US Amateur Radio - General (Element 3, 2015-2019) Practice Test

Anonymous User

US Amateur Radio - General (Element 3, 2015-2019) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

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 ITU
B	The FCC
C	The IEEE
D	The Control Operator

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	19.6 kilobaud
C	1200 baud
D	56 kilobaud

4. - G1D09

How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

Select	Answer
A	180 days
B	For as long as your current license is valid
C	30 days
D	365 days

5. - G1E12

Under what circumstances are messages that are sent via digital modes exempt from Part 97 third party rules that apply to other modes of communication?

Select	Answer
A	Under no circumstances
B	When messages are encrypted
C	When messages are not encrypted
D	When under automatic control

6. - G2A05

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

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

7. - G2B08

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

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

8. - G2C04

What does the Q signal "QRL?" mean?

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

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 provide emergency and public safety communications
D	To coordinate repeaters for efficient and orderly spectrum usage

10. - G2E13

Which communication system sometimes uses the Internet to transfer messages?

Select	Answer
A	Winlink
B	ARES
C	Skywarn
D	RTTY

11. - G3A09

What effect does a high sunspot number have on radio communications?

Select	Answer
A	Microwave communications become unstable
B	Long-distance communication in the upper HF and lower VHF range is enhanced
C	High-frequency radio signals become weak and distorted
D	Frequencies above 300 MHz become usable for long-distance communication

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	Double hop propagation along the path is more common
C	HF communications over the path are enhanced
D	Propagation over the path on all HF frequencies is enhanced

13. - G3C03

Why is the F2 region mainly responsible for the longest distance radio wave propagation?

Select	Answer
A	All of these choices are correct
B	Because it is the highest ionospheric region
C	Because it is the densest ionospheric layer
D	Because it does not absorb radio waves as much as other ionospheric regions

14. - G4A02

What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver?

Select	Answer
A	More stations can be accommodated within a given signal passband
B	It may be possible to reduce or eliminate interference from other signals
C	Interference from impulse noise will be eliminated
D	Accidental out of band operation can be prevented

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

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

17. - G4D04

What does an S meter measure?

Select	Answer
A	Transmitter power output
B	Impedance
C	Conductance
D	Received signal strength

18. - G4E08

What is the name of the process by which sunlight is changed directly into electricity?

Select	Answer
A	Photon decomposition
B	Photosynthesis
C	Photovoltaic conversion
D	Photon emission

19. - G5A01

What is impedance?

Select	Answer
A	The inverse of resistance
B	The electric charge stored by a capacitor
C	The force of repulsion between two similar electric fields
D	The opposition to the flow of current in an AC circuit

20. - G5B05

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

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

21. - G5C17

What is the value in nanofarads (nF) of a 22,000 pF capacitor?

Select	Answer
A	2.2 nF
B	22 nF
C	0.22 nF
D	220 nF

22. - G6A15

Which of the following is an advantage of an electrolytic capacitor?

Select	Answer
A	Much less leakage than any other type
B	Inexpensive RF capacitor
C	Tight tolerance
D	High capacitance for a given volume

23. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Mode Modulated Integrated Circuit
B	Monolithic Microwave Integrated Circuit
C	Military Manufactured Integrated Circuit
D	Multi Megabyte Integrated Circuit

24. - G7A12

Which symbol in Figure G7-1 represents a multiple-winding transformer?

Select	Answer
A	Symbol 7
B	Symbol 4
C	Symbol 6
D	Symbol 1

25. - G7B01

Complex digital circuitry can often be replaced by what type of integrated circuit?

Select	Answer
A	Window comparator
B	Microcontroller
C	Phase detector
D	Charge-coupled device

26. - G7C07

What is the simplest combination of stages that implement a superheterodyne receiver?

Select	Answer
A	HF oscillator, prescaler, audio amplifier
B	RF amplifier, detector, audio amplifier
C	HF oscillator, mixer, detector
D	RF amplifier, mixer, IF discriminator

27. - G8A05

What type of modulation varies the instantaneous power level of the RF signal?

Select	Answer
A	Frequency shift keying
B	Amplitude modulation
C	Phase modulation
D	Frequency modulation

28. - G8B03

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

Select	Answer
A	Phase inverting
B	Synthesizing
C	Heterodyning
D	Cancellation

29. - G8C11

How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

Select	Answer
A	Dot and Dash
B	Mark and Space
C	On and Off
D	High and Low

30. - G9A09

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 200 ohm impedance?

Select	Answer
A	4:1
B	1:4
C	2:1
D	1:2

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

32. - G9C19

How does antenna gain stated in dBi compare to gain stated in dBd for the same antenna?

Select	Answer
A	dBi gain figures are 2.15 dB higher than dBd gain figures
B	dBi gain figures are 2.15 dB lower then dBd gain figures
C	dBi gain figures are the same as the square root of dBd gain figures multiplied by 2.15
D	dBi gain figures are the reciprocal of dBd gain figures + 2.15 dB

33. - G9D09

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

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

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

35. - G0B05

Which of the following conditions will cause a Ground Fault Circuit Interrupter (GFCI) to disconnect the 120 or 240 Volt AC line power to a device?

Select	Answer
A	Overvoltage on the voltage-carrying wires
B	Current flowing from one or more of the voltage-carrying wires to the neutral wire
C	Current flowing from one or more of the voltage-carrying wires directly to ground
D	All of these choices are correct

Figure G7-1