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. - G1A01

On which of the following bands is a General Class license holder granted all amateur frequency privileges?

Select	Answer
A	160, 80, 40, and 10 meters
B	160, 60, 30, 17, 12, and 10 meters
C	60, 20, 17, and 12 meters
D	160, 30, 17, 15, 12, and 10 meters

2. - G1B04

Which of the following must be true before amateur stations may provide communications to broadcasters for dissemination to the public?

Select	Answer
A	The FCC must have declared a state of emergency
B	All of these choices are correct
C	The communications must directly relate to the immediate safety of human life or protection of property and there must be no other means of communication reasonably available before or at the time of the event
D	The communications must be approved by a local emergency preparedness official and conducted on officially designated frequencies

3. - G1C05

Which of the following is a limitation on transmitter power on the 28 MHz band for a General Class control operator?

Select	Answer
A	1000 watts PEP output
B	1500 watts PEP output
C	2000 watts PEP output
D	100 watts PEP output

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

5. - G1E11

Which of the following is the FCC term for an unattended digital station that transfers messages to and from the Internet?

Select	Answer
A	Fail-safe digital station
B	Robotically controlled station
C	Automatically controlled digital station
D	Locally controlled station

6. - G2A08

Which of the following is a recommended way to break into a contact when using phone?

Select	Answer
A	Say your call sign during a break between transmissions by the other stations
B	Say "Break Break Break" and wait for a response
C	Say "QRZ" several times followed by your call sign
D	Say "CQ" followed by the call sign of either station

7. - G2B01

Which of the following is true concerning access to frequencies in non-emergency situations?

Select	Answer
A	Except during FCC declared emergencies, no one has priority access to frequencies
B	Nets always have priority
C	Contest operations must always yield to non-contest use of frequencies
D	QSOs in progress always have priority

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	100 percent copy
C	Chirpy or unstable signal
D	Key clicks

9. - G2D01

What is the Amateur Auxiliary to the FCC?

Select	Answer
A	Amateur volunteers who conduct frequency coordination for amateur VHF repeaters
B	Amateur volunteers who use their station equipment to help civil defense organizations in times of emergency
C	Amateur volunteers who are formally enlisted to monitor the airwaves for rules violations
D	Amateur volunteers who conduct amateur licensing examinations

10. - G2E06

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

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

11. - G3A02

What effect does a Sudden Ionospheric Disturbance have on the daytime ionospheric propagation of HF radio waves?

Select	Answer
A	It disrupts signals on lower frequencies more than those on higher frequencies
B	It disrupts communications via satellite more than direct communications
C	It enhances propagation on all HF frequencies
D	None, because only areas on the night side of the Earth are affected

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

13. - G3C08

Why are HF scatter signals in the skip zone usually weak?

Select	Answer
A	Signals are scattered from the magnetosphere which is not a good reflector
B	Only a small part of the signal energy is scattered into the skip zone
C	Propagations is through ducts in F region which absorb most of the energy
D	Propagation is through ground waves which absorb most of the signal energy

14. - G4A13

What is one reason to use the attenuator function that is present on many HF transceivers?

Select	Answer
A	To reduce power consumption when operating from batteries
B	To slow down received CW signals for better copy
C	To reduce the transmitter power when driving a linear amplifier
D	To reduce signal overload due to strong incoming signals

15. - G4B06

What is an advantage of a digital voltmeter as compared to an analog voltmeter?

Select	Answer
A	Better for measuring computer circuits
B	Better precision for most uses
C	Better for RF measurements
D	Faster response

16. - G4C13

Which of the following can perform automatic notching of interfering carriers?

Select	Answer
A	A Digital Signal Processor (DSP) filter
B	Bandpass tuning
C	A noise limiter
D	Balanced mixing

17. - G4D04

What does an S meter measure?

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

18. - G4E03

Which of the following direct, fused power connections would be the best for a 100 watt HF mobile installation?

Select	Answer
A	To the battery using heavy gauge wire
B	To the alternator or generator using heavy gauge wire
C	To the alternator or generator using resistor wire
D	To the battery using resistor wire

19. - G5A03

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

Select	Answer
A	Reactance
B	Admittance
C	Conductance
D	Reluctance

20. - G5B09

What is the RMS voltage of a sine wave with a value of 17 volts peak?

Select	Answer
A	34 volts
B	24 volts
C	12 volts
D	8.5 volts

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	220 nF
D	0.22 nF

22. - G6A06

Which of the following is an advantage of using a Schottky diode in an RF switching circuit rather than a standard silicon diode?

Select	Answer
A	Higher breakdown voltage
B	Lower inductance
C	Lower capacitance
D	Longer switching times

23. - G6B07

Which of the following is an advantage of an LED indicator compared to an incandescent indicator?

Select	Answer
A	Faster response time
B	Longer life
C	All of these choices are correct
D	Lower power consumption

24. - G7A02

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

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

25. - G7B12

Which of these classes of amplifiers has the highest efficiency?

Select	Answer
A	Class A
B	Class B
C	Class AB
D	Class C

26. - G7C03

What circuit is used to process signals from the RF amplifier and local oscillator then send the result to the IF filter in a superheterodyne receiver?

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

27. - G8A11

What is the modulation envelope of an AM signal?

Select	Answer
A	Spurious signals that envelop nearby frequencies
B	The carrier frequency that contains the signal
C	The waveform created by connecting the peak values of the modulated signal
D	The bandwidth of the modulated signal

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. - G8C06

What action results from a failure to exchange information due to excessive transmission attempts when using PACTOR or WINMOR?

Select	Answer
A	The checksum overflows
B	Encoding reverts to the default character set
C	The connection is dropped
D	Packets will be routed incorrectly

30. - G9A08

If the SWR on an antenna feed line is 5 to 1, and a matching network at the transmitter end of the feed line is adjusted to 1 to 1 SWR, what is the resulting SWR on the feed line?

Select	Answer
A	Between 1 to 1 and 5 to 1 depending on the reflected power at the transmitter
B	Between 1 to 1 and 5 to 1 depending on the characteristic impedance of the line
C	5 to 1
D	1 to 1

31. - G9B08

How does the feed point impedance of a 1/2 wave dipole change as the feed point is moved from the center toward the ends?

Select	Answer
A	It is unaffected by the location of the feed point
B	It steadily increases
C	It peaks at about 1/8 wavelength from the end
D	It steadily decreases

32. - G9C04

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

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

33. - G9D05

What is an advantage of vertical stacking of horizontally polarized Yagi antennas?

Select	Answer
A	It allows simultaneous vertical and horizontal polarization
B	It allows quick selection of vertical or horizontal polarization
C	It narrows the main lobe in elevation
D	It narrows the main lobe in azimuth

34. - G0A09

What type of instrument can be used to accurately measure an RF field?

Select	Answer
A	An oscilloscope with a high-stability crystal marker generator
B	An SWR meter with a peak-reading function
C	A receiver with an S meter
D	A calibrated field strength meter with a calibrated antenna

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	Unground the base of the tower
C	Notify the electric company that a person will be working on the tower
D	All of these choices are correct