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. - G1A03

On which of the following bands is image transmission prohibited?

Select	Answer
A	160 meters
B	30 meters
C	12 meters
D	20 meters

2. - G1B01

What is the maximum height above ground to which an antenna structure may be erected without requiring notification to the FAA and registration with the FCC, provided it is not at or near a public use airport?

Select	Answer
A	100 feet
B	300 feet
C	50 feet
D	200 feet

3. - G1C11

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

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

4. - G1D11

If a person has an expired FCC issued amateur radio license of General Class or higher, what is required before they can receive a new license?

Select	Answer
A	There are no requirements other than being able to show a copy of the expired license
B	The applicant must pass the current element 2 exam
C	The applicant must be able to produce a copy of a page from a call book published in the USA showing his or her name and address
D	They must have a letter from the FCC showing they once held an amateur or commercial license

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

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	Frequency modulation
D	Double sideband

7. - G2B01

Which of the following is true concerning access to frequencies in non-emergency situations?

Select	Answer
A	QSOs in progress always have priority
B	Nets always have priority
C	Except during FCC declared emergencies, no one has priority access to frequencies
D	Contest operations must always yield to non-contest use of frequencies

8. - G2C02

What should you do if a CW station sends "QRS"?

Select	Answer
A	Increase your power
B	Repeat everything twice
C	Send slower
D	Change frequency

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 conduct efficient and orderly amateur licensing examinations
C	To coordinate repeaters for efficient and orderly spectrum usage
D	To provide emergency and public safety communications

10. - G2E11

What is indicated on a waterfall display by one or more vertical lines adjacent to a PSK31 signal?

Select	Answer
A	Long Path propagation
B	Backscatter propagation
C	Overmodulation
D	Insufficient modulation

11. - G3A07

At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?

Select	Answer
A	Only at the maximum point of the solar cycle
B	Only at the minimum point of the solar cycle
C	At any point in the solar cycle
D	At the summer solstice

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

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

14. - G4A13

What is one reason to use the attenuator function that is present on many HF transceivers?

Select	Answer
A	To reduce signal overload due to strong incoming signals
B	To slow down received CW signals for better copy
C	To reduce power consumption when operating from batteries
D	To reduce the transmitter power when driving a linear amplifier

15. - G4B05

Why is high input impedance desirable for a voltmeter?

Select	Answer
A	It decreases the loading on circuits being measured
B	It decreases battery consumption in the meter
C	It improves the resolution of the readings
D	It improves the frequency response

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. - G4D11

How close to the upper edge of the 20-meter General Class band should your displayed carrier frequency be when using 3 kHz wide USB?

Select	Answer
A	At least 3 kHz above the edge of the band
B	At least 1 kHz below the edge of the segment
C	At least 3 kHz below the edge of the band
D	Your displayed carrier frequency may be set at the edge of the band

18. - G4E10

What is the reason that a series diode is connected between a solar panel and a storage battery that is being charged by the panel?

Select	Answer
A	The diode serves to regulate the charging voltage to prevent overcharge
B	The diode prevents self-discharge of the battery though the panel during times of low or no illumination
C	The diode limits the current flowing from the panel to a safe value
D	The diode greatly increases the efficiency during times of high illumination

19. - G5A06

How does a capacitor react to AC?

Select	Answer
A	As the frequency of the applied AC increases, the reactance increases
B	As the frequency of the applied AC increases, the reactance decreases
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. - 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	530 watts
B	1060 watts
C	2120 watts
D	1500 watts

21. - G5C14

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

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

22. - G6A02

What is an advantage of the low internal resistance of nickel-cadmium batteries?

Select	Answer
A	Long life
B	High voltage
C	High discharge current
D	Rapid recharge

23. - G6B06

What kind of device is an integrated circuit operational amplifier?

Select	Answer
A	Programmable Logic
B	Analog
C	MMIC
D	Digital

24. - G7A10

Which symbol in figure G7-1 represents a Zener diode?

Select	Answer
A	Symbol 4
B	Symbol 1
C	Symbol 5
D	Symbol 11

25. - G7B04

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

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

26. - G7C11

What is meant by the term "software defined radio" (SDR)?

Select	Answer
A	A radio in which most major signal processing functions are performed by software
B	A computer model that can simulate performance of a radio to aid in the design process
C	A radio that uses crystal filters designed using software
D	A radio that provides computer interface for automatic logging of band and frequency

27. - G8A11

What is the modulation envelope of an AM signal?

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

28. - G8B04

What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?

Select	Answer
A	Multiplier
B	Mixer
C	Pre-emphasis network
D	Reactance modulator

29. - G8C09

What does the number 31 represent in "PSK31"?

Select	Answer
A	The version of the PSK protocol
B	The number of characters that can be represented by PSK31
C	The approximate transmitted symbol rate
D	The year in which PSK31 was invented

30. - G9A09

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 200 ohm impedance?

Select	Answer
A	1:2
B	1:4
C	4:1
D	2:1

31. - G9B03

What happens to the feed point impedance of a ground plane antenna when its radials are changed from horizontal to sloping downward?

Select	Answer
A	It reaches a maximum at an angle of 45 degrees
B	It increases
C	It stays the same
D	It decreases

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

33. - G9D08

Why is a Beverage antenna not used for transmitting?

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

34. - G0A01

What is one way that RF energy can affect human body tissue?

Select	Answer
A	It cools body tissue
B	It causes radiation poisoning
C	It causes the blood count to reach a dangerously low level
D	It heats body tissue

35. - G0B04

Which of the following is a primary reason for not placing a gasoline-fueled generator inside an occupied area?

Select	Answer
A	Lack of nitrogen for adequate combustion
B	Danger of carbon monoxide poisoning
C	Lack of oxygen for adequate combustion
D	Danger of engine over torque

Figure G7-1