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

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 Amateur Radio custom
D	In conformance with the rules of the IARU

3. - G1C04

Which of the following limitations apply to transmitter power on every amateur band?

Select	Answer
A	Power must be limited to 200 watts when transmitting between 14.100 MHz and 14.150 MHz
B	Only the minimum power necessary to carry out the desired communications should be used
C	Power should be limited as necessary to avoid interference to another radio service on the frequency
D	Effective radiated power cannot exceed 1500 watts

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

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

6. - G2A09

Why do most amateur stations use lower sideband on the 160-meter, 75-meter and 40-meter bands?

Select	Answer
A	Lower sideband is more efficient than upper sideband at these frequencies
B	Lower sideband is the only sideband legal on these frequency bands
C	Because it is fully compatible with an AM detector
D	Current amateur practice is to use lower sideband on these frequency bands

7. - G2B04

When selecting a CW transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	150 to 500 Hz
B	1 to 3 kHz
C	5 to 50 Hz
D	3 to 6 kHz

8. - G2C11

What does the Q signal "QRV" mean?

Select	Answer
A	I am ready to receive messages
B	There is interference on the frequency
C	You are sending too fast
D	I am quitting for the day

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	When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications
C	When the contact is with amateurs in any country as long as the communication is conducted in English
D	Only when the foreign country is a member of the International Amateur Radio Union

10. - G2E08

In what segment of the 20-meter band are most PSK31 operations commonly found?

Select	Answer
A	At the bottom of the slow-scan TV segment, near 14.230 MHz
B	In the middle of the CW segment, near 14.100 MHz
C	Below the RTTY segment, near 14.070 MHz
D	At the top of the SSB phone segment, near 14.325 MHz

11. - G3A04

Which of the following are least reliable for long distance communications during periods of low solar activity?

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

12. - G3B05

What usually happens to radio waves with frequencies below the MUF and above the LUF when they are sent into the ionosphere?

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

13. - G3C01

Which ionospheric layer is closest to the surface of the Earth?

Select	Answer
A	The F1 layer
B	The E layer
C	The D layer
D	The F2 layer

14. - G4A15

Which of the following can be a symptom of transmitted RF being picked up by an audio cable carrying AFSK data signals between a computer and a transceiver?

Select	Answer
A	The transmitter signal is distorted
B	Frequent connection timeouts
C	The VOX circuit does not un-key the transmitter
D	All of these choices are correct

15. - G4B05

Why is high input impedance desirable for a voltmeter?

Select	Answer
A	It decreases battery consumption in the meter
B	It improves the frequency response
C	It decreases the loading on circuits being measured
D	It improves the resolution of the readings

16. - G4C12

Which of the following is an advantage of a receiver DSP IF filter as compared to an analog filter?

Select	Answer
A	Mixing products are greatly reduced
B	Fewer digital components are required
C	The DSP filter is much more effective at VHF frequencies
D	A wide range of filter bandwidths and shapes can be created

17. - G4D06

Where is an S meter found?

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

18. - G4E04

Why is it best NOT to draw the DC power for a 100 watt HF transceiver from a vehicle's auxiliary power socket?

Select	Answer
A	The socket's wiring may be inadequate for the current drawn by the transceiver
B	Drawing more than 50 watts from this socket could cause the engine to overheat
C	The DC polarity of the socket is reversed from the polarity of modern HF transceivers
D	The socket is not wired with an RF-shielded power cable

19. - G5A13

Which of the following devices can be used for impedance matching at radio frequencies?

Select	Answer
A	A Pi-network
B	All of these choices are correct
C	A transformer
D	A length of transmission line

20. - G5B09

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

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

21. - G5C11

What is the inductance of a 20 millihenry inductor connected in series with a 50 millihenry inductor?

Select	Answer
A	70 millihenrys
B	1000 millihenrys
C	0.07 millihenrys
D	14.3 millihenrys

22. - G6A05

What is the approximate junction threshold voltage of a conventional silicon diode?

Select	Answer
A	1.0 volts
B	0.3 volts
C	0.1 volt
D	0.7 volts

23. - G6B01

Which of the following is an analog integrated circuit?

Select	Answer
A	NAND Gate
B	Linear voltage regulator
C	Microprocessor
D	Frequency Counter

24. - G7A09

Which symbol in figure G7-1 represents a field effect transistor?

Select	Answer
A	Symbol 5
B	Symbol 1
C	Symbol 2
D	Symbol 4

25. - G7B05

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

Select	Answer
A	6
B	3
C	16
D	8

26. - G7C02

Which circuit is used to combine signals from the carrier oscillator and speech amplifier then send the result to the filter in some single sideband phone transmitters?

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

27. - G8A01

How is an FSK signal generated?

Select	Answer
A	By using a transceiver's computer data interface protocol to change frequencies
B	By keying an FM transmitter with a sub-audible tone
C	By reconfiguring the CW keying input to act as a tone generator
D	By changing an oscillator's frequency directly with a digital control signal

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	VFO
B	Discriminator
C	BFO
D	Mixer

29. - G8C11

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

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

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	2.5:1
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	Lower ground reflection losses
B	Lower feed point impedance
C	Shorter Radials
D	Lower radiation resistance

32. - G9C17

Approximately how long is each leg of a symmetrical delta-loop antenna?

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

33. - G9D09

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

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

34. - G0A07

What effect does transmitter duty cycle have when evaluating RF exposure?

Select	Answer
A	Low duty cycle transmitters are exempt from RF exposure evaluation requirements
B	A higher transmitter duty cycle permits greater short-term exposure levels
C	A lower transmitter duty cycle permits greater short-term exposure levels
D	High duty cycle transmitters are exempt from RF exposure requirements

35. - G0B15

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

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

Figure G7-1