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

2. - G1B12

Who or what determines "good engineering and good amateur practice" as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

Select	Answer
A	The ITU
B	The Control Operator
C	The FCC
D	The IEEE

3. - G1C07

What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20-meter band?

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

4. - G1D05

Which of the following must a person have before they can be an administering VE for a Technician Class license examination?

Select	Answer
A	Notification to the FCC that you want to give an examination
B	Possession of a properly obtained telegraphy license
C	Receipt of a CSCE for General Class
D	An FCC General Class or higher license and VEC accreditation

5. - G1E02

When may a 10-meter repeater retransmit the 2-meter signal from a station having a Technician Class control operator?

Select	Answer
A	Only during an FCC declared general state of communications emergency
B	Under no circumstances
C	Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission
D	Only if the 10-meter repeater control operator holds at least a General Class license

6. - G2A05

Which mode of voice communication is most commonly used on the HF amateur bands?

Select	Answer
A	Double sideband
B	Phase modulation
C	Single sideband
D	Frequency modulation

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. - G2C04

What does the Q signal "QRL?" mean?

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

9. - G2D08

What is a reason why many amateurs keep a station log?

Select	Answer
A	The ITU requires a log of all international contacts
B	The ITU requires a log of all international third party traffic
C	To help with a reply if the FCC requests information
D	The log provides evidence of operation needed to renew a license without retest

10. - G2E06

What is the most common frequency shift for RTTY emissions in the amateur HF bands?

Select	Answer
A	425 Hz
B	85 Hz
C	170 Hz
D	850 Hz

11. - G3A01

What is the significance of the sunspot number with regard to HF propagation?

Select	Answer
A	All of these choices are correct.
B	Lower sunspot numbers generally indicate greater probability of sporadic E propagation
C	Higher sunspot numbers generally indicate a greater probability of good propagation at higher frequencies
D	A zero sunspot number indicate radio propagation is not possible on any band

12. - G3B09

What is the approximate maximum distance along the Earth's surface that is normally covered in one hop using the F2 region?

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

13. - G3C09

What type of radio wave propagation allows a signal to be detected at a distance too far for ground wave propagation but too near for normal sky-wave propagation?

Select	Answer
A	Short-path skip
B	Sporadic-E skip
C	Faraday rotation
D	Scatter

14. - G4A09

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

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

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

16. - G4C03

What sound is heard from an audio device or telephone if there is interference from a nearby single sideband phone transmitter?

Select	Answer
A	Distorted speech
B	Clearly audible speech
C	A steady hum whenever the transmitter is on the air
D	On-and-off humming or clicking

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	7.1765 to 7.1795 MHz
B	7.178 to 7.184 MHz
C	7.178 to 7.181 MHz
D	7.175 to 7.178 MHz

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 limits the current flowing from the panel to a safe value
B	The diode serves to regulate the charging voltage to prevent overcharge
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. - G5A13

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

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

20. - G5B05

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

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

21. - G5C04

What is the total resistance of three 100 ohm resistors in parallel?

Select	Answer
A	33.3 ohms
B	0.30 ohms
C	300 ohms
D	0.33 ohms

22. - G6A03

What is the approximate junction threshold voltage of a germanium diode?

Select	Answer
A	1.0 volts
B	0.1 volt
C	0.3 volts
D	0.7 volts

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	Faster response time
C	Longer life
D	All of these choices are correct

24. - G7A13

Which symbol in Figure G7-1 represents a tapped inductor?

Select	Answer
A	Symbol 6
B	Symbol 7
C	Symbol 1
D	Symbol 11

25. - G7B13

What is the reason for neutralizing the final amplifier stage of a transmitter?

Select	Answer
A	To eliminate self-oscillations
B	To cut off the final amplifier during standby periods
C	To keep the carrier on frequency
D	To limit the modulation index

26. - G7C08

What type of circuit is used in many FM receivers to convert signals coming from the IF amplifier to audio?

Select	Answer
A	Discriminator
B	Mixer
C	Phase inverter
D	Product detector

27. - G8A02

What is the name of the process that changes the phase angle of an RF wave to convey information?

Select	Answer
A	Angle convolution
B	Radian inversion
C	Phase convolution
D	Phase modulation

28. - G8B03

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

Select	Answer
A	Heterodyning
B	Phase inverting
C	Synthesizing
D	Cancellation

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 requests a change in transmitting protocol
C	It terminates the contact
D	It requests the packet be retransmitted

30. - G9A11

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

Select	Answer
A	1:1
B	50:50
C	2:1
D	0:0

31. - G9B03

What happens to the feed point impedance of a ground plane antenna when its radials are changed from horizontal to sloping downward?

Select	Answer
A	It reaches a maximum at an angle of 45 degrees
B	It stays the same
C	It decreases
D	It increases

32. - G9C02

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

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

33. - G9D08

Why is a Beverage antenna not used for transmitting?

Select	Answer
A	It has high losses compared to other types of antennas
B	All of these choices are correct
C	Its impedance is too low for effective matching
D	It has poor directivity

34. - G0A05

What must you do if an evaluation of your station shows RF energy radiated from your station exceeds permissible limits?

Select	Answer
A	Secure written permission from your neighbors to operate above the controlled MPE limits
B	All of these choices are correct
C	Take action to prevent human exposure to the excessive RF fields
D	File an Environmental Impact Statement (EIS-97) with the FCC

35. - G0B15

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

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

Figure G7-1