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. - G1A07

Which of the following frequencies is within the General Class portion of the 20-meter phone band?

Select	Answer
A	14405 kHz
B	14005 kHz
C	14105 kHz
D	14305 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	In conformance with good engineering and good amateur practice
B	In conformance with Amateur Radio custom
C	In conformance with the rules of the IARU
D	All of these choices are correct

3. - G1C07

What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20-meter band?

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

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	They must have a letter from the FCC showing they once held an amateur or commercial license
B	There are no requirements other than being able to show a copy of the expired license
C	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
D	The applicant must pass the current element 2 exam

5. - G1E02

When may a 10-meter repeater retransmit the 2-meter signal from a station having a Technician Class control operator?

Select	Answer
A	Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission
B	Only if the 10-meter repeater control operator holds at least a General Class license
C	Under no circumstances
D	Only during an FCC declared general state of communications emergency

6. - G2A01

Which sideband is most commonly used for voice communications on frequencies of 14 MHz or higher?

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

7. - G2B03

If propagation changes during your contact and you notice increasing interference from other activity on the same frequency, what should you do?

Select	Answer
A	Tell the interfering stations to change frequency
B	Report the interference to your local Amateur Auxiliary Coordinator
C	Increase power to overcome interference
D	As a common courtesy, move your contact to another frequency

8. - G2C03

What does it mean when a CW operator sends "KN" at the end of a transmission?

Select	Answer
A	Listening for novice stations
B	Closing station now
C	Listening only for a specific station or stations
D	Operating full break-in

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	180 degrees from its short-path heading
C	Toward the rising Sun
D	Toward the north

10. - G2E13

Which communication system sometimes uses the Internet to transfer messages?

Select	Answer
A	Skywarn
B	Winlink
C	ARES
D	RTTY

11. - G3A15

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

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

12. - G3B08

What does MUF stand for?

Select	Answer
A	The Maximum Usable Frequency during a 24 hour period
B	The Minimum Usable Frequency during a 24 hour period
C	The Maximum Usable Frequency for communications between two points
D	The Minimum Usable Frequency for communications between two points

13. - G3C12

Which ionospheric layer is the most absorbent of long skip signals during daylight hours on frequencies below 10 MHz?

Select	Answer
A	The E layer
B	The F2 layer
C	The D layer
D	The F1 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	When using digital modes, too much ALC activity can cause the transmitter to overheat
B	Improper action of ALC distorts the signal and can cause spurious emissions
C	All of these choices are correct
D	ALC will invert the modulation of the AFSK mode

15. - G4B09

Which of the following can be determined with a field strength meter?

Select	Answer
A	The presence and amount of amplitude distortion of a transmitter
B	The radiation pattern of an antenna
C	The presence and amount of phase distortion of a transmitter
D	The radiation resistance of an antenna

16. - G4C04

What is the effect on an audio device or telephone system if there is interference from a nearby CW transmitter?

Select	Answer
A	Severely distorted audio
B	On-and-off humming or clicking
C	A chirpy CW signal
D	A CW signal at a nearly pure audio frequency

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

18. - G4E05

Which of the following most limits the effectiveness of an HF mobile transceiver operating in the 75-meter band?

Select	Answer
A	"Picket Fencing" signal variation
B	The antenna system
C	FCC rules limiting mobile output power on the 75-meter band
D	The wire gauge of the DC power line to the transceiver

19. - G5A03

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

Select	Answer
A	Conductance
B	Admittance
C	Reluctance
D	Reactance

20. - G5B12

What would be the RMS voltage across a 50 ohm dummy load dissipating 1200 watts?

Select	Answer
A	173 volts
B	245 volts
C	692 volts
D	346 volts

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	10000 ohms
B	5.9 ohms
C	80 ohms
D	0.17 ohms

22. - G6A17

Which of the following is a reason not to use wire-wound resistors in an RF circuit?

Select	Answer
A	The resistor's inductance could make circuit performance unpredictable
B	The resistor could overheat
C	The resistor's tolerance value would not be adequate for such a circuit
D	The resistor's internal capacitance would detune the circuit

23. - G6B02

What is meant by the term MMIC?

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

24. - G7A06

What portion of the AC cycle is converted to DC by a full-wave rectifier?

Select	Answer
A	270 degrees
B	360 degrees
C	180 degrees
D	90 degrees

25. - G7B14

Which of the following describes a linear amplifier?

Select	Answer
A	Any RF power amplifier used in conjunction with an amateur transceiver
B	A Class C high efficiency amplifier
C	An amplifier used as a frequency multiplier
D	An amplifier in which the output preserves the input waveform

26. - G7C11

What is meant by the term "software defined radio" (SDR)?

Select	Answer
A	A computer model that can simulate performance of a radio to aid in the design process
B	A radio that provides computer interface for automatic logging of band and frequency
C	A radio in which most major signal processing functions are performed by software
D	A radio that uses crystal filters designed using software

27. - G8A02

What is the name of the process that changes the phase angle of an RF wave to convey information?

Select	Answer
A	Angle convolution
B	Radian inversion
C	Phase convolution
D	Phase modulation

28. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

Select	Answer
A	Higher symbol rates require wider bandwidth
B	Lower symbol rates require wider bandwidth
C	Symbol rate and bandwidth are not related
D	Bandwidth is always half the symbol rate

29. - G8C11

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

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

30. - G9A15

What is the effect of transmission line loss on SWR measured at the input to the line?

Select	Answer
A	The higher the transmission line loss, the more the SWR will read artificially high
B	The higher the transmission line loss, the more accurate the SWR measurement will be
C	The higher the transmission line loss, the more the SWR will read artificially low
D	Transmission line loss does not affect the SWR measurement

31. - G9B07

How does the feed point impedance of a 1/2 wave dipole antenna change as the antenna is lowered below 1/4 wave above ground?

Select	Answer
A	It peaks at about 1/8 wavelength above ground
B	It is unaffected by the height above ground
C	It steadily decreases
D	It steadily increases

32. - G9C18

What happens when the feed point of a quad antenna of any shape is moved from the midpoint of the top or bottom to the midpoint of either side?

Select	Answer
A	There is no change in polarization
B	The polarization of the radiated signal changes from vertical to horizontal
C	The radiated signal becomes circularly polarized
D	The polarization of the radiated signal changes from horizontal to vertical

33. - G9D06

Which of the following is an advantage of a log periodic antenna?

Select	Answer
A	Wide bandwidth
B	Higher gain per element than a Yagi antenna
C	Harmonic suppression
D	Polarization diversity

34. - G0A09

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

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

35. - G0B05

Which of the following conditions will cause a Ground Fault Circuit Interrupter (GFCI) to disconnect the 120 or 240 Volt AC line power to a device?

Select	Answer
A	Overvoltage on the voltage-carrying wires
B	Current flowing from one or more of the voltage-carrying wires directly to ground
C	All of these choices are correct
D	Current flowing from one or more of the voltage-carrying wires to the neutral wire