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. - G1A08

Which of the following frequencies is within the General Class portion of the 80-meter band?

Select	Answer
A	3560 kHz
B	1855 kHz
C	2560 kHz
D	3650 kHz

2. - G1B12

Who or what determines "good engineering and good amateur practice" as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

Select	Answer
A	The FCC
B	The IEEE
C	The ITU
D	The Control Operator

3. - G1C01

What is the maximum transmitting power an amateur station may use on 10.140 MHz?

Select	Answer
A	2000 watts PEP output
B	1500 watts PEP output
C	1000 watts PEP output
D	200 watts PEP output

4. - G1D02

What license examinations may you administer when you are an accredited VE holding a General Class operator license?

Select	Answer
A	General only
B	Extra, General and Technician
C	General and Technician
D	Technician only

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

6. - G2A03

Which of the following is most commonly used for SSB voice communications in the VHF and UHF bands?

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

7. - G2B11

What frequency should be used to send a distress call?

Select	Answer
A	Only frequencies used by police, fire or emergency medical services
B	Only frequencies that are within your operating privileges
C	Only frequencies authorized for RACES or ARES stations
D	Whichever frequency has the best chance of communicating the distress message

8. - G2C11

What does the Q signal "QRV" mean?

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

9. - G2D08

What is a reason why many amateurs keep a station log?

Select	Answer
A	The ITU requires a log of all international third party traffic
B	The log provides evidence of operation needed to renew a license without retest
C	The ITU requires a log of all international contacts
D	To help with a reply if the FCC requests information

10. - G2E03

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

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

11. - G3A02

What effect does a Sudden Ionospheric Disturbance have on the daytime ionospheric propagation of HF radio waves?

Select	Answer
A	It disrupts signals on lower frequencies more than those on higher frequencies
B	It disrupts communications via satellite more than direct communications
C	None, because only areas on the night side of the Earth are affected
D	It enhances propagation on all HF frequencies

12. - G3B01

How might a sky-wave signal sound if it arrives at your receiver by both short path and long path propagation?

Select	Answer
A	Signal strength increased by 3 dB
B	A well-defined echo might be heard
C	Periodic fading approximately every 10 seconds
D	The signal might be cancelled causing severe attenuation

13. - G3C07

What makes HF scatter signals often sound distorted?

Select	Answer
A	The ionospheric layer involved is unstable
B	Ground waves are absorbing much of the signal
C	The E-region is not present
D	Energy is scattered into the skip zone through several different radio wave paths

14. - G4A13

What is one reason to use the attenuator function that is present on many HF transceivers?

Select	Answer
A	To reduce power consumption when operating from batteries
B	To reduce signal overload due to strong incoming signals
C	To reduce the transmitter power when driving a linear amplifier
D	To slow down received CW signals for better copy

15. - G4B15

What type of transmitter performance does a two-tone test analyze?

Select	Answer
A	Linearity
B	Percentage of suppression of carrier and undesired sideband for SSB
C	Percentage of frequency modulation
D	Percentage of carrier phase shift

16. - G4C01

Which of the following might be useful in reducing RF interference to audio frequency devices?

Select	Answer
A	Forward-biased diode
B	Bypass inductor
C	Reverse-biased diode
D	Bypass capacitor

17. - G4D01

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

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

18. - G4E10

What is the reason that a series diode is connected between a solar panel and a storage battery that is being charged by the panel?

Select	Answer
A	The diode prevents self-discharge of the battery though the panel during times of low or no illumination
B	The diode serves to regulate the charging voltage to prevent overcharge
C	The diode limits the current flowing from the panel to a safe value
D	The diode greatly increases the efficiency during times of high illumination

19. - G5A13

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

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

20. - G5B12

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

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

21. - G5C03

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

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

22. - G6A02

What is an advantage of the low internal resistance of nickel-cadmium batteries?

Select	Answer
A	Long life
B	Rapid recharge
C	High voltage
D	High discharge current

23. - G6B05

What is meant when memory is characterized as non-volatile?

Select	Answer
A	The stored information cannot be changed once written
B	It is resistant to high temperatures
C	It is resistant to radiation damage
D	The stored information is maintained even if power is removed

24. - G7A03

What is the peak-inverse-voltage across the rectifiers in a full-wave bridge power supply?

Select	Answer
A	One-quarter the normal output voltage of the power supply
B	Equal to the normal peak output voltage of the power supply
C	Half the normal output voltage of the power supply
D	Double the normal peak output voltage of the power supply

25. - G7B12

Which of these classes of amplifiers has the highest efficiency?

Select	Answer
A	Class A
B	Class C
C	Class AB
D	Class B

26. - G7C09

Which of the following is needed for a Digital Signal Processor IF filter?

Select	Answer
A	All of the these choices are correct
B	A digital to analog converter
C	An analog to digital converter
D	A digital processor chip

27. - G8A09

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

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

28. - G8B08

Why is it important to know the duty cycle of the mode you are using when transmitting?

Select	Answer
A	To allow time for the other station to break in during a transmission
B	Some modes have high duty cycles which could exceed the transmitter's average power rating.
C	To aid in tuning your transmitter
D	All of these choices are correct

29. - G8C11

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

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

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	1.5:1
D	6:1

31. - G9B09

Which of the following is an advantage of a horizontally polarized as compared to a vertically polarized HF antenna?

Select	Answer
A	Lower radiation resistance
B	Shorter Radials
C	Lower ground reflection losses
D	Lower feed point impedance

32. - G9C09

How does the gain of two 3-element horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single 3-element Yagi?

Select	Answer
A	Approximately 3 dB higher
B	Approximately 9 dB higher
C	Approximately 1.5 dB higher
D	Approximately 6 dB higher

33. - G9D05

What is an advantage of vertical stacking of horizontally polarized Yagi antennas?

Select	Answer
A	It allows simultaneous vertical and horizontal polarization
B	It allows quick selection of vertical or horizontal polarization
C	It narrows the main lobe in elevation
D	It narrows the main lobe in azimuth

34. - G0A03

How can you determine that your station complies with FCC RF exposure regulations?

Select	Answer
A	All of these choices are correct
B	By measurement of field strength using calibrated equipment
C	By calculation based on computer modeling
D	By calculation based on FCC OET Bulletin 65

35. - G0B13

What must you do when powering your house from an emergency generator?

Select	Answer
A	All of these choices are correct
B	Disconnect the incoming utility power feed
C	Insure that all lightning grounds are disconnected
D	Insure that the generator is not grounded