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. - G1A09

Which of the following frequencies is within the General Class portion of the 15-meter band?

Select	Answer
A	18155 kHz
B	21300 kHz
C	24900 kHz
D	14250 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 Amateur Radio custom
B	In conformance with good engineering and good amateur practice
C	In conformance with the rules of the IARU
D	All of these choices are correct

3. - G1C03

What is the maximum bandwidth permitted by FCC rules for Amateur Radio stations transmitting on USB frequencies in the 60-meter band?

Select	Answer
A	5.6 kHz
B	3 kHz
C	2.8 kHz
D	1.8 kHz

4. - G1D08

Which of the following criteria must be met for a non-U.S. citizen to be an accredited Volunteer Examiner?

Select	Answer
A	The person must hold an FCC granted Amateur Radio license of General Class or above
B	The person's home citizenship must be in ITU region 2
C	None of these choices is correct; a non-U.S. citizen cannot be a Volunteer Examiner
D	The person must be a resident of the U.S. for a minimum of 5 years

5. - G1E05

What types of messages for a third party in another country may be transmitted by an amateur station?

Select	Answer
A	Any messages, as long as the text of the message is recorded in the station log
B	Only messages for other licensed amateurs
C	Only messages relating to Amateur Radio or remarks of a personal character, or messages relating to emergencies or disaster relief
D	Any message, as long as the amateur operator is not paid

6. - G2A08

Which of the following is a recommended way to break into a contact when using phone?

Select	Answer
A	Say your call sign during a break between transmissions by the other stations
B	Say "CQ" followed by the call sign of either station
C	Say "Break Break Break" and wait for a response
D	Say "QRZ" several times followed by your call sign

7. - G2B07

Which of the following complies with good amateur practice when choosing a frequency on which to initiate a call?

Select	Answer
A	Check to see if the channel is assigned to another station
B	All of these choices are correct
C	Identify your station by transmitting your call sign at least 3 times
D	Follow the voluntary band plan for the operating mode you intend to use

8. - G2C05

What is the best speed to use when answering a CQ in Morse code?

Select	Answer
A	At the standard calling speed of 5 wpm
B	The fastest speed at which you are comfortable copying
C	The speed at which the CQ was sent
D	A slow speed until contact is established

9. - G2D08

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

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

10. - G2E02

How can a PACTOR modem or controller be used to determine if the channel is in use by other PACTOR stations?

Select	Answer
A	Transmit UI packets several times and wait to see if there is a response from another PACTOR station
B	Send the message: "Is this frequency in use?"
C	Put the modem or controller in a mode which allows monitoring communications without a connection
D	Unplug the data connector temporarily and see if the channel-busy indication is turned off

11. - G3A11

Approximately how long is the typical sunspot cycle?

Select	Answer
A	11 years
B	8 minutes
C	28 days
D	40 hours

12. - G3B12

What factor or factors affect the MUF?

Select	Answer
A	Path distance and location
B	All of these choices are correct
C	Solar radiation and ionospheric disturbances
D	Time of day and season

13. - G3C13

What is Near Vertical Incidence Sky-wave (NVIS) propagation?

Select	Answer
A	Long path HF propagation at sunrise and sunset
B	Propagation near the MUF
C	Double hop propagation near the LUF
D	Short distance MF or HF propagation using high elevation angles

14. - G4A13

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

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

15. - G4B14

What is an instance in which the use of an instrument with analog readout may be preferred over an instrument with a digital readout?

Select	Answer
A	When measuring the frequency of an oscillator
B	When high precision is desired
C	When adjusting tuned circuits
D	When testing logic circuits

16. - G4C07

What is one good way to avoid unwanted effects of stray RF energy in an amateur station?

Select	Answer
A	Install a few ferrite beads on the ground wire where it connects to your station
B	Connect all equipment grounds together
C	Install an RF filter in series with the ground wire
D	Use a ground loop for best conductivity

17. - G4D11

How close to the upper edge of the 20-meter General Class band should your displayed carrier frequency be when using 3 kHz wide USB?

Select	Answer
A	At least 3 kHz below the edge of the band
B	At least 3 kHz above the edge of the band
C	Your displayed carrier frequency may be set at the edge of the band
D	At least 1 kHz below the edge of the segment

18. - G4E07

Which of the following may cause interference to be heard in the receiver of an HF radio installed in a recent model vehicle?

Select	Answer
A	All of these choices are correct
B	The fuel delivery system
C	The vehicle control computer
D	The battery charging system

19. - G5A04

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

Select	Answer
A	Conductance
B	Admittance
C	Reactance
D	Reluctance

20. - G5B03

How many watts of electrical power are used if 400 VDC is supplied to an 800 ohm load?

Select	Answer
A	0.5 watts
B	400 watts
C	3200 watts
D	200 watts

21. - G5C11

What is the inductance of a 20 millihenry inductor connected in series with a 50 millihenry inductor?

Select	Answer
A	0.07 millihenrys
B	14.3 millihenrys
C	1000 millihenrys
D	70 millihenrys

22. - G6A02

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

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

23. - G6B08

How is an LED biased when emitting light?

Select	Answer
A	Reverse Biased
B	At the Zener voltage
C	Forward Biased
D	Beyond cutoff

24. - G7A11

Which symbol in figure G7-1 represents an NPN junction transistor?

Select	Answer
A	Symbol 2
B	Symbol 11
C	Symbol 1
D	Symbol 7

25. - G7B09

What determines the frequency of an LC oscillator?

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

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

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

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

28. - G8B05

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

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

29. - G8C07

How does the receiving station respond to an ARQ data mode packet containing errors?

Select	Answer
A	It sends the packet back to the transmitting station
B	It requests a change in transmitting protocol
C	It terminates the contact
D	It requests the packet be retransmitted

30. - G9A04

What might cause reflected power at the point where a feed line connects to an antenna?

Select	Answer
A	Feeding the antenna with unbalanced feed line
B	Operating an antenna at its resonant frequency
C	Using more transmitter power than the antenna can handle
D	A difference between feed line impedance and antenna feed point impedance

31. - G9B12

What is the approximate length for a 1/4 wave vertical antenna cut for 28.5 MHz?

Select	Answer
A	21 feet
B	11 feet
C	16 feet
D	8 feet

32. - G9C05

How does increasing boom length and adding directors affect a Yagi antenna?

Select	Answer
A	Front to back ratio decreases
B	Front to side ratio decreases
C	Beamwidth increases
D	Gain increases

33. - G9D06

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

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

34. - G0A05

What must you do if an evaluation of your station shows RF energy radiated from your station exceeds permissible limits?

Select	Answer
A	All of these choices are correct
B	Take action to prevent human exposure to the excessive RF fields
C	File an Environmental Impact Statement (EIS-97) with the FCC
D	Secure written permission from your neighbors to operate above the controlled MPE limits

35. - G0B11

Which of the following is good practice for lightning protection grounds?

Select	Answer
A	Bends in ground wires must be made as close as possible to a right angle
B	They must be bonded together with all other grounds
C	Lightning grounds must be connected to all ungrounded wiring
D	They must be bonded to all buried water and gas lines

Figure G7-1