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. - G1A06

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

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

2. - G1B07

What are the restrictions on the use of abbreviations or procedural signals in the Amateur Service?

Select	Answer
A	Only "Q" signals are permitted
B	They may be used if they do not obscure the meaning of a message
C	Only "10 codes" are permitted
D	They are not permitted

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	1000 watts PEP output
C	2000 watts PEP output
D	100 watts PEP output

4. - G1D01

Who may receive credit for the elements represented by an expired amateur radio license?

Select	Answer
A	Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC
B	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license
C	Anyone who held an FCC issued amateur radio license that has been expired for not less than 5 years and not more than 15 years
D	Any person who can demonstrate that they once held an FCC issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC

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. - G2A04

Which mode is most commonly used for voice communications on the 17-meter and 12-meter bands?

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

7. - G2B12

When is an amateur station allowed to use any means at its disposal to assist another station in distress?

Select	Answer
A	At any time during an actual emergency
B	At any time when transmitting in an organized net
C	Only when transmitting in RACES
D	Only on authorized HF frequencies

8. - G2C09

What does the Q signal "QSL" mean?

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

9. - G2D07

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

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

10. - G2E14

What could be wrong if you cannot decode an RTTY or other FSK signal even though it is apparently tuned in properly?

Select	Answer
A	The mark and space frequencies may be reversed
B	You may be listening on the wrong sideband
C	All of these choices are correct
D	You may have selected the wrong baud rate

11. - G3A09

What effect does a high sunspot number have on radio communications?

Select	Answer
A	Long-distance communication in the upper HF and lower VHF range is enhanced
B	Frequencies above 300 MHz become usable for long-distance communication
C	Microwave communications become unstable
D	High-frequency radio signals become weak and distorted

12. - G3B07

What does LUF stand for?

Select	Answer
A	The Longest Universal Function during a 24 hour period
B	The Longest Universal Function for communications between two points
C	The Lowest Usable Frequency during a 24 hour period
D	The Lowest Usable Frequency for communications between two points

13. - G3C08

Why are HF scatter signals in the skip zone usually weak?

Select	Answer
A	Only a small part of the signal energy is scattered into the skip zone
B	Propagations is through ducts in F region which absorb most of the energy
C	Signals are scattered from the magnetosphere which is not a good reflector
D	Propagation is through ground waves which absorb most of the signal energy

14. - G4A11

Which of the following is a use for the IF shift control on a receiver?

Select	Answer
A	To tune in stations that are slightly off frequency without changing your transmit frequency
B	To avoid interference from stations very close to the receive frequency
C	To change frequency rapidly
D	To permit listening on a different frequency from that on which you are transmitting

15. - G4B09

Which of the following can be determined with a field strength meter?

Select	Answer
A	The radiation resistance of an antenna
B	The radiation pattern of an antenna
C	The presence and amount of phase distortion of a transmitter
D	The presence and amount of amplitude distortion of a transmitter

16. - G4C09

How can a ground loop be avoided?

Select	Answer
A	Avoid using lock washers and star washers when making ground connections
B	Connect the AC neutral conductor to the ground wire
C	Connect all ground conductors in series
D	Connect all ground conductors to a single point

17. - G4D05

How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?

Select	Answer
A	It is 100 times more powerful
B	It is 20 times more powerful
C	It is 10 times less powerful
D	It is 20 times less powerful

18. - G4E01

What is the purpose of a capacitance hat on a mobile antenna?

Select	Answer
A	To increase the power handling capacity of a whip antenna
B	To electrically lengthen a physically short antenna
C	To allow remote tuning
D	To allow automatic band changing

19. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Farad
B	Siemens
C	Ohm
D	Ampere

20. - G5B05

How many watts are dissipated when a current of 7.0 milliamperes flows through 1.25 kilohms resistance?

Select	Answer
A	Approximately 11 watts
B	Approximately 61 milliwatts
C	Approximately 11 milliwatts
D	Approximately 61 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	A resistor in parallel
C	An inductor in series
D	An inductor in parallel

22. - G6A15

Which of the following is an advantage of an electrolytic capacitor?

Select	Answer
A	High capacitance for a given volume
B	Inexpensive RF capacitor
C	Much less leakage than any other type
D	Tight tolerance

23. - G6B02

What is meant by the term MMIC?

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

24. - G7A11

Which symbol in figure G7-1 represents an NPN junction transistor?

Select	Answer
A	Symbol 1
B	Symbol 11
C	Symbol 2
D	Symbol 7

25. - G7B05

How many states does a 3-bit binary counter have?

Select	Answer
A	16
B	6
C	3
D	8

26. - G7C07

What is the simplest combination of stages that implement a superheterodyne receiver?

Select	Answer
A	HF oscillator, mixer, detector
B	HF oscillator, prescaler, audio amplifier
C	RF amplifier, mixer, IF discriminator
D	RF amplifier, detector, audio amplifier

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

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

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	Pre-emphasis network
B	Mixer
C	Reactance modulator
D	Multiplier

29. - G8C07

How does the receiving station respond to an ARQ data mode packet containing errors?

Select	Answer
A	It requests the packet be retransmitted
B	It sends the packet back to the transmitting station
C	It terminates the contact
D	It requests a change in transmitting protocol

30. - G9A01

Which of the following factors determine the characteristic impedance of a parallel conductor antenna feed line?

Select	Answer
A	The frequency of the signal and the length of the line
B	The radius of the conductors and the frequency of the signal
C	The distance between the centers of the conductors and the length of the line
D	The distance between the centers of the conductors and the radius of the conductors

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 decreases
C	It stays the same
D	It increases

32. - G9C15

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

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

33. - G9D09

Which of the following is an application for a Beverage antenna?

Select	Answer
A	Directional receiving for low HF bands
B	Directional transmitting for low HF bands
C	Portable direction finding at higher HF frequencies
D	Portable direction finding at lower HF frequencies

34. - G0A05

What must you do if an evaluation of your station shows RF energy radiated from your station exceeds permissible limits?

Select	Answer
A	Secure written permission from your neighbors to operate above the controlled MPE limits
B	File an Environmental Impact Statement (EIS-97) with the FCC
C	All of these choices are correct
D	Take action to prevent human exposure to the excessive RF fields

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

Figure G7-1