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	60 meters
B	11 meters
C	12 meters
D	30 meters

2. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	The frequency must be coordinated with the National Beacon Organization
B	A beacon station may not use automatic control
C	The frequency must be posted on the Internet or published in a national periodical
D	There must be no more than one beacon signal transmitting in the same band from the same station location

3. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

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

4. - G1D01

Who may receive credit for the elements represented by an expired amateur radio license?

Select	Answer
A	Any person who can demonstrate that they once held an FCC issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC
B	Anyone who held an FCC issued amateur radio license that has been expired for not less than 5 years and not more than 15 years
C	Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC
D	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license

5. - G1E08

Which of the following is a requirement for a non-licensed person to communicate with a foreign Amateur Radio station from a station with an FCC-granted license at which an FCC licensed control operator is present?

Select	Answer
A	All of these choices are correct
B	The foreign amateur station must be in a country with which the United States has a third party agreement
C	Information must be exchanged in English
D	The control operator must have at least a General Class license

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

7. - G2B10

When may the FCC restrict normal frequency operations of amateur stations participating in RACES?

Select	Answer
A	When the President's War Emergency Powers have been invoked
B	Only when all amateur stations are instructed to stop transmitting
C	When they declare a temporary state of communication emergency
D	When they seize your equipment for use in disaster communications

8. - G2C05

What is the best speed to use when answering a CQ in Morse code?

Select	Answer
A	The speed at which the CQ was sent
B	The fastest speed at which you are comfortable copying
C	At the standard calling speed of 5 wpm
D	A slow speed until contact is established

9. - G2D04

Which of the following describes an azimuthal projection map?

Select	Answer
A	A map that shows true bearings and distances from a particular location
B	A map that shows accurate land masses
C	A map that shows the number of degrees longitude that an amateur satellite appears to move westward at the equator with each orbit
D	A map that shows the angle at which an amateur satellite crosses the equator

10. - G2E12

Which of the following describes a waterfall display?

Select	Answer
A	Frequency is vertical, signal strength is intensity, time is horizontal
B	Frequency is vertical, signal strength is horizontal, time is intensity
C	Frequency is horizontal, signal strength is intensity, time is vertical
D	Frequency is horizontal, signal strength is vertical, time is intensity

11. - G3A05

What is the solar flux index?

Select	Answer
A	A measure of the highest frequency that is useful for ionospheric propagation between two points on the Earth
B	A count of sunspots which is adjusted for solar emissions
C	A measure of solar radiation at 10.7 centimeters wavelength
D	Another name for the American sunspot number

12. - G3B05

What usually happens to radio waves with frequencies below the MUF and above the LUF when they are sent into the ionosphere?

Select	Answer
A	They are amplified by interaction with the ionosphere
B	They are bent and trapped in the ionosphere to circle the Earth
C	They are bent back to the Earth
D	They pass through the ionosphere

13. - G3C07

What makes HF scatter signals often sound distorted?

Select	Answer
A	Ground waves are absorbing much of the signal
B	Energy is scattered into the skip zone through several different radio wave paths
C	The E-region is not present
D	The ionospheric layer involved is unstable

14. - G4A01

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

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

15. - G4B07

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

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

16. - G4C10

What could be a symptom of a ground loop somewhere in your station?

Select	Answer
A	An item of station equipment starts to draw excessive amounts of current
B	You receive reports of harmonic interference from your station
C	You receive reports of "hum" on your station's transmitted signal
D	The SWR reading for one or more antennas is suddenly very high

17. - G4D06

Where is an S meter found?

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

18. - G4E08

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

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

19. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Siemens
B	Ohm
C	Ampere
D	Farad

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	1060 watts
B	2120 watts
C	530 watts
D	1500 watts

21. - G5C15

What is the total resistance of a 10 ohm, a 20 ohm, and a 50 ohm resistor connected in parallel?

Select	Answer
A	10000 ohms
B	80 ohms
C	0.17 ohms
D	5.9 ohms

22. - G6A19

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

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

23. - G6B08

How is an LED biased when emitting light?

Select	Answer
A	Beyond cutoff
B	At the Zener voltage
C	Forward Biased
D	Reverse Biased

24. - G7A07

What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?

Select	Answer
A	A series of DC pulses at twice the frequency of the AC input
B	A series of DC pulses at the same frequency as the AC input
C	A sine wave at half the frequency of the AC input
D	A steady DC voltage

25. - G7B06

What is a shift register?

Select	Answer
A	An analog mixer
B	A digital mixer
C	An array of operational amplifiers used for tri-state arithmetic operations
D	A clocked array of circuits that passes data in steps along the array

26. - G7C06

What should be the impedance of a low-pass filter as compared to the impedance of the transmission line into which it is inserted?

Select	Answer
A	About the same
B	Substantially higher
C	Substantially lower
D	Twice the transmission line impedance

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	Phase modulation
C	Angle convolution
D	Radian inversion

28. - G8B06

What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

Select	Answer
A	8 kHz
B	3 kHz
C	16 kHz
D	5 kHz

29. - G8C11

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

Select	Answer
A	Mark and Space
B	On and Off
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 is independent of frequency
C	Attenuation decreases
D	Attenuation reaches a maximum at approximately 18 MHz

31. - G9B12

What is the approximate length for a 1/4 wave vertical antenna cut for 28.5 MHz?

Select	Answer
A	11 feet
B	21 feet
C	16 feet
D	8 feet

32. - G9C11

What is the purpose of a gamma match used with Yagi antennas?

Select	Answer
A	To match the relatively low feed point impedance to 50 ohms
B	To match the relatively high feed point impedance to 50 ohms
C	To increase the front-to-back ratio
D	To increase the main lobe gain

33. - G9D01

What does the term NVIS mean as related to antennas?

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

34. - G0A07

What effect does transmitter duty cycle have when evaluating RF exposure?

Select	Answer
A	A higher transmitter duty cycle permits greater short-term exposure levels
B	Low duty cycle transmitters are exempt from RF exposure evaluation requirements
C	High duty cycle transmitters are exempt from RF exposure requirements
D	A lower transmitter duty cycle permits greater short-term exposure levels

35. - G0B11

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

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