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. - G1A11

When General Class licensees are not permitted to use the entire voice portion of a particular band, which portion of the voice segment is generally available to them?

Select	Answer
A	The upper frequency end on frequencies below 7.3 MHz and the lower end on frequencies above 14.150 MHz
B	The lower frequency end on frequencies below 7.3 MHz and the upper end on frequencies above 14.150 MHz
C	The lower frequency end
D	The upper frequency end

2. - G1B06

When is an amateur station permitted to transmit secret codes?

Select	Answer
A	During a declared communications emergency
B	Only when the information is of a routine, personal nature
C	Only with Special Temporary Authorization from the FCC
D	To control a space station

3. - G1C06

Which of the following is a limitation on transmitter power on the 1.8 MHz band?

Select	Answer
A	200 watts PEP output
B	1500 watts PEP output
C	1200 watts PEP output
D	1000 watts PEP output

4. - G1D01

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

Select	Answer
A	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
B	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
C	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
D	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license

5. - G1E13

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

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

6. - G2A10

Which of the following statements is true of voice VOX operation versus PTT operation?

Select	Answer
A	It allows "hands free" operation
B	It provides more power output
C	It occupies less bandwidth
D	The received signal is more natural sounding

7. - G2B07

Which of the following complies with good amateur practice when choosing a frequency on which to initiate a call?

Select	Answer
A	Follow the voluntary band plan for the operating mode you intend to use
B	All of these choices are correct
C	Identify your station by transmitting your call sign at least 3 times
D	Check to see if the channel is assigned to another station

8. - G2C10

What does the Q signal "QRN" mean?

Select	Answer
A	I am troubled by static
B	Zero beat my signal
C	Send more slowly
D	Stop sending

9. - G2D01

What is the Amateur Auxiliary to the FCC?

Select	Answer
A	Amateur volunteers who are formally enlisted to monitor the airwaves for rules violations
B	Amateur volunteers who conduct frequency coordination for amateur VHF repeaters
C	Amateur volunteers who conduct amateur licensing examinations
D	Amateur volunteers who use their station equipment to help civil defense organizations in times of emergency

10. - G2E03

What symptoms may result from other signals interfering with a PACTOR or WINMOR transmission?

Select	Answer
A	All of these choices are correct
B	Long pauses in message transmission
C	Frequent retries or timeouts
D	Failure to establish a connection between stations

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	Microwave communications become unstable
C	High-frequency radio signals become weak and distorted
D	Frequencies above 300 MHz become usable for long-distance communication

12. - G3B03

Which of the following applies when selecting a frequency for lowest attenuation when transmitting on HF?

Select	Answer
A	Select a frequency just below the MUF
B	Select a frequency just above the critical frequency
C	Select a frequency just below the critical frequency
D	Select a frequency just above the LUF

13. - G3C10

Which of the following might be an indication that signals heard on the HF bands are being received via scatter propagation?

Select	Answer
A	The signal is heard on a frequency below the Maximum Usable Frequency
B	The signal is heard on a frequency above the Maximum Usable Frequency
C	The communication is during a sudden ionospheric disturbance
D	The communication is during a sunspot maximum

14. - G4A14

What is likely to happen if a transceiver's ALC system is not set properly when transmitting AFSK signals with the radio using single sideband mode?

Select	Answer
A	ALC will invert the modulation of the AFSK mode
B	All of these choices are correct
C	Improper action of ALC distorts the signal and can cause spurious emissions
D	When using digital modes, too much ALC activity can cause the transmitter to overheat

15. - G4B10

Which of the following can be determined with a directional wattmeter?

Select	Answer
A	Standing wave ratio
B	Radio wave propagation
C	RF interference
D	Antenna front-to-back ratio

16. - G4C07

What is one good way to avoid unwanted effects of stray RF energy in an amateur station?

Select	Answer
A	Install a few ferrite beads on the ground wire where it connects to your station
B	Install an RF filter in series with the ground wire
C	Connect all equipment grounds together
D	Use a ground loop for best conductivity

17. - G4D03

Which of the following can be the result of an incorrectly adjusted speech processor?

Select	Answer
A	Distorted speech
B	Splatter
C	Excessive background pickup
D	All of these choices are correct

18. - G4E03

Which of the following direct, fused power connections would be the best for a 100 watt HF mobile installation?

Select	Answer
A	To the alternator or generator using resistor wire
B	To the alternator or generator using heavy gauge wire
C	To the battery using resistor wire
D	To the battery using heavy gauge wire

19. - G5A07

What happens when the impedance of an electrical load is equal to the output impedance of a power source, assuming both impedances are resistive?

Select	Answer
A	The source can deliver maximum power to the load
B	No current can flow through the circuit
C	The electrical load is shorted
D	The source delivers minimum power to the load

20. - G5B04

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

Select	Answer
A	24 watts
B	6 watts
C	2.4 watts
D	60 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	An inductor in parallel
C	An inductor in series
D	A resistor in parallel

22. - G6A09

Which of the following describes the construction of a MOSFET?

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

23. - G6B02

What is meant by the term MMIC?

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

24. - G7A09

Which symbol in figure G7-1 represents a field effect transistor?

Select	Answer
A	Symbol 2
B	Symbol 1
C	Symbol 4
D	Symbol 5

25. - G7B04

Which of the following describes the function of a two input NOR gate?

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

26. - G7C07

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

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

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

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

28. - G8B09

Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

Select	Answer
A	It is required by FCC rules
B	It minimizes power consumption in the receiver
C	It results in the best signal to noise ratio
D	It improves impedance matching of the antenna

29. - G8C01

Which of the following digital modes is designed to operate at extremely low signal strength on the HF bands?

Select	Answer
A	JT9 and JT65
B	RTTY
C	FSK441 and Hellschreiber
D	Clover

30. - G9A01

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

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

31. - G9B10

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

Select	Answer
A	16 feet
B	8 feet
C	24 feet
D	32 feet

32. - G9C03

Which statement about a three-element, single-band Yagi antenna is true?

Select	Answer
A	Low feed point impedance increases bandwidth
B	The driven element is the longest element
C	The director is normally the shortest element
D	The reflector is normally the shortest element

33. - G9D07

Which of the following describes a log periodic antenna?

Select	Answer
A	Length and spacing of the elements increase logarithmically from one end of the boom to the other
B	Gain varies logarithmically as a function of frequency
C	Impedance varies periodically as a function of frequency
D	SWR varies periodically as a function of boom length

34. - G0A01

What is one way that RF energy can affect human body tissue?

Select	Answer
A	It causes the blood count to reach a dangerously low level
B	It heats body tissue
C	It cools body tissue
D	It causes radiation poisoning

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 8
B	AWG number 20
C	AWG number 12
D	AWG number 16

Figure G7-1