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. - G1A02

On which of the following bands is phone operation prohibited?

Select	Answer
A	12 meters
B	17 meters
C	160 meters
D	30 meters

2. - G1B06

When is an amateur station permitted to transmit secret codes?

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

3. - G1C09

What is the maximum symbol rate permitted for RTTY or data emission transmitted on the 1.25-meter and 70-centimeter bands?

Select	Answer
A	300 baud
B	19.6 kilobaud
C	56 kilobaud
D	1200 baud

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

5. - G1E05

What types of messages for a third party in another country may be transmitted by an amateur station?

Select	Answer
A	Any message, as long as the amateur operator is not paid
B	Any messages, as long as the text of the message is recorded in the station log
C	Only messages for other licensed amateurs
D	Only messages relating to Amateur Radio or remarks of a personal character, or messages relating to emergencies or disaster relief

6. - G2A01

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

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

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	Check to see if the channel is assigned to another station
C	All of these choices are correct
D	Identify your station by transmitting your call sign at least 3 times

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. - G2D02

Which of the following are objectives of the Amateur Auxiliary?

Select	Answer
A	To provide emergency and public safety communications
B	To conduct efficient and orderly amateur licensing examinations
C	To encourage self-regulation and compliance with the rules by radio amateur operators
D	To coordinate repeaters for efficient and orderly spectrum usage

10. - G2E02

How can a PACTOR modem or controller be used to determine if the channel is in use by other PACTOR stations?

Select	Answer
A	Unplug the data connector temporarily and see if the channel-busy indication is turned off
B	Send the message: "Is this frequency in use?"
C	Put the modem or controller in a mode which allows monitoring communications without a connection
D	Transmit UI packets several times and wait to see if there is a response from another PACTOR station

11. - G3A05

What is the solar flux index?

Select	Answer
A	A count of sunspots which is adjusted for solar emissions
B	Another name for the American sunspot number
C	A measure of the highest frequency that is useful for ionospheric propagation between two points on the Earth
D	A measure of solar radiation at 10.7 centimeters wavelength

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	Periodic fading approximately every 10 seconds
C	The signal might be cancelled causing severe attenuation
D	A well-defined echo might be heard

13. - G3C13

What is Near Vertical Incidence Sky-wave (NVIS) propagation?

Select	Answer
A	Double hop propagation near the LUF
B	Propagation near the MUF
C	Long path HF propagation at sunrise and sunset
D	Short distance MF or HF propagation using high elevation angles

14. - G4A15

Which of the following can be a symptom of transmitted RF being picked up by an audio cable carrying AFSK data signals between a computer and a transceiver?

Select	Answer
A	All of these choices are correct
B	The VOX circuit does not un-key the transmitter
C	Frequent connection timeouts
D	The transmitter signal is distorted

15. - G4B12

What problem can occur when making measurements on an antenna system with an antenna analyzer?

Select	Answer
A	Strong signals from nearby transmitters can affect the accuracy of measurements
B	Permanent damage to the analyzer may occur if it is operated into a high SWR
C	Connecting the analyzer to an antenna can cause it to absorb harmonics
D	The analyzer can be damaged if measurements outside the ham bands are attempted

16. - G4C10

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

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

17. - G4D03

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

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

18. - G4E01

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

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

19. - G5A03

Which of the following causes opposition to the flow of alternating current in an inductor?

Select	Answer
A	Reactance
B	Admittance
C	Reluctance
D	Conductance

20. - G5B02

How does the total current relate to the individual currents in each branch of a purely resistive parallel circuit?

Select	Answer
A	It decreases as more parallel branches are added to the circuit
B	It equals the sum of the currents through each branch
C	It equals the average of each branch current
D	It is the sum of the reciprocal of each individual voltage drop

21. - G5C03

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

Select	Answer
A	A capacitor in parallel
B	A capacitor in series
C	A resistor in series
D	A resistor 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	Much less leakage than any other type
C	Inexpensive RF capacitor
D	Tight tolerance

23. - G6B16

Which of the following describes a type N connector?

Select	Answer
A	A small bayonet connector used for data circuits
B	A threaded connector used for hydraulic systems
C	A moisture-resistant RF connector useful to 10 GHz
D	An audio connector used in surround-sound installations

24. - G7A10

Which symbol in figure G7-1 represents a Zener diode?

Select	Answer
A	Symbol 4
B	Symbol 11
C	Symbol 1
D	Symbol 5

25. - G7B07

What are the basic components of virtually all sine wave oscillators?

Select	Answer
A	A frequency multiplier and a mixer
B	A circulator and a filter operating in a feed-forward loop
C	A filter and an amplifier operating in a feedback loop
D	An amplifier and a divider

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	Carrier oscillator
B	RF amplifier
C	IF amplifier
D	Filter

27. - G8A10

What is meant by the term flat-topping when referring to a single sideband phone transmission?

Select	Answer
A	Signal distortion caused by insufficient collector current
B	Signal distortion caused by excessive drive
C	The transmitter's carrier is properly suppressed
D	The transmitter's automatic level control (ALC) is properly adjusted

28. - G8B07

What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?

Select	Answer
A	5 kHz
B	416.7 Hz
C	101.75 Hz
D	60 kHz

29. - G8C12

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

Select	Answer
A	Binary
B	Varicode
C	Volumetric
D	Viterbi

30. - G9A15

What is the effect of transmission line loss on SWR measured at the input to the line?

Select	Answer
A	The higher the transmission line loss, the more accurate the SWR measurement will be
B	The higher the transmission line loss, the more the SWR will read artificially low
C	The higher the transmission line loss, the more the SWR will read artificially high
D	Transmission line loss does not affect the SWR measurement

31. - G9B02

Which of the following is a common way to adjust the feed point impedance of a quarter wave ground plane vertical antenna to be approximately 50 ohms?

Select	Answer
A	Slope the radials upward
B	Slope the radials downward
C	Shorten the radials
D	Lengthen the radials

32. - G9C07

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

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

33. - G9D07

Which of the following describes a log periodic antenna?

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

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 power density
C	Its duty cycle
D	Its frequency

35. - G0B12

What is the purpose of a power supply interlock?

Select	Answer
A	To shut down the unit if it becomes too hot
B	To prevent unauthorized changes to the circuit that would void the manufacturer's warranty
C	To ensure that dangerous voltages are removed if the cabinet is opened
D	To shut off the power supply if too much voltage is produced

Figure G7-1