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. - G1A02

On which of the following bands is phone operation prohibited?

Select	Answer
A	17 meters
B	12 meters
C	30 meters
D	160 meters

2. - G1B08

When choosing a transmitting frequency, what should you do to comply with good amateur practice?

Select	Answer
A	Monitor the frequency before transmitting
B	All of these choices are correct
C	Insure that the frequency and mode selected are within your license class privileges
D	Follow generally accepted band plans agreed to by the Amateur Radio community

3. - G1C10

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 10-meter band?

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

4. - G1D01

Who may receive credit for the elements represented by an expired amateur radio license?

Select	Answer
A	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license
B	Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC
C	Anyone who held an FCC issued amateur radio license that has been expired for not less than 5 years and not more than 15 years
D	Any person who can demonstrate that they once held an FCC issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC

5. - G1E04

Which of the following conditions require a licensed Amateur Radio operator to take specific steps to avoid harmful interference to other users or facilities?

Select	Answer
A	All of these choices are correct
B	When operating within one mile of an FCC Monitoring Station
C	When using a band where the Amateur Service is secondary
D	When a station is transmitting spread spectrum emissions

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

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	Increase power to overcome interference
C	As a common courtesy, move your contact to another frequency
D	Report the interference to your local Amateur Auxiliary Coordinator

8. - G2C02

What should you do if a CW station sends "QRS"?

Select	Answer
A	Send slower
B	Increase your power
C	Change frequency
D	Repeat everything twice

9. - G2D04

Which of the following describes an azimuthal projection map?

Select	Answer
A	A map that shows the angle at which an amateur satellite crosses the equator
B	A map that shows true bearings and distances from a particular location
C	A map that shows accurate land masses
D	A map that shows the number of degrees longitude that an amateur satellite appears to move westward at the equator with each orbit

10. - G2E04

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

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

11. - G3A05

What is the solar flux index?

Select	Answer
A	A measure of solar radiation at 10.7 centimeters wavelength
B	A measure of the highest frequency that is useful for ionospheric propagation between two points on the Earth
C	A count of sunspots which is adjusted for solar emissions
D	Another name for the American sunspot number

12. - G3B03

Which of the following applies when selecting a frequency for lowest attenuation when transmitting on HF?

Select	Answer
A	Select a frequency just above the critical frequency
B	Select a frequency just above the LUF
C	Select a frequency just below the MUF
D	Select a frequency just below the critical frequency

13. - G3C10

Which of the following might be an indication that signals heard on the HF bands are being received via scatter propagation?

Select	Answer
A	The communication is during a sunspot maximum
B	The signal is heard on a frequency below the Maximum Usable Frequency
C	The communication is during a sudden ionospheric disturbance
D	The signal is heard on a frequency above the Maximum Usable Frequency

14. - G4A12

Which of the following is a common use for the dual VFO feature on a transceiver?

Select	Answer
A	To facilitate computer interface
B	To allow transmitting on two frequencies at once
C	To permit monitoring of two different frequencies
D	To permit full duplex operation, that is transmitting and receiving at the same time

15. - G4B01

What item of test equipment contains horizontal and vertical channel amplifiers?

Select	Answer
A	An ohmmeter
B	A signal generator
C	An oscilloscope
D	An ammeter

16. - G4C13

Which of the following can perform automatic notching of interfering carriers?

Select	Answer
A	A Digital Signal Processor (DSP) filter
B	Bandpass tuning
C	A noise limiter
D	Balanced mixing

17. - G4D01

What is the purpose of a speech processor as used in a modern transceiver?

Select	Answer
A	Prevent distortion of voice signals
B	Increase the intelligibility of transmitted phone signals during poor conditions
C	Decrease high-frequency voice output to prevent out of band operation
D	Increase transmitter bass response for more natural sounding SSB signals

18. - G4E03

Which of the following direct, fused power connections would be the best for a 100 watt HF mobile installation?

Select	Answer
A	To the battery using resistor wire
B	To the alternator or generator using heavy gauge wire
C	To the alternator or generator using resistor wire
D	To the battery using heavy gauge wire

19. - G5A13

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

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

20. - G5B10

What percentage of power loss would result from a transmission line loss of 1 dB?

Select	Answer
A	20.5 percent
B	10.9 percent
C	12.2 percent
D	25.9 percent

21. - G5C03

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

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

22. - G6A07

What are the stable operating points for a bipolar transistor used as a switch in a logic circuit?

Select	Answer
A	Its enhancement and depletion modes
B	Its active region (between the cutoff and saturation regions)
C	Its peak and valley current points
D	Its saturation and cutoff regions

23. - G6B12

Which of the following connectors would be a good choice for a serial data port?

Select	Answer
A	DE-9
B	Type N
C	Type SMA
D	PL-259

24. - G7A12

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

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

25. - G7B01

Complex digital circuitry can often be replaced by what type of integrated circuit?

Select	Answer
A	Phase detector
B	Charge-coupled device
C	Window comparator
D	Microcontroller

26. - G7C07

What is the simplest combination of stages that implement a superheterodyne receiver?

Select	Answer
A	HF oscillator, prescaler, audio amplifier
B	RF amplifier, mixer, IF discriminator
C	HF oscillator, mixer, detector
D	RF amplifier, detector, audio amplifier

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. - G8B05

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

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

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	2.5:1
B	1.25:1
C	You cannot determine SWR from impedance values
D	2:1

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. - G9C03

Which statement about a three-element, single-band Yagi antenna is true?

Select	Answer
A	The driven element is the longest element
B	The director is normally the shortest element
C	Low feed point impedance increases bandwidth
D	The reflector is normally the shortest element

33. - G9D11

Which of the following is a disadvantage of multiband antennas?

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

34. - G0A10

What is one thing that can be done if evaluation shows that a neighbor might receive more than the allowable limit of RF exposure from the main lobe of a directional antenna?

Select	Answer
A	Post a warning sign that is clearly visible to the neighbor
B	Use an antenna with a higher front-to-back ratio
C	Change to a non-polarized antenna with higher gain
D	Take precautions to ensure that the antenna cannot be pointed in their direction

35. - G0B04

Which of the following is a primary reason for not placing a gasoline-fueled generator inside an occupied area?

Select	Answer
A	Danger of engine over torque
B	Lack of nitrogen for adequate combustion
C	Danger of carbon monoxide poisoning
D	Lack of oxygen for adequate combustion

Figure G7-1