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. - G1A11

When General Class licensees are not permitted to use the entire voice portion of a particular band, which portion of the voice segment is generally available to them?

Select	Answer
A	The lower frequency end
B	The upper frequency end on frequencies below 7.3 MHz and the lower end on frequencies above 14.150 MHz
C	The upper frequency end
D	The lower frequency end on frequencies below 7.3 MHz and the upper end on frequencies above 14.150 MHz

2. - G1B07

What are the restrictions on the use of abbreviations or procedural signals in the Amateur Service?

Select	Answer
A	They may be used if they do not obscure the meaning of a message
B	Only "10 codes" are permitted
C	Only "Q" signals are permitted
D	They are not permitted

3. - G1C04

Which of the following limitations apply to transmitter power on every amateur band?

Select	Answer
A	Only the minimum power necessary to carry out the desired communications should be used
B	Power must be limited to 200 watts when transmitting between 14.100 MHz and 14.150 MHz
C	Power should be limited as necessary to avoid interference to another radio service on the frequency
D	Effective radiated power cannot exceed 1500 watts

4. - G1D03

On which of the following band segments may you operate if you are a Technician Class operator and have a CSCE for General Class privileges?

Select	Answer
A	Only the Technician band segments until your upgrade is posted in the FCC database
B	Only on the Technician band segments until your license arrives in the mail
C	On any General or Technician Class band segment except 30-meters and 60-meters
D	On any General or Technician Class band segment

5. - G1E06

Which of the following applies in the event of interference between a coordinated repeater and an uncoordinated repeater?

Select	Answer
A	The frequency coordinator bears 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 licensee of the uncoordinated repeater has primary responsibility to resolve the interference

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 "Break Break Break" and wait for a response
C	Say "QRZ" several times followed by your call sign
D	Say "CQ" followed by the call sign of either station

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

8. - G2C11

What does the Q signal "QRV" mean?

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

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. - G2E03

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

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

11. - G3A11

Approximately how long is the typical sunspot cycle?

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

12. - G3B07

What does LUF stand for?

Select	Answer
A	The Lowest Usable Frequency for communications between two points
B	The Longest Universal Function for communications between two points
C	The Lowest Usable Frequency during a 24 hour period
D	The Longest Universal Function during a 24 hour period

13. - G3C07

What makes HF scatter signals often sound distorted?

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

14. - G4A14

What is likely to happen if a transceiver's ALC system is not set properly when transmitting AFSK signals with the radio using single sideband mode?

Select	Answer
A	Improper action of ALC distorts the signal and can cause spurious emissions
B	All of these choices are correct
C	ALC will invert the modulation of the AFSK mode
D	When using digital modes, too much ALC activity can cause the transmitter to overheat

15. - G4B15

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

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

16. - G4C02

Which of the following could be a cause of interference covering a wide range of frequencies?

Select	Answer
A	Lack of rectification of the transmitter's signal in power conductors
B	Using a balun to feed an unbalanced antenna
C	Arcing at a poor electrical connection
D	Not using a balun or line isolator to feed balanced antennas

17. - G4D08

What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Select	Answer
A	7.1765 to 7.1795 MHz
B	7.178 to 7.181 MHz
C	7.178 to 7.184 MHz
D	7.175 to 7.178 MHz

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

19. - G5A04

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

Select	Answer
A	Reactance
B	Conductance
C	Reluctance
D	Admittance

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	2500 watts
B	5000 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	0.30 henrys
B	30 millihenrys
C	3.3 henrys
D	3.3 millihenrys

22. - G6A04

When is it acceptable to recharge a carbon-zinc primary cell?

Select	Answer
A	Never
B	When the cell is kept warm during the recharging period
C	As long as the voltage has not been allowed to drop below 1.0 volt
D	When a constant current charger is used

23. - G6B03

Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?

Select	Answer
A	Better suited for power supply regulation
B	High power handling capability
C	Better suited for RF amplification
D	Low power consumption

24. - G7A07

What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?

Select	Answer
A	A series of DC pulses at the same frequency as the AC input
B	A steady DC voltage
C	A sine wave at half the frequency of the AC input
D	A series of DC pulses at twice the frequency of the AC input

25. - G7B09

What determines the frequency of an LC oscillator?

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

27. - G8A01

How is an FSK signal generated?

Select	Answer
A	By using a transceiver's computer data interface protocol to change frequencies
B	By changing an oscillator's frequency directly with a digital control signal
C	By reconfiguring the CW keying input to act as a tone generator
D	By keying an FM transmitter with a sub-audible tone

28. - G8B07

What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?

Select	Answer
A	416.7 Hz
B	60 kHz
C	101.75 Hz
D	5 kHz

29. - G8C07

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

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

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

31. - G9B10

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

Select	Answer
A	24 feet
B	16 feet
C	8 feet
D	32 feet

32. - G9C18

What happens when the feed point of a quad antenna of any shape is moved from the midpoint of the top or bottom to the midpoint of either side?

Select	Answer
A	The radiated signal becomes circularly polarized
B	The polarization of the radiated signal changes from horizontal to vertical
C	There is no change in polarization
D	The polarization of the radiated signal changes from vertical to horizontal

33. - G9D02

Which of the following is an advantage of an NVIS antenna?

Select	Answer
A	Low vertical angle radiation for working stations out to ranges of several thousand kilometers
B	All of these choices are correct
C	High vertical angle radiation for working stations within a radius of a few hundred kilometers
D	High forward gain

34. - G0A03

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

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

35. - G0B02

What is the minimum wire size that may be safely used for a circuit that draws up to 20 amperes of continuous current?

Select	Answer
A	AWG number 20
B	AWG number 8
C	AWG number 12
D	AWG number 16