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	14305 kHz
B	14005 kHz
C	14405 kHz
D	14105 kHz

2. - G1B03

Which of the following is a purpose of a beacon station as identified in the FCC rules?

Select	Answer
A	Identifying net frequencies
B	Observation of propagation and reception
C	Automatic identification of repeaters
D	Transmission of bulletins of general interest to Amateur Radio licensees

3. - G1C08

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

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

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	There are no requirements other than being able to show a copy of the expired license
B	They must have a letter from the FCC showing they once held an amateur or commercial 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. - G1E09

What language must be used when identifying your station if you are using a language other than English in making a contact using phone emission?

Select	Answer
A	English only
B	Any language recognized by the United Nations
C	The language being used for the contact
D	English, Spanish, French, or German

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 occupies less bandwidth
C	It allows "hands free" operation
D	It provides more power output

7. - G2B06

What is a practical way to avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

Select	Answer
A	Send "QSY" on CW or if using phone, announce "the frequency is in use", then give your call and listen for a response
B	Send "QRL?" on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
C	Send the letter "V" in Morse code several times and listen for a response or say "test" several times and listen for a response
D	Listen for 2 minutes before calling CQ

8. - G2C01

Which of the following describes full break-in telegraphy (QSK)?

Select	Answer
A	An operator must activate a manual send/receive switch before and after every transmission
B	Transmitting stations can receive between code characters and elements
C	Automatic keyers are used to send Morse code instead of hand keys
D	Breaking stations send the Morse code prosign BK

9. - G2D06

How is a directional antenna pointed when making a "long-path" contact with another station?

Select	Answer
A	180 degrees from its short-path heading
B	Along the gray line
C	Toward the north
D	Toward the rising Sun

10. - G2E04

What segment of the 20-meter band is most often used for digital transmissions?

Select	Answer
A	14.000 - 14.050 MHz
B	14.275 - 14.350 MHz
C	14.150 - 14.225 MHz
D	14.070 - 14.100 MHz

11. - G3A10

What causes HF propagation conditions to vary periodically in a 28 day cycle?

Select	Answer
A	Cyclic variation in the Earth's radiation belts
B	Long term oscillations in the upper atmosphere
C	The position of the Moon in its orbit
D	The Sun's rotation on its axis

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

13. - G3C02

Where on the Earth do ionospheric layers reach their maximum height?

Select	Answer
A	Where the Sun has just set
B	Where the Sun is overhead
C	Where the Sun is rising
D	Where the Sun is on the opposite side of the Earth

14. - G4A02

What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver?

Select	Answer
A	It may be possible to reduce or eliminate interference from other signals
B	Interference from impulse noise will be eliminated
C	Accidental out of band operation can be prevented
D	More stations can be accommodated within a given signal passband

15. - G4B06

What is an advantage of a digital voltmeter as compared to an analog voltmeter?

Select	Answer
A	Better for RF measurements
B	Better for measuring computer circuits
C	Better precision for most uses
D	Faster response

16. - G4C11

Which of the following is a function of a digital signal processor?

Select	Answer
A	To provide adequate grounding
B	To increase antenna bandwidth
C	To remove noise from received signals
D	To increase antenna gain

17. - G4D04

What does an S meter measure?

Select	Answer
A	Impedance
B	Conductance
C	Transmitter power output
D	Received signal strength

18. - G4E01

What is the purpose of a capacitance hat on a mobile antenna?

Select	Answer
A	To increase the power handling capacity of a whip antenna
B	To allow automatic band changing
C	To electrically lengthen a physically short antenna
D	To allow remote tuning

19. - G5A04

Which of the following causes opposition to the flow of alternating current in a capacitor?

Select	Answer
A	Conductance
B	Admittance
C	Reluctance
D	Reactance

20. - G5B05

How many watts are dissipated when a current of 7.0 milliamperes flows through 1.25 kilohms resistance?

Select	Answer
A	Approximately 61 watts
B	Approximately 61 milliwatts
C	Approximately 11 watts
D	Approximately 11 milliwatts

21. - G5C03

Which of the following components should be added to an existing resistor to increase the resistance?

Select	Answer
A	A resistor in parallel
B	A resistor in series
C	A capacitor in series
D	A capacitor in parallel

22. - G6A10

Which element of a triode vacuum tube is used to regulate the flow of electrons between cathode and plate?

Select	Answer
A	Heater
B	Screen Grid
C	Control grid
D	Trigger electrode

23. - G6B13

Which of these connector types is commonly used for RF connections at frequencies up to 150 MHz?

Select	Answer
A	PL-259
B	DB-25
C	Octal
D	RJ-11

24. - G7A05

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

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

25. - G7B06

What is a shift register?

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

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	IF amplifier
C	Detector
D	Balanced modulator

27. - G8A01

How is an FSK signal generated?

Select	Answer
A	By changing an oscillator's frequency directly with a digital control signal
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 using a transceiver's computer data interface protocol to change frequencies

28. - G8B05

What is the approximate bandwidth of a PACTOR3 signal at maximum data rate?

Select	Answer
A	1800 Hz
B	2300 Hz
C	31.5 Hz
D	500 Hz

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	Mark and Space
D	High and Low

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

31. - G9B03

What happens to the feed point impedance of a ground plane antenna when its radials are changed from horizontal to sloping downward?

Select	Answer
A	It decreases
B	It reaches a maximum at an angle of 45 degrees
C	It increases
D	It stays the same

32. - G9C12

Which of the following is an advantage of using a gamma match for impedance matching of a Yagi antenna to 50 ohm coax feed line?

Select	Answer
A	It does not require that the elements be insulated from the boom
B	All of these choices are correct
C	It is useful for matching multiband antennas
D	It does not require any inductors or capacitors

33. - G9D01

What does the term NVIS mean as related to antennas?

Select	Answer
A	Nearly Vertical Inductance System
B	Non-Varying Impedance Smoothing
C	Non-Varying Indicated SWR
D	Near Vertical Incidence sky-wave

34. - G0A09

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

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

35. - G0B10

Which of the following is a danger from lead-tin solder?

Select	Answer
A	Lead can contaminate food if hands are not washed carefully after handling the solder
B	RF energy can convert the lead into a poisonous gas
C	Tin in the solder can "cold flow" causing shorts in the circuit
D	High voltages can cause lead-tin solder to disintegrate suddenly