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	30 meters
B	17 meters
C	160 meters
D	12 meters

2. - G1B09

When may an amateur station transmit communications in which the licensee or control operator has a pecuniary (monetary) interest?

Select	Answer
A	Never
B	When other amateurs are being notified of the sale of any item with a monetary value less than $200 and such activity is not done on a regular basis
C	Only when there is no other means of communications readily available
D	When other amateurs are being notified of the sale of apparatus normally used in an amateur station and such activity is not done on a regular basis

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	2000 watts PEP output
B	100 watts PEP output
C	1500 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	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
B	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license
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	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

5. - G1E07

With which foreign countries is third party traffic prohibited, except for messages directly involving emergencies or disaster relief communications?

Select	Answer
A	Countries in ITU Region 2
B	Every foreign country, unless there is a third party agreement in effect with that country
C	Any country which is not a member of the International Amateur Radio Union (IARU)
D	Countries in ITU Region 1

6. - G2A01

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

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

7. - G2B09

Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

Select	Answer
A	A person holding an FCC issued amateur operator license or an appropriate government official
B	Only a RACES net control operator
C	Any control operator when normal communication systems are operational
D	Only a person holding an FCC issued amateur operator license

8. - G2C08

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

Select	Answer
A	KN
B	AR
C	BK
D	SK

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

10. - G2E01

Which mode is normally used when sending an RTTY signal via AFSK with an SSB transmitter?

Select	Answer
A	DSB
B	USB
C	CW
D	LSB

11. - G3A09

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

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

12. - G3B05

What usually happens to radio waves with frequencies below the MUF and above the LUF when they are sent into the ionosphere?

Select	Answer
A	They pass through the ionosphere
B	They are bent back to the Earth
C	They are amplified by interaction with the ionosphere
D	They are bent and trapped in the ionosphere to circle the Earth

13. - G3C01

Which ionospheric layer is closest to the surface of the Earth?

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

14. - G4A03

What is normally meant by operating a transceiver in "split" mode?

Select	Answer
A	The radio is operating at half power
B	The transmitter is emitting an SSB signal, as opposed to DSB operation
C	The transceiver is operating from an external power source
D	The transceiver is set to different transmit and receive frequencies

15. - G4B01

What item of test equipment contains horizontal and vertical channel amplifiers?

Select	Answer
A	An ammeter
B	An ohmmeter
C	An oscilloscope
D	A signal generator

16. - G4C13

Which of the following can perform automatic notching of interfering carriers?

Select	Answer
A	Bandpass tuning
B	A Digital Signal Processor (DSP) filter
C	A noise limiter
D	Balanced mixing

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	14.344 to 14.347 MHz
B	14.347 to 14.350 MHz
C	14.3455 to 14.3485 MHz
D	14.347 to 14.647 MHz

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

19. - G5A04

Which of the following causes opposition to the flow of alternating current in a capacitor?

Select	Answer
A	Conductance
B	Admittance
C	Reluctance
D	Reactance

20. - G5B04

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

Select	Answer
A	2.4 watts
B	24 watts
C	6 watts
D	60 watts

21. - G5C06

What is the RMS voltage across a 500-turn secondary winding in a transformer if the 2250-turn primary is connected to 120 VAC?

Select	Answer
A	2370 volts
B	5.9 volts
C	26.7 volts
D	540 volts

22. - G6A04

When is it acceptable to recharge a carbon-zinc primary cell?

Select	Answer
A	When a constant current charger is used
B	As long as the voltage has not been allowed to drop below 1.0 volt
C	Never
D	When the cell is kept warm during the recharging period

23. - G6B06

What kind of device is an integrated circuit operational amplifier?

Select	Answer
A	Digital
B	Programmable Logic
C	MMIC
D	Analog

24. - G7A03

What is the peak-inverse-voltage across the rectifiers in a full-wave bridge power supply?

Select	Answer
A	Double the normal peak output voltage of the power supply
B	Half the normal output voltage of the power supply
C	Equal to the normal peak output voltage of the power supply
D	One-quarter the normal output voltage of the power supply

25. - G7B11

For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?

Select	Answer
A	CW
B	SSB
C	AM
D	All of these choices are correct

26. - G7C09

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

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

27. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Frequency drift
B	Insufficient audio
C	Excessive bandwidth
D	Insufficient bandwidth

28. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

Select	Answer
A	Symbol rate and bandwidth are not related
B	Bandwidth is always half the symbol rate
C	Higher symbol rates require wider bandwidth
D	Lower symbol rates require wider bandwidth

29. - G8C11

How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

Select	Answer
A	On and Off
B	Mark and Space
C	High and Low
D	Dot and Dash

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

31. - G9B10

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

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

32. - G9C10

Which of the following is a Yagi antenna design variable that could be adjusted to optimize forward gain, front-to-back ratio, or SWR bandwidth?

Select	Answer
A	The number of elements on the boom
B	The spacing of each element along the boom
C	The physical length of the boom
D	All of these choices are correct

33. - G9D01

What does the term NVIS mean as related to antennas?

Select	Answer
A	Nearly Vertical Inductance System
B	Non-Varying Indicated SWR
C	Non-Varying Impedance Smoothing
D	Near Vertical Incidence sky-wave

34. - G0A10

What is one thing that can be done if evaluation shows that a neighbor might receive more than the allowable limit of RF exposure from the main lobe of a directional antenna?

Select	Answer
A	Post a warning sign that is clearly visible to the neighbor
B	Change to a non-polarized antenna with higher gain
C	Take precautions to ensure that the antenna cannot be pointed in their direction
D	Use an antenna with a higher front-to-back ratio

35. - G0B14

Which of the following is covered by the National Electrical Code?

Select	Answer
A	Acceptable modulation limits
B	Electrical safety inside the ham shack
C	RF exposure limits of the human body
D	Acceptable bandwidth limits