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. - G1A11

When General Class licensees are not permitted to use the entire voice portion of a particular band, which portion of the voice segment is generally available to them?

Select	Answer
A	The upper frequency end on frequencies below 7.3 MHz and the lower end on frequencies above 14.150 MHz
B	The upper frequency end
C	The lower frequency end
D	The lower frequency end on frequencies below 7.3 MHz and the upper end on frequencies above 14.150 MHz

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	Monitor the frequency before transmitting
C	Follow generally accepted band plans agreed to by the Amateur Radio community
D	Insure that the frequency and mode selected are within your license class privileges

3. - G1C08

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

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

4. - G1D08

Which of the following criteria must be met for a non-U.S. citizen to be an accredited Volunteer Examiner?

Select	Answer
A	None of these choices is correct; a non-U.S. citizen cannot be a Volunteer Examiner
B	The person must be a resident of the U.S. for a minimum of 5 years
C	The person must hold an FCC granted Amateur Radio license of General Class or above
D	The person's home citizenship must be in ITU region 2

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	The control operator of the interrogating station must hold an Extra Class license
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	No third party traffic maybe be transmitted

6. - G2A09

Why do most amateur stations use lower sideband on the 160-meter, 75-meter and 40-meter bands?

Select	Answer
A	Lower sideband is the only sideband legal on these frequency bands
B	Current amateur practice is to use lower sideband on these frequency bands
C	Because it is fully compatible with an AM detector
D	Lower sideband is more efficient than upper sideband at these frequencies

7. - G2B06

What is a practical way to avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

Select	Answer
A	Send "QSY" on CW or if using phone, announce "the frequency is in use", then give your call and listen for a response
B	Send the letter "V" in Morse code several times and listen for a response or say "test" several times and listen for a response
C	Listen for 2 minutes before calling CQ
D	Send "QRL?" on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign

8. - G2C07

When sending CW, what does a "C" mean when added to the RST report?

Select	Answer
A	Report was read from an S meter rather than estimated
B	Key clicks
C	100 percent copy
D	Chirpy or unstable signal

9. - G2D03

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

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

10. - G2E12

Which of the following describes a waterfall display?

Select	Answer
A	Frequency is vertical, signal strength is horizontal, time is intensity
B	Frequency is horizontal, signal strength is intensity, time is vertical
C	Frequency is vertical, signal strength is intensity, time is horizontal
D	Frequency is horizontal, signal strength is vertical, time is intensity

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 position of the Moon in its orbit
C	Cyclic variation in the Earth's radiation belts
D	The Sun's rotation on its axis

12. - G3B08

What does MUF stand for?

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

13. - G3C13

What is Near Vertical Incidence Sky-wave (NVIS) propagation?

Select	Answer
A	Propagation near the MUF
B	Short distance MF or HF propagation using high elevation angles
C	Double hop propagation near the LUF
D	Long path HF propagation at sunrise and sunset

14. - G4A07

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

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

15. - G4B02

Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

Select	Answer
A	Input impedance is much lower
B	Complex waveforms can be measured
C	An oscilloscope uses less power
D	Complex impedances can be easily measured

16. - G4C06

What effect can be caused by a resonant ground connection?

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

17. - G4D07

How much must the power output of a transmitter be raised to change the S meter reading on a distant receiver from S8 to S9?

Select	Answer
A	Approximately 1.5 times
B	Approximately 2 times
C	Approximately 4 times
D	Approximately 8 times

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

19. - G5A03

Which of the following causes opposition to the flow of alternating current in an inductor?

Select	Answer
A	Admittance
B	Conductance
C	Reactance
D	Reluctance

20. - G5B14

What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50 ohm resistive load connected to the transmitter output?

Select	Answer
A	2500 watts
B	625 watts
C	5000 watts
D	8.75 watts

21. - G5C07

What is the turns ratio of a transformer used to match an audio amplifier having 600 ohm output impedance to a speaker having 4 ohm impedance?

Select	Answer
A	12.2 to 1
B	24.4 to 1
C	150 to 1
D	300 to 1

22. - G6A14

Which of the following is an advantage of ceramic capacitors as compared to other types of capacitors?

Select	Answer
A	High capacitance for given volume
B	Tight tolerance
C	High stability
D	Comparatively low cost

23. - G6B18

What is a type SMA connector?

Select	Answer
A	A type of push-on connector intended for high voltage applications
B	A small threaded connector suitable for signals up to several GHz
C	A large bayonet connector usable at power levels in excess of 1 KW
D	A connector designed for serial multiple access signals

24. - G7A02

Which of the following components are used in a power supply filter network?

Select	Answer
A	Transformers and transducers
B	Quartz crystals
C	Capacitors and inductors
D	Diodes

25. - G7B10

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

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

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	Discriminator
B	Detector
C	IF amplifier
D	Balanced modulator

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 transformation
B	Frequency conversion
C	Frequency convolution
D	Frequency modulation

28. - G8B06

What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

Select	Answer
A	3 kHz
B	16 kHz
C	8 kHz
D	5 kHz

29. - G8C01

Which of the following digital modes is designed to operate at extremely low signal strength on the HF bands?

Select	Answer
A	JT9 and JT65
B	Clover
C	RTTY
D	FSK441 and Hellschreiber

30. - G9A10

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 10 ohm impedance?

Select	Answer
A	50:1
B	2:1
C	1:5
D	5:1

31. - G9B04

What is the radiation pattern of a dipole antenna in free space in the plane of the conductor?

Select	Answer
A	It is a figure-eight off both ends of the antenna
B	It is a circle (equal radiation in all directions)
C	It has a pair of lobes on one side of the antenna and a single lobe on the other side
D	It is a figure-eight at right angles to the antenna

32. - G9C02

What is the approximate length of the driven element of a Yagi antenna?

Select	Answer
A	1/2 wavelength
B	3/4 wavelength
C	1 wavelength
D	1/4 wavelength

33. - G9D10

Which of the following describes a Beverage antenna?

Select	Answer
A	A helical antenna for space reception
B	A very long and low directional receiving antenna
C	A broad-band mobile antenna
D	A vertical antenna

34. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations when transmitter power exceeds levels specified in FCC Part 97.13?

Select	Answer
A	Post a copy of OET Bulletin 65 in the station
B	Post a copy of FCC Part 97.13 in the station
C	Perform a routine RF exposure evaluation
D	All of these choices are correct

35. - G0B11

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

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