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. - G1A12

Which of the following applies when the FCC rules designate the Amateur Service as a secondary user on a band?

Select	Answer
A	Amateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station
B	Amateur stations may only operate during specific hours of the day, while primary users are permitted 24 hour use of the band
C	Amateur stations are allowed to use the band only if they do not cause harmful interference to primary users
D	Amateur stations are allowed to use the band only during emergencies

2. - G1B03

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

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

3. - G1C03

What is the maximum bandwidth permitted by FCC rules for Amateur Radio stations transmitting on USB frequencies in the 60-meter band?

Select	Answer
A	1.8 kHz
B	3 kHz
C	5.6 kHz
D	2.8 kHz

4. - G1D06

When must you add the special identifier "AG" after your call sign if you are a Technician Class licensee and have a CSCE for General Class operator privileges, but the FCC has not yet posted your upgrade on its website ?

Select	Answer
A	Whenever you operate using Technician frequency privileges
B	Whenever you operate on any amateur frequency
C	A special identifier is not required as long as your General Class license application has been filed with the FCC
D	Whenever you operate using General Class frequency privileges

5. - G1E03

What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?

Select	Answer
A	The station initiating the contact must be under local or remote control
B	No third party traffic maybe be transmitted
C	The interrogating transmission must be made by another automatically controlled station
D	The control operator of the interrogating station must hold an Extra Class license

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. - G2B02

What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

Select	Answer
A	Continue your communication because you were on the frequency first
B	Acknowledge the station in distress and determine what assistance may be needed
C	Change to a different frequency
D	Immediately cease all transmissions

8. - G2C01

Which of the following describes full break-in telegraphy (QSK)?

Select	Answer
A	Automatic keyers are used to send Morse code instead of hand keys
B	An operator must activate a manual send/receive switch before and after every transmission
C	Transmitting stations can receive between code characters and elements
D	Breaking stations send the Morse code prosign BK

9. - G2D03

What skills learned during hidden transmitter hunts are of help to the Amateur Auxiliary?

Select	Answer
A	Hunters have an opportunity to transmit on non-amateur frequencies
B	Direction finding used to locate stations violating FCC Rules
C	Identification of different call signs
D	Identification of out of band operation

10. - G2E10

Which of the following is a way to establish contact with a digital messaging system gateway station?

Select	Answer
A	Send an email to the system control operator
B	Transmit a connect message on the station's published frequency
C	Send QRL in Morse code
D	Respond when the station broadcasts its SSID

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

12. - G3B04

What is a reliable way to determine if the MUF is high enough to support skip propagation between your station and a distant location on frequencies between 14 and 30 MHz?

Select	Answer
A	Listen for signals from an international beacon in the frequency range you plan to use
B	Send a series of dots on the band and listen for echoes from your signal
C	Check the strength of TV signals from Western Europe
D	Check the strength of signals in the MF AM broadcast band

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

14. - G4A02

What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver?

Select	Answer
A	Interference from impulse noise will be eliminated
B	Accidental out of band operation can be prevented
C	More stations can be accommodated within a given signal passband
D	It may be possible to reduce or eliminate interference from other signals

15. - G4B01

What item of test equipment contains horizontal and vertical channel amplifiers?

Select	Answer
A	An ohmmeter
B	An oscilloscope
C	A signal generator
D	An ammeter

16. - G4C06

What effect can be caused by a resonant ground connection?

Select	Answer
A	High RF voltages on the enclosures of station equipment
B	A ground loop
C	Corrosion of the ground rod
D	Overheating of ground straps

17. - G4D04

What does an S meter measure?

Select	Answer
A	Impedance
B	Conductance
C	Received signal strength
D	Transmitter power output

18. - G4E02

What is the purpose of a corona ball on a HF mobile antenna?

Select	Answer
A	To increase the "Q" of the antenna
B	To narrow the operating bandwidth of the antenna
C	To reduce the chance of damage if the antenna should strike an object
D	To reduce high voltage discharge from the tip of the antenna

19. - G5A11

Which of the following describes one method of impedance matching between two AC circuits?

Select	Answer
A	Insert a circulator between the two circuits
B	Increase the power output of the first circuit
C	Reduce the power output of the first circuit
D	Insert an LC network between the two circuits

20. - G5B10

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

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

21. - G5C08

What is the equivalent capacitance of two 5.0 nanofarad capacitors and one 750 picofarad capacitor connected in parallel?

Select	Answer
A	1733 picofarads
B	3583 picofarads
C	10.750 nanofarads
D	576.9 nanofarads

22. - G6A07

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

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

23. - G6B07

Which of the following is an advantage of an LED indicator compared to an incandescent indicator?

Select	Answer
A	Longer life
B	Lower power consumption
C	Faster response time
D	All of these choices are correct

24. - G7A10

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

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

25. - G7B14

Which of the following describes a linear amplifier?

Select	Answer
A	An amplifier used as a frequency multiplier
B	An amplifier in which the output preserves the input waveform
C	Any RF power amplifier used in conjunction with an amateur transceiver
D	A Class C high efficiency amplifier

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 converting the signal from analog to digital and using digital processing
C	By using direct signal phasing
D	By differential spurious phasing

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	The transmitter's automatic level control (ALC) is properly adjusted
C	Signal distortion caused by excessive drive
D	The transmitter's carrier is properly suppressed

28. - G8B06

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

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

29. - G8C02

How many data bits are sent in a single PSK31 character?

Select	Answer
A	5
B	7
C	The number varies
D	8

30. - G9A06

In what units is RF feed line loss usually expressed?

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

31. - G9B04

What is the radiation pattern of a dipole antenna in free space in the plane of the conductor?

Select	Answer
A	It has a pair of lobes on one side of the antenna and a single lobe on the other side
B	It is a circle (equal radiation in all directions)
C	It is a figure-eight off both ends of the antenna
D	It is a figure-eight at right angles to the antenna

32. - G9C05

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

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

33. - G9D03

At what height above ground is an NVIS antenna typically installed?

Select	Answer
A	As close to one wavelength as possible
B	Between 1/10 and 1/4 wavelength
C	As close to 1/2 wavelength as possible
D	Height is not critical as long as it is significantly more than 1/2 wavelength

34. - G0A04

What does "time averaging" mean in reference to RF radiation exposure?

Select	Answer
A	The total time of the exposure
B	The average amount of power developed by the transmitter over a specific 24 hour period
C	The average time it takes RF radiation to have any long-term effect on the body
D	The total RF exposure averaged over a certain time

35. - G0B02

What is the minimum wire size that may be safely used for a circuit that draws up to 20 amperes of continuous current?

Select	Answer
A	AWG number 20
B	AWG number 16
C	AWG number 12
D	AWG number 8

Figure G7-1