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	30 meters
D	160 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	The frequency must be coordinated with the National Beacon Organization
C	There must be no more than one beacon signal transmitting in the same band from the same station location
D	A beacon station may not use automatic control

3. - G1C06

Which of the following is a limitation on transmitter power on the 1.8 MHz band?

Select	Answer
A	1200 watts PEP output
B	1000 watts PEP output
C	200 watts PEP output
D	1500 watts PEP output

4. - G1D02

What license examinations may you administer when you are an accredited VE holding a General Class operator license?

Select	Answer
A	General only
B	Extra, General and Technician
C	Technician only
D	General and Technician

5. - G1E03

What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?

Select	Answer
A	No third party traffic maybe be transmitted
B	The interrogating transmission must be made by another automatically controlled station
C	The station initiating the contact must be under local or remote control
D	The control operator of the interrogating station must hold an Extra Class license

6. - G2A02

Which of the following modes is most commonly used for voice communications on the 160-meter, 75-meter, and 40-meter bands?

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

7. - G2B11

What frequency should be used to send a distress call?

Select	Answer
A	Only frequencies authorized for RACES or ARES stations
B	Whichever frequency has the best chance of communicating the distress message
C	Only frequencies that are within your operating privileges
D	Only frequencies used by police, fire or emergency medical services

8. - G2C11

What does the Q signal "QRV" mean?

Select	Answer
A	I am quitting for the day
B	There is interference on the frequency
C	You are sending too fast
D	I am ready to receive messages

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 the manufacturer of your equipment and the antenna used
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 all third party traffic

10. - G2E08

In what segment of the 20-meter band are most PSK31 operations commonly found?

Select	Answer
A	In the middle of the CW segment, near 14.100 MHz
B	At the bottom of the slow-scan TV segment, near 14.230 MHz
C	At the top of the SSB phone segment, near 14.325 MHz
D	Below the RTTY segment, near 14.070 MHz

11. - G3A08

Which of the following effects can a geomagnetic storm have on radio propagation?

Select	Answer
A	Improved ground-wave propagation
B	Improved chances of UHF ducting
C	Degraded high-latitude HF propagation
D	Improved high-latitude HF propagation

12. - G3B10

What is the approximate maximum distance along the Earth's surface that is normally covered in one hop using the E region?

Select	Answer
A	180 miles
B	12,000 miles
C	2,500 miles
D	1,200 miles

13. - G3C01

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

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

14. - G4A07

What condition can lead to permanent damage to a solid-state RF power amplifier?

Select	Answer
A	Low input SWR
B	Excessive drive power
C	Shorting the input signal to ground
D	Insufficient drive power

15. - G4B03

Which of the following is the best instrument to use when checking the keying waveform of a CW transmitter?

Select	Answer
A	An oscilloscope
B	A sidetone monitor
C	A wavemeter
D	A field strength meter

16. - G4C04

What is the effect on an audio device or telephone system if there is interference from a nearby CW transmitter?

Select	Answer
A	On-and-off humming or clicking
B	Severely distorted audio
C	A CW signal at a nearly pure audio frequency
D	A chirpy CW signal

17. - G4D10

How close to the lower edge of the 40-meter General Class phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?

Select	Answer
A	At least 3 kHz above the edge of the segment
B	At least 3 kHz below the edge of the segment
C	At least 1 kHz above the edge of the segment
D	Your displayed carrier frequency may be set at the edge of the segment

18. - G4E10

What is the reason that a series diode is connected between a solar panel and a storage battery that is being charged by the panel?

Select	Answer
A	The diode prevents self-discharge of the battery though the panel during times of low or no illumination
B	The diode serves to regulate the charging voltage to prevent overcharge
C	The diode greatly increases the efficiency during times of high illumination
D	The diode limits the current flowing from the panel to a safe value

19. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Farad
B	Ohm
C	Siemens
D	Ampere

20. - G5B01

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

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

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	5.9 volts
B	540 volts
C	2370 volts
D	26.7 volts

22. - G6A10

Which element of a triode vacuum tube is used to regulate the flow of electrons between cathode and plate?

Select	Answer
A	Screen Grid
B	Trigger electrode
C	Heater
D	Control grid

23. - G6B06

What kind of device is an integrated circuit operational amplifier?

Select	Answer
A	Programmable Logic
B	Digital
C	MMIC
D	Analog

24. - G7A09

Which symbol in figure G7-1 represents a field effect transistor?

Select	Answer
A	Symbol 1
B	Symbol 2
C	Symbol 4
D	Symbol 5

25. - G7B04

Which of the following describes the function of a two input NOR gate?

Select	Answer
A	Output is high only when both inputs are high
B	Output is low only when both inputs are high
C	Output is low when either or both inputs are high
D	Output is high when either or both inputs are low

26. - G7C02

Which circuit is used to combine signals from the carrier oscillator and speech amplifier then send the result to the filter in some single sideband phone transmitters?

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

27. - G8A01

How is an FSK signal generated?

Select	Answer
A	By changing an oscillator's frequency directly with a digital control signal
B	By using a transceiver's computer data interface protocol to change frequencies
C	By keying an FM transmitter with a sub-audible tone
D	By reconfiguring the CW keying input to act as a tone generator

28. - G8B03

What is another term for the mixing of two RF signals?

Select	Answer
A	Synthesizing
B	Heterodyning
C	Cancellation
D	Phase inverting

29. - G8C12

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

Select	Answer
A	Volumetric
B	Binary
C	Viterbi
D	Varicode

30. - G9A02

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

Select	Answer
A	50 and 75 ohms
B	80 and 100 ohms
C	25 and 30 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	32 feet
C	16 feet
D	24 feet

32. - G9C01

Which of the following would increase the bandwidth of a Yagi antenna?

Select	Answer
A	Tapered-diameter elements
B	Closer element spacing
C	Loading coils in series with the element
D	Larger diameter elements

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. - G0A04

What does "time averaging" mean in reference to RF radiation exposure?

Select	Answer
A	The average amount of power developed by the transmitter over a specific 24 hour period
B	The total RF exposure averaged over a certain time
C	The average time it takes RF radiation to have any long-term effect on the body
D	The total time of the exposure

35. - G0B09

Why should soldered joints not be used with the wires that connect the base of a tower to a system of ground rods?

Select	Answer
A	The resistance of solder is too high
B	Solder has too high a dielectric constant to provide adequate lightning protection
C	Solder flux will prevent a low conductivity connection
D	A soldered joint will likely be destroyed by the heat of a lightning strike

Figure G7-1