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. - G1A01

On which of the following bands is a General Class license holder granted all amateur frequency privileges?

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

2. - G1B06

When is an amateur station permitted to transmit secret codes?

Select	Answer
A	Only when the information is of a routine, personal nature
B	Only with Special Temporary Authorization from the FCC
C	During a declared communications emergency
D	To control a space station

3. - G1C02

What is the maximum transmitting power an amateur station may use on the 12-meter band?

Select	Answer
A	50 watts PEP output
B	200 watts PEP output
C	1500 watts PEP output
D	An effective radiated power equivalent to 100 watts from a half-wave dipole

4. - G1D09

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

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

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	Only in the non-phone Extra Class segments of the bands
C	Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands
D	On any band segment where digital operation is permitted

6. - G2A10

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

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

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	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
B	Send "QSY" on CW or if using phone, announce "the frequency is in use", then give your call and listen for a response
C	Listen for 2 minutes before calling CQ
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. - G2C07

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

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

9. - G2D10

What is QRP operation?

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

10. - G2E07

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

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

11. - G3A11

Approximately how long is the typical sunspot cycle?

Select	Answer
A	11 years
B	40 hours
C	8 minutes
D	28 days

12. - G3B07

What does LUF stand for?

Select	Answer
A	The Longest Universal Function for communications between two points
B	The Longest Universal Function during a 24 hour period
C	The Lowest Usable Frequency during a 24 hour period
D	The Lowest 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 F layer is unstable during daylight hours
B	The F layer absorbs signals at these frequencies during daylight hours
C	The D layer absorbs signals at these frequencies during daylight hours
D	The E layer is unstable during daylight hours

14. - G4A07

What condition can lead to permanent damage to a solid-state RF power amplifier?

Select	Answer
A	Excessive drive power
B	Insufficient drive power
C	Shorting the input signal to ground
D	Low input SWR

15. - G4B07

What signals are used to conduct a two-tone test?

Select	Answer
A	Two swept frequency tones
B	Two audio frequency range square wave signals of equal amplitude
C	Two audio signals of the same frequency shifted 90 degrees
D	Two non-harmonically related audio signals

16. - G4C02

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

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

17. - G4D02

Which of the following describes how a speech processor affects a transmitted single sideband phone signal?

Select	Answer
A	It reduces harmonic distortion
B	It increases average power
C	It increases peak power
D	It reduces intermodulation distortion

18. - G4E06

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

Select	Answer
A	Harmonic radiation may increase
B	Operating bandwidth may be very limited
C	Short antennas are more likely to cause distortion of transmitted signals
D	Short antennas can only receive circularly polarized signals

19. - G5A03

Which of the following causes opposition to the flow of alternating current in an inductor?

Select	Answer
A	Reactance
B	Admittance
C	Conductance
D	Reluctance

20. - G5B10

What percentage of power loss would result from a transmission line loss of 1 dB?

Select	Answer
A	20.5 percent
B	10.9 percent
C	25.9 percent
D	12.2 percent

21. - G5C05

If three equal value resistors in series produce 450 ohms, what is the value of each resistor?

Select	Answer
A	1500 ohms
B	90 ohms
C	150 ohms
D	175 ohms

22. - G6A03

What is the approximate junction threshold voltage of a germanium diode?

Select	Answer
A	0.3 volts
B	0.7 volts
C	0.1 volt
D	1.0 volts

23. - G6B11

What is a microprocessor?

Select	Answer
A	A low voltage amplifier used in a microwave transmitter modulator stage
B	A microwave detector, amplifier, and local oscillator on a single integrated circuit
C	A low power analog signal processor used as a microwave detector
D	A computer on a single integrated circuit

24. - G7A13

Which symbol in Figure G7-1 represents a tapped inductor?

Select	Answer
A	Symbol 1
B	Symbol 11
C	Symbol 6
D	Symbol 7

25. - G7B04

Which of the following describes the function of a two input NOR gate?

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

26. - G7C02

Which circuit is used to combine signals from the carrier oscillator and speech amplifier then send the result to the filter in some single sideband phone transmitters?

Select	Answer
A	Balanced modulator
B	Discriminator
C	IF amplifier
D	Detector

27. - G8A10

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

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

28. - G8B03

What is another term for the mixing of two RF signals?

Select	Answer
A	Phase inverting
B	Heterodyning
C	Cancellation
D	Synthesizing

29. - G8C11

How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

Select	Answer
A	On and Off
B	Mark and Space
C	Dot and Dash
D	High and Low

30. - G9A05

How does the attenuation of coaxial cable change as the frequency of the signal it is carrying increases?

Select	Answer
A	Attenuation increases
B	Attenuation decreases
C	Attenuation reaches a maximum at approximately 18 MHz
D	Attenuation is independent of frequency

31. - G9B09

Which of the following is an advantage of a horizontally polarized as compared to a vertically polarized HF antenna?

Select	Answer
A	Lower ground reflection losses
B	Shorter Radials
C	Lower radiation resistance
D	Lower feed point impedance

32. - G9C05

How does increasing boom length and adding directors affect a Yagi antenna?

Select	Answer
A	Beamwidth increases
B	Front to side ratio decreases
C	Front to back ratio decreases
D	Gain increases

33. - G9D11

Which of the following is a disadvantage of multiband antennas?

Select	Answer
A	They have poor harmonic rejection
B	They must be used with an antenna tuner
C	They must be fed with open wire line
D	They present low impedance on all design frequencies

34. - G0A05

What must you do if an evaluation of your station shows RF energy radiated from your station exceeds permissible limits?

Select	Answer
A	All of these choices are correct
B	Take action to prevent human exposure to the excessive RF fields
C	File an Environmental Impact Statement (EIS-97) with the FCC
D	Secure written permission from your neighbors to operate above the controlled MPE limits

35. - G0B13

What must you do when powering your house from an emergency generator?

Select	Answer
A	All of these choices are correct
B	Insure that all lightning grounds are disconnected
C	Disconnect the incoming utility power feed
D	Insure that the generator is not grounded

Figure G7-1