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. - G1A14

In what ITU region is operation in the 7.175 to 7.300 MHz band permitted for a control operator holding an FCC issued General Class license?

Select	Answer
A	Region 1
B	Region 2
C	Region 3
D	All three regions

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 FCC
D	The ITU

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	5.6 kHz
B	1.8 kHz
C	2.8 kHz
D	3 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 General Class frequency privileges
B	A special identifier is not required as long as your General Class license application has been filed with the FCC
C	Whenever you operate using Technician frequency privileges
D	Whenever you operate on any amateur frequency

5. - G1E12

Under what circumstances are messages that are sent via digital modes exempt from Part 97 third party rules that apply to other modes of communication?

Select	Answer
A	When messages are not encrypted
B	Under no circumstances
C	When messages are encrypted
D	When under automatic control

6. - G2A05

Which mode of voice communication is most commonly used on the HF amateur bands?

Select	Answer
A	Double sideband
B	Single sideband
C	Phase modulation
D	Frequency modulation

7. - G2B10

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

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

8. - G2C09

What does the Q signal "QSL" mean?

Select	Answer
A	Send slower
B	I acknowledge receipt
C	We have already confirmed by card
D	We have worked before

9. - G2D04

Which of the following describes an azimuthal projection map?

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

10. - G2E04

What segment of the 20-meter band is most often used for digital transmissions?

Select	Answer
A	14.150 - 14.225 MHz
B	14.275 - 14.350 MHz
C	14.070 - 14.100 MHz
D	14.000 - 14.050 MHz

11. - G3A03

Approximately how long does it take the increased ultraviolet and X-ray radiation from solar flares to affect radio propagation on the Earth?

Select	Answer
A	28 days
B	1 to 2 hours
C	20 to 40 hours
D	8 minutes

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

13. - G3C06

What is a characteristic of HF scatter signals?

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

14. - G4A04

What reading on the plate current meter of a vacuum tube RF power amplifier indicates correct adjustment of the plate tuning control?

Select	Answer
A	A pronounced peak
B	No change will be observed
C	A slow, rhythmic oscillation
D	A pronounced dip

15. - G4B11

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

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

16. - G4C08

Which of the following would reduce RF interference caused by common-mode current on an audio cable?

Select	Answer
A	Placing a ferrite choke around the cable
B	Adding an additional insulating jacket to the cable
C	Adding series capacitors to the conductors
D	Adding shunt inductors to the conductors

17. - G4D09

What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

Select	Answer
A	14.3455 to 14.3485 MHz
B	14.344 to 14.347 MHz
C	14.347 to 14.647 MHz
D	14.347 to 14.350 MHz

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. - G5A01

What is impedance?

Select	Answer
A	The inverse of resistance
B	The opposition to the flow of current in an AC circuit
C	The force of repulsion between two similar electric fields
D	The electric charge stored by a capacitor

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	1500 watts
B	2120 watts
C	530 watts
D	1060 watts

21. - G5C09

What is the capacitance of three 100 microfarad capacitors connected in series?

Select	Answer
A	0.30 microfarads
B	33.3 microfarads
C	300 microfarads
D	0.33 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	Tight tolerance
C	High stability
D	High capacitance for given volume

23. - G6B18

What is a type SMA connector?

Select	Answer
A	A large bayonet connector usable at power levels in excess of 1 KW
B	A small threaded connector suitable for signals up to several GHz
C	A type of push-on connector intended for high voltage applications
D	A connector designed for serial multiple access signals

24. - G7A06

What portion of the AC cycle is converted to DC by a full-wave rectifier?

Select	Answer
A	180 degrees
B	270 degrees
C	360 degrees
D	90 degrees

25. - G7B03

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

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

26. - G7C09

Which of the following is needed for a Digital Signal Processor IF filter?

Select	Answer
A	A digital processor chip
B	An analog to digital converter
C	A digital to analog converter
D	All of the these choices are correct

27. - G8A05

What type of modulation varies the instantaneous power level of the RF signal?

Select	Answer
A	Frequency modulation
B	Amplitude modulation
C	Phase modulation
D	Frequency shift keying

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. - G8C05

In the PACTOR protocol, what is meant by an NAK response to a transmitted packet?

Select	Answer
A	The receiver is reporting the packet was received without error
B	The entire file has been received correctly
C	The receiver is busy decoding the packet
D	The receiver is requesting the packet be retransmitted

30. - G9A06

In what units is RF feed line loss usually expressed?

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

31. - G9B08

How does the feed point impedance of a 1/2 wave dipole change as the feed point is moved from the center toward the ends?

Select	Answer
A	It peaks at about 1/8 wavelength from the end
B	It steadily increases
C	It is unaffected by the location of the feed point
D	It steadily decreases

32. - G9C07

What does "front-to-back ratio" mean in reference to a Yagi antenna?

Select	Answer
A	The number of directors versus the number of reflectors
B	The ratio of forward gain to dipole gain
C	The relative position of the driven element with respect to the reflectors and directors
D	The power radiated in the major radiation lobe compared to the power radiated in exactly the opposite direction

33. - G9D10

Which of the following describes a Beverage antenna?

Select	Answer
A	A helical antenna for space reception
B	A broad-band mobile antenna
C	A very long and low directional receiving antenna
D	A vertical antenna

34. - G0A04

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

Select	Answer
A	The average amount of power developed by the transmitter over a specific 24 hour period
B	The total time of the exposure
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. - G0B04

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

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