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. - G1A08

Which of the following frequencies is within the General Class portion of the 80-meter band?

Select	Answer
A	2560 kHz
B	1855 kHz
C	3650 kHz
D	3560 kHz

2. - G1B02

With which of the following conditions must beacon stations comply?

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

3. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

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

4. - G1D06

When must you add the special identifier "AG" after your call sign if you are a Technician Class licensee and have a CSCE for General Class operator privileges, but the FCC has not yet posted your upgrade on its website ?

Select	Answer
A	A special identifier is not required as long as your General Class license application has been filed with the FCC
B	Whenever you operate using General Class frequency privileges
C	Whenever you operate on any amateur frequency
D	Whenever you operate using Technician frequency privileges

5. - G1E06

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

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

6. - G2A01

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

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

7. - G2B08

What is the "DX window" in a voluntary band plan?

Select	Answer
A	An FCC rule that allows only digital contacts in that portion of the band
B	A portion of the band that has been voluntarily set aside for digital contacts only
C	An FCC rule that prohibits contacts between stations within the United States and possessions in that portion of the band
D	A portion of the band that should not be used for contacts between stations within the 48 contiguous United States

8. - G2C09

What does the Q signal "QSL" mean?

Select	Answer
A	Send slower
B	We have worked before
C	We have already confirmed by card
D	I acknowledge receipt

9. - G2D09

What information is traditionally contained in a station log?

Select	Answer
A	All of these choices are correct
B	Band and/or frequency of the contact
C	Call sign of station contacted and the signal report given
D	Date and time of contact

10. - G2E01

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

Select	Answer
A	USB
B	LSB
C	DSB
D	CW

11. - G3A10

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

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

12. - G3B02

Which of the following is a good indicator of the possibility of sky-wave propagation on the 6-meter band?

Select	Answer
A	Long skip sky-wave propagation on the 10-meter band
B	Short skip sky-wave propagation on the 10-meter band
C	Long delayed echoes on the 10-meter band
D	Severe attenuation of signals on the 10-meter band

13. - G3C07

What makes HF scatter signals often sound distorted?

Select	Answer
A	The ionospheric layer involved is unstable
B	The E-region is not present
C	Ground waves are absorbing much of the signal
D	Energy is scattered into the skip zone through several different radio wave paths

14. - G4A10

What is the purpose of an electronic keyer?

Select	Answer
A	VOX operation
B	Automatic generation of strings of dots and dashes for CW operation
C	Computer interface for PSK and RTTY operation
D	Automatic transmit/receive switching

15. - G4B14

What is an instance in which the use of an instrument with analog readout may be preferred over an instrument with a digital readout?

Select	Answer
A	When high precision is desired
B	When measuring the frequency of an oscillator
C	When testing logic circuits
D	When adjusting tuned circuits

16. - G4C06

What effect can be caused by a resonant ground connection?

Select	Answer
A	A ground loop
B	High RF voltages on the enclosures of station equipment
C	Corrosion of the ground rod
D	Overheating of ground straps

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

18. - G4E02

What is the purpose of a corona ball on a HF mobile antenna?

Select	Answer
A	To narrow the operating bandwidth of the antenna
B	To reduce high voltage discharge from the tip of the antenna
C	To increase the "Q" of the antenna
D	To reduce the chance of damage if the antenna should strike an object

19. - G5A04

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

Select	Answer
A	Conductance
B	Reactance
C	Admittance
D	Reluctance

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 2 dB
D	Approximately 3 dB

21. - G5C01

What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?

Select	Answer
A	Mutual inductance
B	Mutual capacitance
C	Displacement current coupling
D	Capacitive coupling

22. - G6A09

Which of the following describes the construction of a MOSFET?

Select	Answer
A	The gate is separated from the channel with a thin insulating layer
B	The source is formed by depositing metal on silicon
C	The gate is formed by a back-biased junction
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	Monolithic Microwave Integrated Circuit
B	Mode Modulated Integrated Circuit
C	Military Manufactured Integrated Circuit
D	Multi Megabyte Integrated Circuit

24. - G7A08

Which of the following is an advantage of a switchmode power supply as compared to a linear power supply?

Select	Answer
A	High frequency operation allows the use of smaller components
B	All of these choices are correct
C	Faster switching time makes higher output voltage possible
D	Fewer circuit components are required

25. - G7B10

Which of the following is a characteristic of a Class A amplifier?

Select	Answer
A	No need for bias
B	Low distortion
C	Low standby power
D	High Efficiency

26. - G7C05

Which of the following is an advantage of a transceiver controlled by a direct digital synthesizer (DDS)?

Select	Answer
A	Variable frequency with the stability of a crystal oscillator
B	Relatively high power output
C	Relatively low power consumption
D	Wide tuning range and no need for band switching

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 modulation
B	Frequency transformation
C	Frequency convolution
D	Frequency conversion

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	101.75 Hz
B	60 kHz
C	416.7 Hz
D	5 kHz

29. - G8C07

How does the receiving station respond to an ARQ data mode packet containing errors?

Select	Answer
A	It sends the packet back to the transmitting station
B	It terminates the contact
C	It requests the packet be retransmitted
D	It requests a change in transmitting protocol

30. - G9A01

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

Select	Answer
A	The radius of the conductors and the frequency of the signal
B	The distance between the centers of the conductors and the radius of the conductors
C	The frequency of the signal and the length of the line
D	The distance between the centers of the conductors 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	24 feet
B	8 feet
C	32 feet
D	16 feet

32. - G9C20

What is meant by the terms dBi and dBd when referring to antenna gain?

Select	Answer
A	dBi refers to an isometric antenna, dBd refers to a discone antenna
B	dBi refers to an ionospheric reflecting antenna, dBd refers to a dissipative antenna
C	dBi refers to an isotropic antenna, dBd refers to a dipole antenna
D	dBi refers to an inverted-vee antenna, dBd refers to a downward reflecting antenna

33. - G9D09

Which of the following is an application for a Beverage antenna?

Select	Answer
A	Directional receiving for low HF bands
B	Portable direction finding at higher HF frequencies
C	Portable direction finding at lower HF frequencies
D	Directional transmitting for low HF bands

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	A receiver with an S meter
C	An SWR meter with a peak-reading function
D	An oscilloscope with a high-stability crystal marker generator

35. - G0B04

Which of the following is a primary reason for not placing a gasoline-fueled generator inside an occupied area?

Select	Answer
A	Danger of carbon monoxide poisoning
B	Danger of engine over torque
C	Lack of nitrogen for adequate combustion
D	Lack of oxygen for adequate combustion