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. - G1A14

In what ITU region is operation in the 7.175 to 7.300 MHz band permitted for a control operator holding an FCC issued General Class license?

Select	Answer
A	Region 3
B	Region 2
C	All three regions
D	Region 1

2. - G1B10

What is the power limit for beacon stations?

Select	Answer
A	10 watts PEP output
B	20 watts PEP output
C	100 watts PEP output
D	200 watts PEP output

3. - G1C06

Which of the following is a limitation on transmitter power on the 1.8 MHz band?

Select	Answer
A	200 watts PEP output
B	1000 watts PEP output
C	1500 watts PEP output
D	1200 watts PEP output

4. - G1D11

If a person has an expired FCC issued amateur radio license of General Class or higher, what is required before they can receive a new license?

Select	Answer
A	The applicant must pass the current element 2 exam
B	There are no requirements other than being able to show a copy of the expired license
C	They must have a letter from the FCC showing they once held an amateur or commercial license
D	The applicant must be able to produce a copy of a page from a call book published in the USA showing his or her name and address

5. - G1E01

Which of the following would disqualify a third party from participating in stating a message over an amateur station?

Select	Answer
A	The third party is a licensed amateur
B	The third party's amateur license has been revoked and not reinstated
C	The third party is speaking in a language other than English
D	The third party is not a U.S. citizen

6. - G2A03

Which of the following is most commonly used for SSB voice communications in the VHF and UHF bands?

Select	Answer
A	Lower sideband
B	Double sideband
C	Upper sideband
D	Vestigial sideband

7. - G2B10

When may the FCC restrict normal frequency operations of amateur stations participating in RACES?

Select	Answer
A	When they seize your equipment for use in disaster communications
B	When the President's War Emergency Powers have been invoked
C	Only when all amateur stations are instructed to stop transmitting
D	When they declare a temporary state of communication emergency

8. - G2C02

What should you do if a CW station sends "QRS"?

Select	Answer
A	Send slower
B	Change frequency
C	Increase your power
D	Repeat everything twice

9. - G2D06

How is a directional antenna pointed when making a "long-path" contact with another station?

Select	Answer
A	Along the gray line
B	Toward the rising Sun
C	Toward the north
D	180 degrees from its short-path heading

10. - G2E11

What is indicated on a waterfall display by one or more vertical lines adjacent to a PSK31 signal?

Select	Answer
A	Backscatter propagation
B	Insufficient modulation
C	Overmodulation
D	Long Path propagation

11. - G3A12

What does the K-index indicate?

Select	Answer
A	The short term stability of the Earth's magnetic field
B	The solar radio flux at Boulder, Colorado
C	The stability of the Sun's magnetic field
D	The relative position of sunspots on the surface of the Sun

12. - G3B06

What usually happens to radio waves with frequencies below the LUF?

Select	Answer
A	They are bent back to the Earth
B	They are completely absorbed by the ionosphere
C	They are bent and trapped in the ionosphere to circle the Earth
D	They pass through the ionosphere

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	Propagations is through ducts in F region which absorb most of the energy
C	Only a small part of the signal energy is scattered into the skip zone
D	Propagation is through ground waves which absorb most of the signal energy

14. - G4A12

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

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

15. - G4B11

Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?

Select	Answer
A	Antenna and feed line
B	All of these choices are correct
C	Receiver
D	Transmitter

16. - G4C09

How can a ground loop be avoided?

Select	Answer
A	Connect all ground conductors to a single point
B	Connect all ground conductors in series
C	Avoid using lock washers and star washers when making ground connections
D	Connect the AC neutral conductor to the ground wire

17. - G4D03

Which of the following can be the result of an incorrectly adjusted speech processor?

Select	Answer
A	Distorted speech
B	Splatter
C	All of these choices are correct
D	Excessive background pickup

18. - G4E02

What is the purpose of a corona ball on a HF mobile antenna?

Select	Answer
A	To reduce the chance of damage if the antenna should strike an object
B	To increase the "Q" of the antenna
C	To narrow the operating bandwidth of the antenna
D	To reduce high voltage discharge from the tip of the antenna

19. - G5A04

Which of the following causes opposition to the flow of alternating current in a capacitor?

Select	Answer
A	Conductance
B	Reluctance
C	Admittance
D	Reactance

20. - G5B06

What is the output PEP from a transmitter if an oscilloscope measures 200 volts peak-to-peak across a 50 ohm dummy load connected to the transmitter output?

Select	Answer
A	1.4 watts
B	100 watts
C	400 watts
D	353.5 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	24.4 to 1
B	300 to 1
C	150 to 1
D	12.2 to 1

22. - G6A07

What are the stable operating points for a bipolar transistor used as a switch in a logic circuit?

Select	Answer
A	Its enhancement and depletion modes
B	Its peak and valley current points
C	Its saturation and cutoff regions
D	Its active region (between the cutoff and saturation regions)

23. - G6B07

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

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

24. - G7A08

Which of the following is an advantage of a switchmode power supply as compared to a linear power supply?

Select	Answer
A	High frequency operation allows the use of smaller components
B	Faster switching time makes higher output voltage possible
C	All of these choices are correct
D	Fewer circuit components are required

25. - G7B12

Which of these classes of amplifiers has the highest efficiency?

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

26. - G7C05

Which of the following is an advantage of a transceiver controlled by a direct digital synthesizer (DDS)?

Select	Answer
A	Relatively high power output
B	Variable frequency with the stability of a crystal oscillator
C	Wide tuning range and no need for band switching
D	Relatively low power consumption

27. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Frequency drift
B	Insufficient bandwidth
C	Excessive bandwidth
D	Insufficient audio

28. - G8B06

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

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

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

30. - G9A05

How does the attenuation of coaxial cable change as the frequency of the signal it is carrying increases?

Select	Answer
A	Attenuation is independent of frequency
B	Attenuation reaches a maximum at approximately 18 MHz
C	Attenuation decreases
D	Attenuation increases

31. - G9B02

Which of the following is a common way to adjust the feed point impedance of a quarter wave ground plane vertical antenna to be approximately 50 ohms?

Select	Answer
A	Shorten the radials
B	Slope the radials upward
C	Lengthen the radials
D	Slope the radials downward

32. - G9C02

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

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

33. - G9D10

Which of the following describes a Beverage antenna?

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

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

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	They must be bonded to all buried water and gas lines
D	Lightning grounds must be connected to all ungrounded wiring