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. - G1A06

Which of the following frequencies is within the General Class portion of the 75-meter phone band?

Select	Answer
A	3750 kHz
B	4005 kHz
C	3900 kHz
D	1875 kHz

2. - G1B03

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

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

3. - G1C05

Which of the following is a limitation on transmitter power on the 28 MHz band for a General Class control operator?

Select	Answer
A	1500 watts PEP output
B	2000 watts PEP output
C	1000 watts PEP output
D	100 watts PEP output

4. - G1D05

Which of the following must a person have before they can be an administering VE for a Technician Class license examination?

Select	Answer
A	Notification to the FCC that you want to give an examination
B	Receipt of a CSCE for General Class
C	An FCC General Class or higher license and VEC accreditation
D	Possession of a properly obtained telegraphy license

5. - G1E06

Which of the following applies in the event of interference between a coordinated repeater and an uncoordinated repeater?

Select	Answer
A	The frequency coordinator bears primary responsibility to resolve the interference
B	The licensee of the uncoordinated repeater has primary responsibility to resolve the interference
C	The licensee of the coordinated repeater has primary responsibility to resolve the interference
D	Both repeater licensees share equal responsibility to resolve the interference

6. - G2A01

Which sideband is most commonly used for voice communications on frequencies of 14 MHz or higher?

Select	Answer
A	Vestigial sideband
B	Double sideband
C	Lower sideband
D	Upper sideband

7. - G2B04

When selecting a CW transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	3 to 6 kHz
B	150 to 500 Hz
C	1 to 3 kHz
D	5 to 50 Hz

8. - G2C04

What does the Q signal "QRL?" mean?

Select	Answer
A	"Will you keep the frequency clear?"
B	"Are you busy?", or "Is this frequency in use?"
C	"Are you listening only for a specific station?"
D	"Are you operating full break-in" or "Can you operate full break-in?"

9. - G2D10

What is QRP operation?

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

10. - G2E09

How do you join a contact between two stations using the PACTOR protocol?

Select	Answer
A	Transmit a steady carrier until the PACTOR protocol times out and disconnects
B	Send a NAK response continuously so that the sending station has to pause
C	Send broadcast packets containing your call sign while in MONITOR mode
D	Joining an existing contact is not possible, PACTOR connections are limited to two stations

11. - G3A12

What does the K-index indicate?

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

12. - G3B01

How might a sky-wave signal sound if it arrives at your receiver by both short path and long path propagation?

Select	Answer
A	The signal might be cancelled causing severe attenuation
B	A well-defined echo might be heard
C	Signal strength increased by 3 dB
D	Periodic fading approximately every 10 seconds

13. - G3C06

What is a characteristic of HF scatter signals?

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

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

15. - G4B02

Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

Select	Answer
A	Complex impedances can be easily measured
B	Complex waveforms can be measured
C	An oscilloscope uses less power
D	Input impedance is much lower

16. - G4C10

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

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

17. - G4D06

Where is an S meter found?

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

18. - G4E06

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

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

19. - G5A11

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

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

20. - G5B04

How many watts of electrical power are used by a 12 VDC light bulb that draws 0.2 amperes?

Select	Answer
A	60 watts
B	24 watts
C	2.4 watts
D	6 watts

21. - G5C03

Which of the following components should be added to an existing resistor to increase the resistance?

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

22. - G6A09

Which of the following describes the construction of a MOSFET?

Select	Answer
A	The source is formed by depositing metal on silicon
B	The gate is formed by a back-biased junction
C	The source is separated from the drain by a thin insulating layer
D	The gate is separated from the channel with a thin insulating layer

23. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Multi Megabyte Integrated Circuit
B	Mode Modulated Integrated Circuit
C	Military Manufactured Integrated Circuit
D	Monolithic Microwave Integrated Circuit

24. - G7A13

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

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

25. - G7B14

Which of the following describes a linear amplifier?

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

26. - G7C01

Which of the following is used to process signals from the balanced modulator then send them to the mixer in some single sideband phone transmitters?

Select	Answer
A	RF amplifier
B	IF amplifier
C	Filter
D	Carrier oscillator

27. - G8A01

How is an FSK signal generated?

Select	Answer
A	By changing an oscillator's frequency directly with a digital control signal
B	By using a transceiver's computer data interface protocol to change frequencies
C	By keying an FM transmitter with a sub-audible tone
D	By reconfiguring the CW keying input to act as a tone generator

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	8 kHz
C	16 kHz
D	5 kHz

29. - G8C03

What part of a data packet contains the routing and handling information?

Select	Answer
A	Preamble
B	Footer
C	Directory
D	Header

30. - G9A06

In what units is RF feed line loss usually expressed?

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

31. - G9B07

How does the feed point impedance of a 1/2 wave dipole antenna change as the antenna is lowered below 1/4 wave above ground?

Select	Answer
A	It steadily increases
B	It steadily decreases
C	It is unaffected by the height above ground
D	It peaks at about 1/8 wavelength above ground

32. - G9C16

How does the gain of a two-element delta-loop beam compare to the gain of a two-element quad antenna?

Select	Answer
A	2.54 dB higher
B	3 dB higher
C	3 dB lower
D	About the same

33. - G9D04

What is the primary purpose of antenna traps?

Select	Answer
A	To notch spurious frequencies
B	To provide balanced feed point impedance
C	To permit multiband operation
D	To prevent out of band operation

34. - G0A10

What is one thing that can be done if evaluation shows that a neighbor might receive more than the allowable limit of RF exposure from the main lobe of a directional antenna?

Select	Answer
A	Post a warning sign that is clearly visible to the neighbor
B	Take precautions to ensure that the antenna cannot be pointed in their direction
C	Use an antenna with a higher front-to-back ratio
D	Change to a non-polarized antenna with higher gain

35. - G0B09

Why should soldered joints not be used with the wires that connect the base of a tower to a system of ground rods?

Select	Answer
A	Solder flux will prevent a low conductivity connection
B	The resistance of solder is too high
C	A soldered joint will likely be destroyed by the heat of a lightning strike
D	Solder has too high a dielectric constant to provide adequate lightning protection

Figure G7-1