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 3
C	Region 2
D	All three regions

2. - G1B08

When choosing a transmitting frequency, what should you do to comply with good amateur practice?

Select	Answer
A	All of these choices are correct
B	Insure that the frequency and mode selected are within your license class privileges
C	Follow generally accepted band plans agreed to by the Amateur Radio community
D	Monitor the frequency before transmitting

3. - G1C11

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 2-meter band?

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

4. - G1D11

If a person has an expired FCC issued amateur radio license of General Class or higher, what is required before they can receive a new license?

Select	Answer
A	The applicant must pass the current element 2 exam
B	They must have a letter from the FCC showing they once held an amateur or commercial license
C	There are no requirements other than being able to show a copy of the expired license
D	The applicant must be able to produce a copy of a page from a call book published in the USA showing his or her name and address

5. - G1E11

Which of the following is the FCC term for an unattended digital station that transfers messages to and from the Internet?

Select	Answer
A	Automatically controlled digital station
B	Fail-safe digital station
C	Robotically controlled station
D	Locally controlled station

6. - G2A06

Which of the following is an advantage when using single sideband as compared to other analog voice modes on the HF amateur bands?

Select	Answer
A	Less subject to interference from atmospheric static crashes
B	Very high fidelity voice modulation
C	Less bandwidth used and greater power efficiency
D	Ease of tuning on receive and immunity to impulse noise

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 declare a temporary state of communication emergency
C	When the President's War Emergency Powers have been invoked
D	When they seize your equipment for use in disaster communications

8. - G2C04

What does the Q signal "QRL?" mean?

Select	Answer
A	"Are you operating full break-in" or "Can you operate full break-in?"
B	"Are you listening only for a specific station?"
C	"Are you busy?", or "Is this frequency in use?"
D	"Will you keep the frequency clear?"

9. - G2D03

What skills learned during hidden transmitter hunts are of help to the Amateur Auxiliary?

Select	Answer
A	Direction finding used to locate stations violating FCC Rules
B	Identification of out of band operation
C	Hunters have an opportunity to transmit on non-amateur frequencies
D	Identification of different call signs

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

11. - G3A10

What causes HF propagation conditions to vary periodically in a 28 day cycle?

Select	Answer
A	Long term oscillations in the upper atmosphere
B	The Sun's rotation on its axis
C	The position of the Moon in its orbit
D	Cyclic variation in the Earth's radiation belts

12. - G3B08

What does MUF stand for?

Select	Answer
A	The Maximum Usable Frequency for communications between two points
B	The Maximum Usable Frequency during a 24 hour period
C	The Minimum Usable Frequency for communications between two points
D	The Minimum Usable Frequency during a 24 hour period

13. - G3C05

Why is long distance communication on the 40-meter, 60-meter, 80-meter and 160-meter bands more difficult during the day?

Select	Answer
A	The F layer is unstable during daylight hours
B	The F layer absorbs signals at these frequencies during daylight hours
C	The D layer absorbs signals at these frequencies during daylight hours
D	The E layer is unstable during daylight hours

14. - G4A13

What is one reason to use the attenuator function that is present on many HF transceivers?

Select	Answer
A	To reduce power consumption when operating from batteries
B	To reduce the transmitter power when driving a linear amplifier
C	To reduce signal overload due to strong incoming signals
D	To slow down received CW signals for better copy

15. - G4B06

What is an advantage of a digital voltmeter as compared to an analog voltmeter?

Select	Answer
A	Better for measuring computer circuits
B	Faster response
C	Better for RF measurements
D	Better precision for most uses

16. - G4C02

Which of the following could be a cause of interference covering a wide range of frequencies?

Select	Answer
A	Arcing at a poor electrical connection
B	Not using a balun or line isolator to feed balanced antennas
C	Using a balun to feed an unbalanced antenna
D	Lack of rectification of the transmitter's signal in power conductors

17. - G4D01

What is the purpose of a speech processor as used in a modern transceiver?

Select	Answer
A	Increase transmitter bass response for more natural sounding SSB signals
B	Increase the intelligibility of transmitted phone signals during poor conditions
C	Prevent distortion of voice signals
D	Decrease high-frequency voice output to prevent out of band operation

18. - G4E08

What is the name of the process by which sunlight is changed directly into electricity?

Select	Answer
A	Photosynthesis
B	Photovoltaic conversion
C	Photon emission
D	Photon decomposition

19. - G5A13

Which of the following devices can be used for impedance matching at radio frequencies?

Select	Answer
A	A transformer
B	A Pi-network
C	All of these choices are correct
D	A length of transmission line

20. - G5B01

What dB change represents a two-times increase or decrease in power?

Select	Answer
A	Approximately 12 dB
B	Approximately 6 dB
C	Approximately 3 dB
D	Approximately 2 dB

21. - G5C10

What is the inductance of three 10 millihenry inductors connected in parallel?

Select	Answer
A	30 millihenrys
B	3.3 millihenrys
C	3.3 henrys
D	0.30 henrys

22. - G6A01

What is the minimum allowable discharge voltage for maximum life of a standard 12 volt lead acid battery?

Select	Answer
A	6 volts
B	8.5 volts
C	12 volts
D	10.5 volts

23. - G6B14

Which of these connector types is commonly used for audio signals in Amateur Radio stations?

Select	Answer
A	BNC
B	Type N
C	RCA Phono
D	PL-259

24. - G7A06

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

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

25. - G7B08

How is the efficiency of an RF power amplifier determined?

Select	Answer
A	Multiply the RF input power by the reciprocal of the RF output power
B	Divide the RF output power by the DC input power
C	Divide the DC input power by the DC output power
D	Add the RF input power to the DC output power

26. - G7C04

What circuit is used to combine signals from the IF amplifier and BFO and send the result to the AF amplifier in some single sideband receivers?

Select	Answer
A	Balanced modulator
B	Product detector
C	IF filter
D	RF oscillator

27. - G8A03

What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?

Select	Answer
A	Frequency convolution
B	Frequency conversion
C	Frequency transformation
D	Frequency modulation

28. - G8B01

What receiver stage combines a 14.250 MHz input signal with a 13.795 MHz oscillator signal to produce a 455 kHz intermediate frequency (IF) signal?

Select	Answer
A	Discriminator
B	Mixer
C	BFO
D	VFO

29. - G8C08

Which of the following statements is true about PSK31?

Select	Answer
A	Upper case letters make the signal stronger
B	Varicode Error Correction is used to ensure accurate message reception
C	Higher power is needed as compared to RTTY for similar error rates
D	Upper case letters use longer Varicode signals and thus slow down transmission

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 high
B	The higher the transmission line loss, the more the SWR will read artificially low
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. - 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	Lengthen the radials
C	Slope the radials downward
D	Shorten the radials

32. - G9C19

How does antenna gain stated in dBi compare to gain stated in dBd for the same antenna?

Select	Answer
A	dBi gain figures are 2.15 dB lower then dBd gain figures
B	dBi gain figures are the same as the square root of dBd gain figures multiplied by 2.15
C	dBi gain figures are the reciprocal of dBd gain figures + 2.15 dB
D	dBi gain figures are 2.15 dB higher than dBd gain figures

33. - G9D05

What is an advantage of vertical stacking of horizontally polarized Yagi antennas?

Select	Answer
A	It allows simultaneous vertical and horizontal polarization
B	It allows quick selection of vertical or horizontal polarization
C	It narrows the main lobe in elevation
D	It narrows the main lobe in azimuth

34. - G0A07

What effect does transmitter duty cycle have when evaluating RF exposure?

Select	Answer
A	A lower transmitter duty cycle permits greater short-term exposure levels
B	Low duty cycle transmitters are exempt from RF exposure evaluation requirements
C	High duty cycle transmitters are exempt from RF exposure requirements
D	A higher transmitter duty cycle permits greater short-term exposure levels

35. - G0B15

Which of the following is true of an emergency generator installation?

Select	Answer
A	The generator must be insulated from ground
B	The generator should be located in a well-ventilated area
C	Fuel should be stored near the generator for rapid refueling in case of an emergency
D	All of these choices are correct