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. - G1A04

Which of the following amateur bands is restricted to communication on only specific channels, rather than frequency ranges?

Select	Answer
A	11 meters
B	30 meters
C	60 meters
D	12 meters

2. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	The frequency must be posted on the Internet or published in a national periodical
B	A beacon station may not use automatic control
C	The frequency must be coordinated with the National Beacon Organization
D	There must be no more than one beacon signal transmitting in the same band from the same station location

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	1200 baud
B	19.6 kilobaud
C	56 kilobaud
D	300 baud

4. - G1D10

What is the minimum age that one must be to qualify as an accredited Volunteer Examiner?

Select	Answer
A	18 years
B	21 years
C	There is no age limit
D	12 years

5. - G1E06

Which of the following applies in the event of interference between a coordinated repeater and an uncoordinated repeater?

Select	Answer
A	Both repeater licensees share equal responsibility to resolve the interference
B	The licensee of the coordinated repeater has primary responsibility to resolve the interference
C	The frequency coordinator bears primary responsibility to resolve the interference
D	The licensee of the uncoordinated repeater has primary responsibility to resolve the interference

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

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

8. - G2C03

What does it mean when a CW operator sends "KN" at the end of a transmission?

Select	Answer
A	Closing station now
B	Listening for novice stations
C	Listening only for a specific station or stations
D	Operating full break-in

9. - G2D10

What is QRP operation?

Select	Answer
A	Remote piloted model control
B	Transmission using Quick Response Protocol
C	Low power transmit operation
D	Traffic relay procedure net operation

10. - G2E07

What segment of the 80-meter band is most commonly used for digital transmissions?

Select	Answer
A	3500 - 3525 kHz
B	3700 - 3750 kHz
C	3775 - 3825 kHz
D	3570 - 3600 kHz

11. - G3A03

Approximately how long does it take the increased ultraviolet and X-ray radiation from solar flares to affect radio propagation on the Earth?

Select	Answer
A	28 days
B	20 to 40 hours
C	1 to 2 hours
D	8 minutes

12. - G3B08

What does MUF stand for?

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

13. - G3C04

What does the term "critical angle" mean as used in radio wave propagation?

Select	Answer
A	The highest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions
B	The long path azimuth of a distant station
C	The lowest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions
D	The short path azimuth of a distant station

14. - G4A09

Why is a time delay sometimes included in a transmitter keying circuit?

Select	Answer
A	To allow time for a warning signal to be sent to other stations
B	To prevent stations from interfering with one another
C	To allow the transmitter power regulators to charge properly
D	To allow time for transmit-receive changeover operations to complete properly before RF output is allowed

15. - G4B08

Which of the following instruments may be used to monitor relative RF output when making antenna and transmitter adjustments?

Select	Answer
A	A field strength meter
B	A Q meter
C	A multimeter
D	An antenna noise bridge

16. - G4C11

Which of the following is a function of a digital signal processor?

Select	Answer
A	To increase antenna bandwidth
B	To provide adequate grounding
C	To remove noise from received signals
D	To increase antenna gain

17. - G4D08

What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Select	Answer
A	7.178 to 7.184 MHz
B	7.178 to 7.181 MHz
C	7.175 to 7.178 MHz
D	7.1765 to 7.1795 MHz

18. - G4E07

Which of the following may cause interference to be heard in the receiver of an HF radio installed in a recent model vehicle?

Select	Answer
A	The vehicle control computer
B	The fuel delivery system
C	The battery charging system
D	All of these choices are correct

19. - G5A12

What is one reason to use an impedance matching transformer?

Select	Answer
A	To minimize transmitter power output
B	To minimize radiation resistance
C	To maximize the transfer of power
D	To reduce power supply ripple

20. - G5B05

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

Select	Answer
A	Approximately 61 milliwatts
B	Approximately 11 watts
C	Approximately 61 watts
D	Approximately 11 milliwatts

21. - G5C08

What is the equivalent capacitance of two 5.0 nanofarad capacitors and one 750 picofarad capacitor connected in parallel?

Select	Answer
A	1733 picofarads
B	10.750 nanofarads
C	3583 picofarads
D	576.9 nanofarads

22. - G6A04

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

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

23. - G6B07

Which of the following is an advantage of an LED indicator compared to an incandescent indicator?

Select	Answer
A	Lower power consumption
B	All of these choices are correct
C	Faster response time
D	Longer life

24. - G7A12

Which symbol in Figure G7-1 represents a multiple-winding transformer?

Select	Answer
A	Symbol 6
B	Symbol 1
C	Symbol 4
D	Symbol 7

25. - G7B05

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

Select	Answer
A	6
B	8
C	3
D	16

26. - G7C03

What circuit is used to process signals from the RF amplifier and local oscillator then send the result to the IF filter in a superheterodyne receiver?

Select	Answer
A	Mixer
B	IF amplifier
C	Detector
D	Balanced modulator

27. - G8A06

What is one advantage of carrier suppression in a single sideband phone transmission versus full carrier amplitude modulation?

Select	Answer
A	Audio fidelity is improved
B	Available transmitter power can be used more effectively
C	Simpler receiving equipment can be used
D	Greater modulation percentage is obtainable with lower distortion

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 improves impedance matching of the antenna
D	It results in the best signal to noise ratio

29. - G8C06

What action results from a failure to exchange information due to excessive transmission attempts when using PACTOR or WINMOR?

Select	Answer
A	Encoding reverts to the default character set
B	The checksum overflows
C	Packets will be routed incorrectly
D	The connection is dropped

30. - G9A02

What are the typical characteristic impedances of coaxial cables used for antenna feed lines at amateur stations?

Select	Answer
A	80 and 100 ohms
B	25 and 30 ohms
C	50 and 75 ohms
D	500 and 750 ohms

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	16 feet
D	32 feet

32. - G9C03

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

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

33. - G9D06

Which of the following is an advantage of a log periodic antenna?

Select	Answer
A	Harmonic suppression
B	Wide bandwidth
C	Higher gain per element than a Yagi antenna
D	Polarization diversity

34. - G0A09

What type of instrument can be used to accurately measure an RF field?

Select	Answer
A	A calibrated field strength meter with a calibrated antenna
B	An SWR meter with a peak-reading function
C	An oscilloscope with a high-stability crystal marker generator
D	A receiver with an S meter

35. - G0B11

Which of the following is good practice for lightning protection grounds?

Select	Answer
A	They must be bonded together with all other grounds
B	They must be bonded to all buried water and gas lines
C	Bends in ground wires must be made as close as possible to a right angle
D	Lightning grounds must be connected to all ungrounded wiring

Figure G7-1