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	14305 kHz
C	14005 kHz
D	14105 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 the rules of the IARU
C	All of these choices are correct
D	In conformance with Amateur Radio custom

3. - G1C04

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

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

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	The applicant must pass the current element 2 exam
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	There are no requirements other than being able to show a copy of the expired license

5. - G1E06

Which of the following applies in the event of interference between a coordinated repeater and an uncoordinated repeater?

Select	Answer
A	The licensee of the coordinated repeater has primary responsibility to resolve the interference
B	Both repeater licensees share equal responsibility to resolve the interference
C	The frequency coordinator bears primary responsibility to resolve the interference
D	The licensee of the uncoordinated repeater has primary responsibility to resolve the interference

6. - G2A04

Which mode is most commonly used for voice communications on the 17-meter and 12-meter bands?

Select	Answer
A	Double sideband
B	Upper sideband
C	Lower sideband
D	Vestigial 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. - G2C11

What does the Q signal "QRV" mean?

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

9. - G2D07

Which of the following is required by the FCC rules when operating in the 60-meter band?

Select	Answer
A	If you are using other than a dipole antenna, you must keep a record of the gain of your antenna
B	You must keep a record of the date, time, frequency, power level and stations worked
C	You must keep a record of all third party traffic
D	You must keep a record of the manufacturer of your equipment and the antenna used

10. - G2E03

What symptoms may result from other signals interfering with a PACTOR or WINMOR transmission?

Select	Answer
A	Failure to establish a connection between stations
B	Long pauses in message transmission
C	Frequent retries or timeouts
D	All of these choices are correct

11. - G3A04

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

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

12. - G3B02

Which of the following is a good indicator of the possibility of sky-wave propagation on the 6-meter band?

Select	Answer
A	Severe attenuation of signals on the 10-meter band
B	Long delayed echoes on the 10-meter band
C	Short skip sky-wave propagation on the 10-meter band
D	Long skip sky-wave propagation on the 10-meter band

13. - G3C04

What does the term "critical angle" mean as used in radio wave propagation?

Select	Answer
A	The long path azimuth of a distant station
B	The lowest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions
C	The short path azimuth of a distant station
D	The highest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions

14. - G4A08

What is the correct adjustment for the load or coupling control of a vacuum tube RF power amplifier?

Select	Answer
A	Minimum plate current without exceeding maximum allowable grid current
B	Maximum power output without exceeding maximum allowable plate current
C	Minimum SWR on the antenna
D	Highest plate voltage while minimizing grid current

15. - G4B02

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

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

16. - G4C09

How can a ground loop be avoided?

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

17. - G4D03

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

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

18. - G4E09

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

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

19. - G5A11

Which of the following describes one method of impedance matching between two AC circuits?

Select	Answer
A	Insert a circulator between the two circuits
B	Increase the power output of the first circuit
C	Insert an LC network between the two circuits
D	Reduce the power output of the first circuit

20. - G5B11

What is the ratio of peak envelope power to average power for an unmodulated carrier?

Select	Answer
A	1.00
B	0.707
C	2.00
D	1.414

21. - G5C05

If three equal value resistors in series produce 450 ohms, what is the value of each resistor?

Select	Answer
A	150 ohms
B	90 ohms
C	1500 ohms
D	175 ohms

22. - G6A05

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

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

23. - G6B03

Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?

Select	Answer
A	High power handling capability
B	Low power consumption
C	Better suited for power supply regulation
D	Better suited for RF amplification

24. - G7A09

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

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

25. - G7B04

Which of the following describes the function of a two input NOR gate?

Select	Answer
A	Output is high only when both inputs are high
B	Output is low only when both inputs are high
C	Output is low when either or both inputs are high
D	Output is high when either or both inputs are low

26. - G7C06

What should be the impedance of a low-pass filter as compared to the impedance of the transmission line into which it is inserted?

Select	Answer
A	Twice the transmission line impedance
B	Substantially higher
C	About the same
D	Substantially lower

27. - G8A09

What control is typically adjusted for proper ALC setting on an amateur single sideband transceiver?

Select	Answer
A	The RF clipping level
B	Attenuator level
C	Antenna inductance or capacitance
D	Transmit audio or microphone gain

28. - G8B04

What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?

Select	Answer
A	Mixer
B	Pre-emphasis network
C	Multiplier
D	Reactance modulator

29. - G8C06

What action results from a failure to exchange information due to excessive transmission attempts when using PACTOR or WINMOR?

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

30. - G9A13

What standing wave ratio will result when connecting a 50 ohm feed line to an antenna that has a purely resistive 300 ohm feed point impedance?

Select	Answer
A	You cannot determine SWR from impedance values
B	3:1
C	6:1
D	1.5:1

31. - G9B01

What is one disadvantage of a directly fed random-wire HF antenna?

Select	Answer
A	It must be longer than 1 wavelength
B	It is more effective on the lower HF bands than on the higher bands
C	You may experience RF burns when touching metal objects in your station
D	It produces only vertically polarized radiation

32. - G9C15

Approximately how long is each side of the reflector element of a quad antenna?

Select	Answer
A	Slightly more than 1/4 wavelength
B	Slightly less than 1/2 wavelength
C	Slightly less than 1/4 wavelength
D	Slightly more than 1/2 wavelength

33. - G9D11

Which of the following is a disadvantage of multiband antennas?

Select	Answer
A	They must be used with an antenna tuner
B	They present low impedance on all design frequencies
C	They must be fed with open wire line
D	They have poor harmonic rejection

34. - G0A04

What does "time averaging" mean in reference to RF radiation exposure?

Select	Answer
A	The total time of the exposure
B	The average time it takes RF radiation to have any long-term effect on the body
C	The total RF exposure averaged over a certain time
D	The average amount of power developed by the transmitter over a specific 24 hour period

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

Figure G7-1