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. - G1A08

Which of the following frequencies is within the General Class portion of the 80-meter band?

Select	Answer
A	3560 kHz
B	3650 kHz
C	2560 kHz
D	1855 kHz

2. - G1B11

How does the FCC require an amateur station to be operated in all respects not specifically covered by the Part 97 rules?

Select	Answer
A	All of these choices are correct
B	In conformance with good engineering and good amateur practice
C	In conformance with the rules of the IARU
D	In conformance with Amateur Radio custom

3. - G1C03

What is the maximum bandwidth permitted by FCC rules for Amateur Radio stations transmitting on USB frequencies in the 60-meter band?

Select	Answer
A	3 kHz
B	2.8 kHz
C	1.8 kHz
D	5.6 kHz

4. - G1D06

When must you add the special identifier "AG" after your call sign if you are a Technician Class licensee and have a CSCE for General Class operator privileges, but the FCC has not yet posted your upgrade on its website ?

Select	Answer
A	Whenever you operate on any amateur frequency
B	Whenever you operate using Technician frequency privileges
C	Whenever you operate using General Class frequency privileges
D	A special identifier is not required as long as your General Class license application has been filed with the FCC

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 under automatic control
C	When messages are not encrypted
D	When messages are encrypted

6. - G2A10

Which of the following statements is true of voice VOX operation versus PTT operation?

Select	Answer
A	The received signal is more natural sounding
B	It allows "hands free" operation
C	It provides more power output
D	It occupies less bandwidth

7. - G2B01

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

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

8. - G2C09

What does the Q signal "QSL" mean?

Select	Answer
A	Send slower
B	We have already confirmed by card
C	I acknowledge receipt
D	We have worked before

9. - G2D05

When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?

Select	Answer
A	Only when the foreign country has a formal third party agreement filed with the FCC
B	Only when the foreign country is a member of the International Amateur Radio Union
C	When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications
D	When the contact is with amateurs in any country as long as the communication is conducted in English

10. - G2E11

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

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

11. - G3A06

What is a geomagnetic storm?

Select	Answer
A	A thunderstorm which affects radio propagation
B	A temporary disturbance in the Earth's magnetosphere
C	A sudden drop in the solar flux index
D	Ripples in the ionosphere

12. - G3B01

How might a sky-wave signal sound if it arrives at your receiver by both short path and long path propagation?

Select	Answer
A	Signal strength increased by 3 dB
B	A well-defined echo might be heard
C	Periodic fading approximately every 10 seconds
D	The signal might be cancelled causing severe attenuation

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 does not absorb radio waves as much as other ionospheric regions
C	Because it is the highest ionospheric region
D	Because it is the densest ionospheric layer

14. - G4A14

What is likely to happen if a transceiver's ALC system is not set properly when transmitting AFSK signals with the radio using single sideband mode?

Select	Answer
A	ALC will invert the modulation of the AFSK mode
B	When using digital modes, too much ALC activity can cause the transmitter to overheat
C	All of these choices are correct
D	Improper action of ALC distorts the signal and can cause spurious emissions

15. - G4B02

Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

Select	Answer
A	Input impedance is much lower
B	An oscilloscope uses less power
C	Complex waveforms can be measured
D	Complex impedances can be easily measured

16. - G4C09

How can a ground loop be avoided?

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

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 2 times
B	Approximately 1.5 times
C	Approximately 4 times
D	Approximately 8 times

18. - G4E08

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

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

19. - G5A01

What is impedance?

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

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	400 watts
B	1.4 watts
C	353.5 watts
D	100 watts

21. - G5C15

What is the total resistance of a 10 ohm, a 20 ohm, and a 50 ohm resistor connected in parallel?

Select	Answer
A	0.17 ohms
B	10000 ohms
C	5.9 ohms
D	80 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 field effect transistor
B	A tunnel diode
C	A bipolar transistor
D	A varistor

23. - G6B16

Which of the following describes a type N connector?

Select	Answer
A	A small bayonet connector used for data circuits
B	An audio connector used in surround-sound installations
C	A threaded connector used for hydraulic systems
D	A moisture-resistant RF connector useful to 10 GHz

24. - G7A02

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

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

25. - G7B05

How many states does a 3-bit binary counter have?

Select	Answer
A	16
B	3
C	8
D	6

26. - G7C09

Which of the following is needed for a Digital Signal Processor IF filter?

Select	Answer
A	An analog to digital converter
B	A digital processor chip
C	A digital to analog converter
D	All of the these choices are correct

27. - G8A06

What is one advantage of carrier suppression in a single sideband phone transmission versus full carrier amplitude modulation?

Select	Answer
A	Greater modulation percentage is obtainable with lower distortion
B	Simpler receiving equipment can be used
C	Audio fidelity is improved
D	Available transmitter power can be used more effectively

28. - G8B08

Why is it important to know the duty cycle of the mode you are using when transmitting?

Select	Answer
A	To aid in tuning your transmitter
B	To allow time for the other station to break in during a transmission
C	All of these choices are correct
D	Some modes have high duty cycles which could exceed the transmitter's average power rating.

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

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	1:2
B	4:1
C	1:4
D	2:1

31. - G9B09

Which of the following is an advantage of a horizontally polarized as compared to a vertically polarized HF antenna?

Select	Answer
A	Shorter Radials
B	Lower radiation resistance
C	Lower feed point impedance
D	Lower ground reflection losses

32. - G9C11

What is the purpose of a gamma match used with Yagi antennas?

Select	Answer
A	To match the relatively low feed point impedance to 50 ohms
B	To match the relatively high feed point impedance to 50 ohms
C	To increase the main lobe gain
D	To increase the front-to-back ratio

33. - G9D07

Which of the following describes a log periodic antenna?

Select	Answer
A	SWR varies periodically as a function of boom length
B	Impedance varies periodically as a function of frequency
C	Gain varies logarithmically as a function of frequency
D	Length and spacing of the elements increase logarithmically from one end of the boom to the other

34. - G0A01

What is one way that RF energy can affect human body tissue?

Select	Answer
A	It causes radiation poisoning
B	It heats body tissue
C	It causes the blood count to reach a dangerously low level
D	It cools body tissue

35. - G0B13

What must you do when powering your house from an emergency generator?

Select	Answer
A	Insure that the generator is not grounded
B	Disconnect the incoming utility power feed
C	Insure that all lightning grounds are disconnected
D	All of these choices are correct