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

2. - G1B12

Who or what determines "good engineering and good amateur practice" as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

Select	Answer
A	The IEEE
B	The Control Operator
C	The ITU
D	The FCC

3. - G1C01

What is the maximum transmitting power an amateur station may use on 10.140 MHz?

Select	Answer
A	1500 watts PEP output
B	1000 watts PEP output
C	2000 watts PEP output
D	200 watts PEP output

4. - G1D02

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

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

5. - G1E13

On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?

Select	Answer
A	On any band segment where digital operation is permitted
B	Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands
C	Only in the non-phone Extra Class segments of the bands
D	Anywhere in the 1.25-meter or shorter wavelength bands, and in specified segments of the 80-meter through 2-meter bands

6. - G2A08

Which of the following is a recommended way to break into a contact when using phone?

Select	Answer
A	Say your call sign during a break between transmissions by the other stations
B	Say "QRZ" several times followed by your call sign
C	Say "CQ" followed by the call sign of either station
D	Say "Break Break Break" and wait for a response

7. - G2B11

What frequency should be used to send a distress call?

Select	Answer
A	Only frequencies that are within your operating privileges
B	Whichever frequency has the best chance of communicating the distress message
C	Only frequencies used by police, fire or emergency medical services
D	Only frequencies authorized for RACES or ARES stations

8. - G2C08

What prosign is sent to indicate the end of a formal message when using CW?

Select	Answer
A	BK
B	SK
C	KN
D	AR

9. - G2D07

Which of the following is required by the FCC rules when operating in the 60-meter band?

Select	Answer
A	You must keep a record of the date, time, frequency, power level and stations worked
B	You must keep a record of all third party traffic
C	You must keep a record of the manufacturer of your equipment and the antenna used
D	If you are using other than a dipole antenna, you must keep a record of the gain of your antenna

10. - G2E11

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

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

11. - G3A02

What effect does a Sudden Ionospheric Disturbance have on the daytime ionospheric propagation of HF radio waves?

Select	Answer
A	It enhances propagation on all HF frequencies
B	None, because only areas on the night side of the Earth are affected
C	It disrupts signals on lower frequencies more than those on higher frequencies
D	It disrupts communications via satellite more than direct communications

12. - G3B12

What factor or factors affect the MUF?

Select	Answer
A	Path distance and location
B	Solar radiation and ionospheric disturbances
C	All of these choices are correct
D	Time of day and season

13. - G3C12

Which ionospheric layer is the most absorbent of long skip signals during daylight hours on frequencies below 10 MHz?

Select	Answer
A	The D layer
B	The F2 layer
C	The E layer
D	The F1 layer

14. - G4A12

Which of the following is a common use for the dual VFO feature on a transceiver?

Select	Answer
A	To allow transmitting on two frequencies at once
B	To permit full duplex operation, that is transmitting and receiving at the same time
C	To permit monitoring of two different frequencies
D	To facilitate computer interface

15. - G4B11

Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?

Select	Answer
A	All of these choices are correct
B	Antenna and feed line
C	Transmitter
D	Receiver

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	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. - G4D07

How much must the power output of a transmitter be raised to change the S meter reading on a distant receiver from S8 to S9?

Select	Answer
A	Approximately 4 times
B	Approximately 2 times
C	Approximately 1.5 times
D	Approximately 8 times

18. - G4E04

Why is it best NOT to draw the DC power for a 100 watt HF transceiver from a vehicle's auxiliary power socket?

Select	Answer
A	The socket's wiring may be inadequate for the current drawn by the transceiver
B	Drawing more than 50 watts from this socket could cause the engine to overheat
C	The socket is not wired with an RF-shielded power cable
D	The DC polarity of the socket is reversed from the polarity of modern HF transceivers

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. - G5B01

What dB change represents a two-times increase or decrease in power?

Select	Answer
A	Approximately 12 dB
B	Approximately 3 dB
C	Approximately 6 dB
D	Approximately 2 dB

21. - G5C18

What is the value in microfarads of a 4700 nanofarad (nF) capacitor?

Select	Answer
A	47,000 microfarads
B	4.7 microfarads
C	0.47 microfarads
D	47 microfarads

22. - G6A14

Which of the following is an advantage of ceramic capacitors as compared to other types of capacitors?

Select	Answer
A	Comparatively low cost
B	High stability
C	High capacitance for given volume
D	Tight tolerance

23. - G6B13

Which of these connector types is commonly used for RF connections at frequencies up to 150 MHz?

Select	Answer
A	RJ-11
B	PL-259
C	Octal
D	DB-25

24. - G7A12

Which symbol in Figure G7-1 represents a multiple-winding transformer?

Select	Answer
A	Symbol 6
B	Symbol 1
C	Symbol 7
D	Symbol 4

25. - G7B03

Which of the following describes the function of a two input AND gate?

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

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	Mixer
B	Discriminator
C	Product detector
D	Phase inverter

27. - G8A06

What is one advantage of carrier suppression in a single sideband phone transmission versus full carrier amplitude modulation?

Select	Answer
A	Available transmitter power can be used more effectively
B	Simpler receiving equipment can be used
C	Audio fidelity is improved
D	Greater modulation percentage is obtainable with lower distortion

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	Mixer
C	Discriminator
D	VFO

29. - G8C12

Which type of code is used for sending characters in a PSK31 signal?

Select	Answer
A	Viterbi
B	Binary
C	Varicode
D	Volumetric

30. - G9A08

If the SWR on an antenna feed line is 5 to 1, and a matching network at the transmitter end of the feed line is adjusted to 1 to 1 SWR, what is the resulting SWR on the feed line?

Select	Answer
A	Between 1 to 1 and 5 to 1 depending on the characteristic impedance of the line
B	5 to 1
C	1 to 1
D	Between 1 to 1 and 5 to 1 depending on the reflected power at the transmitter

31. - G9B01

What is one disadvantage of a directly fed random-wire HF antenna?

Select	Answer
A	It produces only vertically polarized radiation
B	It must be longer than 1 wavelength
C	You may experience RF burns when touching metal objects in your station
D	It is more effective on the lower HF bands than on the higher bands

32. - G9C15

Approximately how long is each side of the reflector element of a quad antenna?

Select	Answer
A	Slightly less than 1/4 wavelength
B	Slightly less than 1/2 wavelength
C	Slightly more than 1/2 wavelength
D	Slightly more than 1/4 wavelength

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. - G0A02

Which of the following properties is important in estimating whether an RF signal exceeds the maximum permissible exposure (MPE)?

Select	Answer
A	All of these choices are correct
B	Its frequency
C	Its power density
D	Its duty cycle

35. - G0B13

What must you do when powering your house from an emergency generator?

Select	Answer
A	Disconnect the incoming utility power feed
B	All of these choices are correct
C	Insure that the generator is not grounded
D	Insure that all lightning grounds are disconnected

Figure G7-1