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. - G1A06

Which of the following frequencies is within the General Class portion of the 75-meter phone band?

Select	Answer
A	3900 kHz
B	1875 kHz
C	4005 kHz
D	3750 kHz

2. - G1B08

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

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

3. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

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

4. - G1D09

How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

Select	Answer
A	For as long as your current license is valid
B	365 days
C	180 days
D	30 days

5. - G1E08

Which of the following is a requirement for a non-licensed person to communicate with a foreign Amateur Radio station from a station with an FCC-granted license at which an FCC licensed control operator is present?

Select	Answer
A	All of these choices are correct
B	The control operator must have at least a General Class license
C	Information must be exchanged in English
D	The foreign amateur station must be in a country with which the United States has a third party agreement

6. - G2A03

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

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

7. - G2B09

Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

Select	Answer
A	Any control operator when normal communication systems are operational
B	Only a RACES net control operator
C	A person holding an FCC issued amateur operator license or an appropriate government official
D	Only a person holding an FCC issued amateur operator license

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 quitting for the day
D	I am ready to receive messages

9. - G2D09

What information is traditionally contained in a station log?

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

10. - G2E04

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

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

11. - G3A12

What does the K-index indicate?

Select	Answer
A	The short term stability of the Earth's magnetic field
B	The stability of the Sun's magnetic field
C	The relative position of sunspots on the surface of the Sun
D	The solar radio flux at Boulder, Colorado

12. - G3B10

What is the approximate maximum distance along the Earth's surface that is normally covered in one hop using the E region?

Select	Answer
A	12,000 miles
B	180 miles
C	1,200 miles
D	2,500 miles

13. - G3C05

Why is long distance communication on the 40-meter, 60-meter, 80-meter and 160-meter bands more difficult during the day?

Select	Answer
A	The D layer absorbs signals at these frequencies during daylight hours
B	The F layer absorbs signals at these frequencies during daylight hours
C	The F layer is unstable during daylight hours
D	The E layer is unstable during daylight hours

14. - G4A04

What reading on the plate current meter of a vacuum tube RF power amplifier indicates correct adjustment of the plate tuning control?

Select	Answer
A	No change will be observed
B	A pronounced dip
C	A slow, rhythmic oscillation
D	A pronounced peak

15. - G4B11

Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?

Select	Answer
A	Transmitter
B	All of these choices are correct
C	Antenna and feed line
D	Receiver

16. - G4C09

How can a ground loop be avoided?

Select	Answer
A	Connect all ground conductors in series
B	Connect the AC neutral conductor to the ground wire
C	Connect all ground conductors to a single point
D	Avoid using lock washers and star washers when making ground connections

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

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

19. - G5A02

What is reactance?

Select	Answer
A	A large spark produced at switch contacts when an inductor is de-energized
B	Opposition to the flow of direct current caused by resistance
C	A property of ideal resistors in AC circuits
D	Opposition to the flow of alternating current caused by capacitance or inductance

20. - G5B02

How does the total current relate to the individual currents in each branch of a purely resistive parallel circuit?

Select	Answer
A	It is the sum of the reciprocal of each individual voltage drop
B	It decreases as more parallel branches are added to the circuit
C	It equals the average of each branch current
D	It equals the sum of the currents through each branch

21. - G5C12

What is the capacitance of a 20 microfarad capacitor connected in series with a 50 microfarad capacitor?

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

22. - G6A04

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

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

23. - G6B16

Which of the following describes a type N connector?

Select	Answer
A	A moisture-resistant RF connector useful to 10 GHz
B	A threaded connector used for hydraulic systems
C	An audio connector used in surround-sound installations
D	A small bayonet connector used for data circuits

24. - G7A12

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

Select	Answer
A	Symbol 4
B	Symbol 6
C	Symbol 7
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. - 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	About the same
B	Substantially higher
C	Twice the transmission line impedance
D	Substantially lower

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

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

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	5 kHz
D	101.75 Hz

29. - G8C07

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

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

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	3:1
B	6:1
C	You cannot determine SWR from impedance values
D	1.5:1

31. - G9B07

How does the feed point impedance of a 1/2 wave dipole antenna change as the antenna is lowered below 1/4 wave above ground?

Select	Answer
A	It peaks at about 1/8 wavelength above ground
B	It is unaffected by the height above ground
C	It steadily decreases
D	It steadily increases

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

33. - G9D05

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

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

34. - G0A12

What precaution should you take whenever you make adjustments or repairs to an antenna?

Select	Answer
A	Ensure that you and the antenna structure are grounded
B	Turn off the transmitter and disconnect the feed line
C	All of these choices are correct
D	Wear a radiation badge

35. - G0B01

Which wire or wires in a four-conductor connection should be attached to fuses or circuit breakers in a device operated from a 240 VAC single phase source?

Select	Answer
A	All wires
B	Only the neutral wire
C	Only the ground wire
D	Only the two wires carrying voltage

Figure G7-1