna can cause it to absorb harmonics
C	The analyzer can be damaged if measurements outside the ham bands are attempted
D	Strong signals from nearby transmitters can affect the accuracy of measurements

16. - G4C12

Which of the following is an advantage of a receiver DSP IF filter as compared to an analog filter?

Select	Answer
A	Mixing products are greatly reduced
B	The DSP filter is much more effective at VHF frequencies
C	A wide range of filter bandwidths and shapes can be created
D	Fewer digital components are required

17. - G4D03

Which of the following can be the result of an incorrectly adjusted speech processor?

Select	Answer
A	Excessive background pickup
B	All of these choices are correct
C	Splatter
D	Distorted speech

18. - G4E03

Which of the following direct, fused power connections would be the best for a 100 watt HF mobile installation?

Select	Answer
A	To the battery using resistor wire
B	To the battery using heavy gauge wire
C	To the alternator or generator using heavy gauge wire
D	To the alternator or generator using resistor wire

19. - G5A13

Which of the following devices can be used for impedance matching at radio frequencies?

Select	Answer
A	A length of transmission line
B	All of these choices are correct
C	A transformer
D	A Pi-network

20. - G5B11

What is the ratio of peak envelope power to average power for an unmodulated carrier?

Select	Answer
A	2.00
B	1.00
C	1.414
D	0.707

21. - G5C12

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

Select	Answer
A	14.3 microfarads
B	70 microfarads
C	0.07 microfarads
D	1000 microfarads

22. - 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	10.5 volts
C	6 volts
D	12 volts

23. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Multi Megabyte Integrated Circuit
B	Mode Modulated Integrated Circuit
C	Military Manufactured Integrated Circuit
D	Monolithic Microwave Integrated Circuit

24. - G7A03

What is the peak-inverse-voltage across the rectifiers in a full-wave bridge power supply?

Select	Answer
A	Equal to the normal peak output voltage of the power supply
B	Double the normal peak output voltage of the power supply
C	Half the normal output voltage of the power supply
D	One-quarter the normal output voltage of the power supply

25. - G7B03

Which of the following describes the function of a two input AND gate?

Select	Answer
A	Output is high when either or both inputs are low
B	Output is low when either or both inputs are high
C	Output is high only when both inputs are high
D	Output is low only when both inputs are high

26. - G7C10

How is Digital Signal Processor filtering accomplished?

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

27. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Insufficient bandwidth
B	Frequency drift
C	Insufficient audio
D	Excessive bandwidth

28. - G8B01

What receiver stage combines a 14.250 MHz input signal with a 13.795 MHz oscillator signal to produce a 455 kHz intermediate frequency (IF) signal?

Select	Answer
A	BFO
B	Discriminator
C	VFO
D	Mixer

29. - G8C10

How does forward error correction (FEC) allow the receiver to correct errors in received data packets?

Select	Answer
A	By using a parity bit with each character
B	By using the varicode character set
C	By transmitting redundant information with the data
D	By controlling transmitter output power for optimum signal strength

30. - G9A06

In what units is RF feed line loss usually expressed?

Select	Answer
A	Ohms per 1000 feet
B	Ohms per 100 feet
C	Decibels per 1000 feet
D	Decibels per 100 feet

31. - G9B06

Where should the radial wires of a ground-mounted vertical antenna system be placed?

Select	Answer
A	On the surface of the Earth or buried a few inches below the ground
B	At the center of the antenna
C	As high as possible above the ground
D	Parallel to the antenna element

32. - G9C12

Which of the following is an advantage of using a gamma match for impedance matching of a Yagi antenna to 50 ohm coax feed line?

Select	Answer
A	It does not require any inductors or capacitors
B	It is useful for matching multiband antennas
C	All of these choices are correct
D	It does not require that the elements be insulated from the boom

33. - G9D08

Why is a Beverage antenna not used for transmitting?

Select	Answer
A	It has high losses compared to other types of antennas
B	Its impedance is too low for effective matching
C	All of these choices are correct
D	It has poor directivity

34. - G0A03

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

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

35. - G0B03

Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?

Select	Answer
A	100 amperes
B	30 amperes
C	15 amperes
D	60 amperes