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
C	The upper frequency end on frequencies below 7.3 MHz and the lower end on frequencies above 14.150 MHz
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 FCC
B	The Control Operator
C	The ITU
D	The IEEE

3. - G1C10

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 10-meter band?

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

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

5. - G1E04

Which of the following conditions require a licensed Amateur Radio operator to take specific steps to avoid harmful interference to other users or facilities?

Select	Answer
A	All of these choices are correct
B	When operating within one mile of an FCC Monitoring Station
C	When using a band where the Amateur Service is secondary
D	When a station is transmitting spread spectrum emissions

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	Upper sideband
B	Vestigial sideband
C	Lower sideband
D	Double sideband

7. - G2B02

What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

Select	Answer
A	Acknowledge the station in distress and determine what assistance may be needed
B	Immediately cease all transmissions
C	Continue your communication because you were on the frequency first
D	Change to a different frequency

8. - G2C04

What does the Q signal "QRL?" mean?

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

9. - G2D02

Which of the following are objectives of the Amateur Auxiliary?

Select	Answer
A	To conduct efficient and orderly amateur licensing examinations
B	To encourage self-regulation and compliance with the rules by radio amateur operators
C	To coordinate repeaters for efficient and orderly spectrum usage
D	To provide emergency and public safety communications

10. - G2E06

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

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

11. - G3A07

At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?

Select	Answer
A	At any point in the solar cycle
B	Only at the maximum point of the solar cycle
C	Only at the minimum point of the solar cycle
D	At the summer solstice

12. - G3B11

What happens to HF propagation when the LUF exceeds the MUF?

Select	Answer
A	No HF radio frequency will support ordinary sky-wave communications over the path
B	HF communications over the path are enhanced
C	Double hop propagation along the path is more common
D	Propagation over the path on all HF frequencies is enhanced

13. - G3C10

Which of the following might be an indication that signals heard on the HF bands are being received via scatter propagation?

Select	Answer
A	The signal is heard on a frequency above the Maximum Usable Frequency
B	The communication is during a sudden ionospheric disturbance
C	The communication is during a sunspot maximum
D	The signal is heard on a frequency below the Maximum Usable Frequency

14. - G4A12

Which of the following is a common use for the dual VFO feature on a transceiver?

Select	Answer
A	To permit full duplex operation, that is transmitting and receiving at the same time
B	To permit monitoring of two different frequencies
C	To allow transmitting on two frequencies at once
D	To facilitate computer interface

15. - G4B04

What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?

Select	Answer
A	The local oscillator of the transmitter
B	The transmitter balanced mixer output
C	An external RF oscillator
D	The attenuated RF output of the transmitter

16. - G4C12

Which of the following is an advantage of a receiver DSP IF filter as compared to an analog filter?

Select	Answer
A	A wide range of filter bandwidths and shapes can be created
B	Mixing products are greatly reduced
C	Fewer digital components are required
D	The DSP filter is much more effective at VHF frequencies

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 8 times
B	Approximately 2 times
C	Approximately 4 times
D	Approximately 1.5 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 greatly increases the efficiency during times of high illumination
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 limits the current flowing from the panel to a safe value

19. - G5A11

Which of the following describes one method of impedance matching between two AC circuits?

Select	Answer
A	Reduce the power output of the first circuit
B	Insert an LC network between the two circuits
C	Insert a circulator between the two circuits
D	Increase the power output of the first circuit

20. - G5B07

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?

Select	Answer
A	The peak value
B	The peak-to-peak value
C	The reciprocal of the RMS value
D	The RMS value

21. - G5C04

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

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

22. - G6A11

Which of the following solid state devices is most like a vacuum tube in its general operating characteristics?

Select	Answer
A	A varistor
B	A field effect transistor
C	A bipolar transistor
D	A tunnel diode

23. - G6B04

What is meant by the term ROM?

Select	Answer
A	Read Only Memory
B	Resistant to Overload Memory
C	Random Operational Memory
D	Resistor Operated Memory

24. - G7A07

What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?

Select	Answer
A	A series of DC pulses at twice the frequency of the AC input
B	A steady DC voltage
C	A sine wave at half the frequency of the AC input
D	A series of DC pulses at the same frequency as the AC input

25. - G7B14

Which of the following describes a linear amplifier?

Select	Answer
A	A Class C high efficiency amplifier
B	An amplifier used as a frequency multiplier
C	Any RF power amplifier used in conjunction with an amateur transceiver
D	An amplifier in which the output preserves the input waveform

26. - G7C10

How is Digital Signal Processor filtering accomplished?

Select	Answer
A	By using direct signal phasing
B	By differential spurious phasing
C	By converting the signal from digital to analog and taking the difference of mixing products
D	By converting the signal from analog to digital and using digital processing

27. - G8A04

What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?

Select	Answer
A	Phase modulation
B	Pulse modulation
C	Multiplex modulation
D	Amplitude modulation

28. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

Select	Answer
A	Lower symbol rates require wider bandwidth
B	Symbol rate and bandwidth are not related
C	Bandwidth is always half the symbol rate
D	Higher symbol rates require wider bandwidth

29. - G8C12

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

Select	Answer
A	Binary
B	Viterbi
C	Varicode
D	Volumetric

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	50 and 75 ohms
C	500 and 750 ohms
D	25 and 30 ohms

31. - G9B01

What is one disadvantage of a directly fed random-wire HF antenna?

Select	Answer
A	It produces only vertically polarized radiation
B	You may experience RF burns when touching metal objects in your station
C	It is more effective on the lower HF bands than on the higher bands
D	It must be longer than 1 wavelength

32. - G9C04

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

Select	Answer
A	The reflector is normally the longest element
B	The reflector is normally the shortest element
C	All of the elements must be the same length
D	The director is normally the longest element

33. - G9D01

What does the term NVIS mean as related to antennas?

Select	Answer
A	Non-Varying Indicated SWR
B	Near Vertical Incidence sky-wave
C	Non-Varying Impedance Smoothing
D	Nearly Vertical Inductance System

34. - G0A10

What is one thing that can be done if evaluation shows that a neighbor might receive more than the allowable limit of RF exposure from the main lobe of a directional antenna?

Select	Answer
A	Change to a non-polarized antenna with higher gain
B	Use an antenna with a higher front-to-back ratio
C	Take precautions to ensure that the antenna cannot be pointed in their direction
D	Post a warning sign that is clearly visible to the neighbor

35. - G0B08

What should be done by any person preparing to climb a tower that supports electrically powered devices?

Select	Answer
A	Make sure all circuits that supply power to the tower are locked out and tagged
B	Notify the electric company that a person will be working on the tower
C	Unground the base of the tower
D	All of these choices are correct