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. - G1A01

On which of the following bands is a General Class license holder granted all amateur frequency privileges?

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

2. - G1B04

Which of the following must be true before amateur stations may provide communications to broadcasters for dissemination to the public?

Select	Answer
A	All of these choices are correct
B	The FCC must have declared a state of emergency
C	The communications must directly relate to the immediate safety of human life or protection of property and there must be no other means of communication reasonably available before or at the time of the event
D	The communications must be approved by a local emergency preparedness official and conducted on officially designated frequencies

3. - G1C05

Which of the following is a limitation on transmitter power on the 28 MHz band for a General Class control operator?

Select	Answer
A	100 watts PEP output
B	2000 watts PEP output
C	1000 watts PEP output
D	1500 watts PEP output

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

5. - G1E13

On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?

Select	Answer
A	On any band segment where digital operation is permitted
B	Anywhere in the 1.25-meter or shorter wavelength bands, and in specified segments of the 80-meter through 2-meter bands
C	Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands
D	Only in the non-phone Extra Class segments of the bands

6. - G2A06

Which of the following is an advantage when using single sideband as compared to other analog voice modes on the HF amateur bands?

Select	Answer
A	Less subject to interference from atmospheric static crashes
B	Less bandwidth used and greater power efficiency
C	Very high fidelity voice modulation
D	Ease of tuning on receive and immunity to impulse noise

7. - G2B08

What is the "DX window" in a voluntary band plan?

Select	Answer
A	An FCC rule that prohibits contacts between stations within the United States and possessions in that portion of the band
B	A portion of the band that should not be used for contacts between stations within the 48 contiguous United States
C	A portion of the band that has been voluntarily set aside for digital contacts only
D	An FCC rule that allows only digital contacts in that portion of the band

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	Operating full break-in
D	Listening only for a specific station or stations

9. - G2D09

What information is traditionally contained in a station log?

Select	Answer
A	Date and time of contact
B	Call sign of station contacted and the signal report given
C	All of these choices are correct
D	Band and/or frequency of the contact

10. - G2E05

What is the standard sideband used to generate a JT65 or JT9 digital signal when using AFSK in any amateur band?

Select	Answer
A	DSB
B	USB
C	SSB
D	LSB

11. - G3A03

Approximately how long does it take the increased ultraviolet and X-ray radiation from solar flares to affect radio propagation on the Earth?

Select	Answer
A	8 minutes
B	20 to 40 hours
C	1 to 2 hours
D	28 days

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

13. - G3C01

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

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

14. - G4A10

What is the purpose of an electronic keyer?

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

15. - G4B05

Why is high input impedance desirable for a voltmeter?

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

16. - G4C08

Which of the following would reduce RF interference caused by common-mode current on an audio cable?

Select	Answer
A	Adding an additional insulating jacket to the cable
B	Placing a ferrite choke around the cable
C	Adding shunt inductors to the conductors
D	Adding series capacitors to the conductors

17. - G4D05

How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?

Select	Answer
A	It is 20 times less powerful
B	It is 10 times less powerful
C	It is 20 times more powerful
D	It is 100 times more powerful

18. - G4E09

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

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

19. - G5A10

What unit is used to measure impedance?

Select	Answer
A	Watt
B	Volt
C	Ohm
D	Ampere

20. - G5B14

What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50 ohm resistive load connected to the transmitter output?

Select	Answer
A	5000 watts
B	2500 watts
C	625 watts
D	8.75 watts

21. - G5C10

What is the inductance of three 10 millihenry inductors connected in parallel?

Select	Answer
A	3.3 millihenrys
B	3.3 henrys
C	30 millihenrys
D	0.30 henrys

22. - G6A08

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

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

23. - G6B10

What two devices in an Amateur Radio station might be connected using a USB interface?

Select	Answer
A	Microphone and transceiver
B	Amplifier and antenna
C	Power supply and amplifier
D	Computer and transceiver

24. - G7A12

Which symbol in Figure G7-1 represents a multiple-winding transformer?

Select	Answer
A	Symbol 4
B	Symbol 7
C	Symbol 6
D	Symbol 1

25. - G7B09

What determines the frequency of an LC oscillator?

Select	Answer
A	The number of stages in the counter
B	The number of stages in the divider
C	The time delay of the lag circuit
D	The inductance and capacitance in the tank circuit

26. - G7C11

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

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

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

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

28. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

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

29. - G8C11

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

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

30. - G9A10

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 10 ohm impedance?

Select	Answer
A	5:1
B	1:5
C	50:1
D	2:1

31. - G9B06

Where should the radial wires of a ground-mounted vertical antenna system be placed?

Select	Answer
A	Parallel to the antenna element
B	At the center of the antenna
C	As high as possible above the ground
D	On the surface of the Earth or buried a few inches below the ground

32. - G9C13

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

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

33. - G9D06

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

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

34. - G0A06

What precaution should be taken when installing a ground-mounted antenna?

Select	Answer
A	It should be installed such that it is protected against unauthorized access
B	It should not be installed higher than you can reach
C	It should not be installed in a wet area
D	It should limited to 10 feet in height

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

Figure G7-1