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	All three regions
B	Region 2
C	Region 1
D	Region 3

2. - G1B01

What is the maximum height above ground to which an antenna structure may be erected without requiring notification to the FAA and registration with the FCC, provided it is not at or near a public use airport?

Select	Answer
A	200 feet
B	300 feet
C	100 feet
D	50 feet

3. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

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

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

5. - G1E08

Which of the following is a requirement for a non-licensed person to communicate with a foreign Amateur Radio station from a station with an FCC-granted license at which an FCC licensed control operator is present?

Select	Answer
A	Information must be exchanged in English
B	The foreign amateur station must be in a country with which the United States has a third party agreement
C	All of these choices are correct
D	The control operator must have at least a General Class license

6. - G2A05

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

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

7. - G2B12

When is an amateur station allowed to use any means at its disposal to assist another station in distress?

Select	Answer
A	At any time when transmitting in an organized net
B	Only when transmitting in RACES
C	Only on authorized HF frequencies
D	At any time during an actual emergency

8. - G2C05

What is the best speed to use when answering a CQ in Morse code?

Select	Answer
A	At the standard calling speed of 5 wpm
B	A slow speed until contact is established
C	The fastest speed at which you are comfortable copying
D	The speed at which the CQ was sent

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 are formally enlisted to monitor the airwaves for rules violations
C	Amateur volunteers who use their station equipment to help civil defense organizations in times of emergency
D	Amateur volunteers who conduct amateur licensing examinations

10. - G2E12

Which of the following describes a waterfall display?

Select	Answer
A	Frequency is horizontal, signal strength is intensity, time is vertical
B	Frequency is vertical, signal strength is horizontal, time is intensity
C	Frequency is vertical, signal strength is intensity, time is horizontal
D	Frequency is horizontal, signal strength is vertical, time is intensity

11. - G3A15

How long does it take charged particles from coronal mass ejections to affect radio propagation on the Earth?

Select	Answer
A	4 to 8 minutes
B	14 days
C	20 to 40 hours
D	28 days

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

13. - G3C06

What is a characteristic of HF scatter signals?

Select	Answer
A	They have very large swings in signal strength
B	All of these choices are correct
C	They have high intelligibility
D	They have a wavering sound

14. - G4A10

What is the purpose of an electronic keyer?

Select	Answer
A	VOX operation
B	Computer interface for PSK and RTTY operation
C	Automatic transmit/receive switching
D	Automatic generation of strings of dots and dashes for CW operation

15. - G4B03

Which of the following is the best instrument to use when checking the keying waveform of a CW transmitter?

Select	Answer
A	An oscilloscope
B	A wavemeter
C	A field strength meter
D	A sidetone monitor

16. - G4C05

What might be the problem if you receive an RF burn when touching your equipment while transmitting on an HF band, assuming the equipment is connected to a ground rod?

Select	Answer
A	Insulated wire has been used for the ground wire
B	The ground rod is resonant
C	Flat braid rather than round wire has been used for the ground wire
D	The ground wire has high impedance on that frequency

17. - G4D06

Where is an S meter found?

Select	Answer
A	In an SWR bridge
B	In a transmitter
C	In a conductance bridge
D	In a receiver

18. - G4E09

What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?

Select	Answer
A	0.2 VDC
B	0.02 VDC
C	1.38 VDC
D	0.5 VDC

19. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Ohm
B	Farad
C	Ampere
D	Siemens

20. - G5B13

What is the output PEP of an unmodulated carrier if an average reading wattmeter connected to the transmitter output indicates 1060 watts?

Select	Answer
A	1060 watts
B	1500 watts
C	530 watts
D	2120 watts

21. - G5C18

What is the value in microfarads of a 4700 nanofarad (nF) capacitor?

Select	Answer
A	0.47 microfarads
B	47 microfarads
C	4.7 microfarads
D	47,000 microfarads

22. - G6A08

Why must the cases of some large power transistors be insulated from ground?

Select	Answer
A	To avoid shorting the collector or drain voltage to ground
B	To improve the power dissipation capability
C	To increase the beta of the transistor
D	To reduce stray capacitance

23. - G6B02

What is meant by the term MMIC?

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

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	Fewer circuit components are required
C	Faster switching time makes higher output voltage possible
D	All of these choices are correct

25. - G7B06

What is a shift register?

Select	Answer
A	A digital mixer
B	An array of operational amplifiers used for tri-state arithmetic operations
C	A clocked array of circuits that passes data in steps along the array
D	An analog mixer

26. - G7C05

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

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

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	Audio fidelity is improved
C	Available transmitter power can be used more effectively
D	Simpler receiving equipment can be used

28. - G8B01

What receiver stage combines a 14.250 MHz input signal with a 13.795 MHz oscillator signal to produce a 455 kHz intermediate frequency (IF) signal?

Select	Answer
A	Discriminator
B	Mixer
C	BFO
D	VFO

29. - G8C02

How many data bits are sent in a single PSK31 character?

Select	Answer
A	5
B	8
C	7
D	The number varies

30. - G9A12

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 25 ohm impedance?

Select	Answer
A	You cannot determine SWR from impedance values
B	1.25:1
C	2:1
D	2.5:1

31. - G9B05

How does antenna height affect the horizontal (azimuthal) radiation pattern of a horizontal dipole HF antenna?

Select	Answer
A	If the antenna is less than 1/2 wavelength high, radiation off the ends of the wire is eliminated
B	Antenna height has no effect on the pattern
C	If the antenna is less than 1/2 wavelength high, the azimuthal pattern is almost omnidirectional
D	If the antenna is too high, the pattern becomes unpredictable

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

33. - G9D09

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

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

34. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations when transmitter power exceeds levels specified in FCC Part 97.13?

Select	Answer
A	Post a copy of OET Bulletin 65 in the station
B	All of these choices are correct
C	Post a copy of FCC Part 97.13 in the station
D	Perform a routine RF exposure evaluation

35. - G0B15

Which of the following is true of an emergency generator installation?

Select	Answer
A	Fuel should be stored near the generator for rapid refueling in case of an emergency
B	All of these choices are correct
C	The generator should be located in a well-ventilated area
D	The generator must be insulated from ground