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. - G1A01

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

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

2. - G1B03

Which of the following is a purpose of a beacon station as identified in the FCC rules?

Select	Answer
A	Transmission of bulletins of general interest to Amateur Radio licensees
B	Identifying net frequencies
C	Observation of propagation and reception
D	Automatic identification of repeaters

3. - G1C11

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

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

4. - G1D02

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

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

5. - G1E11

Which of the following is the FCC term for an unattended digital station that transfers messages to and from the Internet?

Select	Answer
A	Robotically controlled station
B	Locally controlled station
C	Fail-safe digital station
D	Automatically controlled digital station

6. - G2A07

Which of the following statements is true of the single sideband voice mode?

Select	Answer
A	SSB is the only voice mode that is authorized on the 20-meter, 15-meter, and 10-meter amateur bands
B	Only one sideband and the carrier are transmitted; the other sideband is suppressed
C	Only one sideband is transmitted; the other sideband and carrier are suppressed
D	SSB is the only voice mode that is authorized on the 160-meter, 75-meter and 40-meter amateur bands

7. - G2B03

If propagation changes during your contact and you notice increasing interference from other activity on the same frequency, what should you do?

Select	Answer
A	Report the interference to your local Amateur Auxiliary Coordinator
B	Tell the interfering stations to change frequency
C	As a common courtesy, move your contact to another frequency
D	Increase power to overcome interference

8. - G2C11

What does the Q signal "QRV" mean?

Select	Answer
A	There is interference on the frequency
B	I am ready to receive messages
C	I am quitting for the day
D	You are sending too fast

9. - G2D06

How is a directional antenna pointed when making a "long-path" contact with another station?

Select	Answer
A	Along the gray line
B	Toward the rising Sun
C	Toward the north
D	180 degrees from its short-path heading

10. - G2E05

What is the standard sideband used to generate a JT65 or JT9 digital signal when using AFSK in any amateur band?

Select	Answer
A	DSB
B	LSB
C	USB
D	SSB

11. - G3A12

What does the K-index indicate?

Select	Answer
A	The stability of the Sun's magnetic field
B	The solar radio flux at Boulder, Colorado
C	The short term stability of the Earth's magnetic field
D	The relative position of sunspots on the surface of the Sun

12. - G3B09

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

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

13. - G3C06

What is a characteristic of HF scatter signals?

Select	Answer
A	They have a wavering sound
B	They have very large swings in signal strength
C	All of these choices are correct
D	They have high intelligibility

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

15. - G4B03

Which of the following is the best instrument to use when checking the keying waveform of a CW transmitter?

Select	Answer
A	A wavemeter
B	An oscilloscope
C	A sidetone monitor
D	A field strength meter

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	On-and-off humming or clicking
D	Distorted speech

17. - G4D02

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

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

18. - G4E08

What is the name of the process by which sunlight is changed directly into electricity?

Select	Answer
A	Photovoltaic conversion
B	Photosynthesis
C	Photon decomposition
D	Photon emission

19. - G5A02

What is reactance?

Select	Answer
A	Opposition to the flow of alternating current caused by capacitance or inductance
B	Opposition to the flow of direct current caused by resistance
C	A property of ideal resistors in AC circuits
D	A large spark produced at switch contacts when an inductor is de-energized

20. - G5B13

What is the output PEP of an unmodulated carrier if an average reading wattmeter connected to the transmitter output indicates 1060 watts?

Select	Answer
A	1500 watts
B	530 watts
C	2120 watts
D	1060 watts

21. - G5C05

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

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

22. - G6A07

What are the stable operating points for a bipolar transistor used as a switch in a logic circuit?

Select	Answer
A	Its peak and valley current points
B	Its enhancement and depletion modes
C	Its saturation and cutoff regions
D	Its active region (between the cutoff and saturation regions)

23. - G6B11

What is a microprocessor?

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

24. - G7A04

What is the peak-inverse-voltage across the rectifier in a half-wave power supply?

Select	Answer
A	One-half the normal peak output voltage of the power supply
B	One-half the normal output voltage of the power supply
C	Two times the normal peak output voltage of the power supply
D	Equal to the normal output voltage of the power supply

25. - G7B09

What determines the frequency of an LC oscillator?

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

26. - G7C08

What type of circuit is used in many FM receivers to convert signals coming from the IF amplifier to audio?

Select	Answer
A	Product detector
B	Mixer
C	Discriminator
D	Phase inverter

27. - G8A02

What is the name of the process that changes the phase angle of an RF wave to convey information?

Select	Answer
A	Phase convolution
B	Angle convolution
C	Radian inversion
D	Phase modulation

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. - G8C08

Which of the following statements is true about PSK31?

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

30. - G9A03

What is the characteristic impedance of flat ribbon TV type twinlead?

Select	Answer
A	100 ohms
B	75 ohms
C	50 ohms
D	300 ohms

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 steadily increases
C	It steadily decreases
D	It is unaffected by the location of the feed point

32. - G9C18

What happens when the feed point of a quad antenna of any shape is moved from the midpoint of the top or bottom to the midpoint of either side?

Select	Answer
A	The polarization of the radiated signal changes from vertical to horizontal
B	The radiated signal becomes circularly polarized
C	The polarization of the radiated signal changes from horizontal to vertical
D	There is no change in polarization

33. - G9D07

Which of the following describes a log periodic antenna?

Select	Answer
A	SWR varies periodically as a function of boom length
B	Gain varies logarithmically as a function of frequency
C	Impedance varies periodically as a function of frequency
D	Length and spacing of the elements increase logarithmically from one end of the boom to the other

34. - G0A11

What precaution should you take if you install an indoor transmitting antenna?

Select	Answer
A	Position the antenna along the edge of a wall to reduce parasitic radiation
B	Locate the antenna close to your operating position to minimize feed line radiation
C	Make sure the antenna is properly shielded
D	Make sure that MPE limits are not exceeded in occupied areas

35. - G0B07

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

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