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. - G1A01

On which of the following bands is a General Class license holder granted all amateur frequency privileges?

Select	Answer
A	160, 80, 40, and 10 meters
B	160, 30, 17, 15, 12, and 10 meters
C	60, 20, 17, and 12 meters
D	160, 60, 30, 17, 12, and 10 meters

2. - G1B10

What is the power limit for beacon stations?

Select	Answer
A	100 watts PEP output
B	20 watts PEP output
C	200 watts PEP output
D	10 watts PEP output

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	1.8 kHz
B	2.8 kHz
C	5.6 kHz
D	3 kHz

4. - G1D06

When must you add the special identifier "AG" after your call sign if you are a Technician Class licensee and have a CSCE for General Class operator privileges, but the FCC has not yet posted your upgrade on its website ?

Select	Answer
A	A special identifier is not required as long as your General Class license application has been filed with the FCC
B	Whenever you operate on any amateur frequency
C	Whenever you operate using Technician frequency privileges
D	Whenever you operate using General Class frequency privileges

5. - G1E06

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

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

6. - G2A11

What does the expression "CQ DX" usually indicate?

Select	Answer
A	A general call for any station
B	The caller is looking for any station outside their own country
C	The caller is listening for a station in Germany
D	A distress call

7. - G2B08

What is the "DX window" in a voluntary band plan?

Select	Answer
A	An FCC rule that prohibits contacts between stations within the United States and possessions in that portion of the band
B	An FCC rule that allows only digital contacts in that portion of the band
C	A portion of the band that should not be used for contacts between stations within the 48 contiguous United States
D	A portion of the band that has been voluntarily set aside for digital contacts only

8. - G2C01

Which of the following describes full break-in telegraphy (QSK)?

Select	Answer
A	Breaking stations send the Morse code prosign BK
B	Automatic keyers are used to send Morse code instead of hand keys
C	Transmitting stations can receive between code characters and elements
D	An operator must activate a manual send/receive switch before and after every transmission

9. - G2D06

How is a directional antenna pointed when making a "long-path" contact with another station?

Select	Answer
A	Toward the north
B	Toward the rising Sun
C	180 degrees from its short-path heading
D	Along the gray line

10. - G2E13

Which communication system sometimes uses the Internet to transfer messages?

Select	Answer
A	ARES
B	Winlink
C	RTTY
D	Skywarn

11. - G3A13

What does the A-index indicate?

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

12. - G3B08

What does MUF stand for?

Select	Answer
A	The Maximum Usable Frequency for communications between two points
B	The Minimum Usable Frequency during a 24 hour period
C	The Maximum Usable Frequency during a 24 hour period
D	The Minimum Usable Frequency for communications between two points

13. - G3C07

What makes HF scatter signals often sound distorted?

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

14. - G4A08

What is the correct adjustment for the load or coupling control of a vacuum tube RF power amplifier?

Select	Answer
A	Maximum power output without exceeding maximum allowable plate current
B	Minimum plate current without exceeding maximum allowable grid current
C	Minimum SWR on the antenna
D	Highest plate voltage while minimizing grid current

15. - G4B06

What is an advantage of a digital voltmeter as compared to an analog voltmeter?

Select	Answer
A	Better for measuring computer circuits
B	Faster response
C	Better precision for most uses
D	Better for RF measurements

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	Arcing at a poor electrical connection
C	Not using a balun or line isolator to feed balanced antennas
D	Using a balun to feed an unbalanced antenna

17. - G4D06

Where is an S meter found?

Select	Answer
A	In a transmitter
B	In a receiver
C	In a conductance bridge
D	In an SWR bridge

18. - G4E05

Which of the following most limits the effectiveness of an HF mobile transceiver operating in the 75-meter band?

Select	Answer
A	The wire gauge of the DC power line to the transceiver
B	The antenna system
C	FCC rules limiting mobile output power on the 75-meter band
D	"Picket Fencing" signal variation

19. - G5A12

What is one reason to use an impedance matching transformer?

Select	Answer
A	To maximize the transfer of power
B	To minimize transmitter power output
C	To reduce power supply ripple
D	To minimize radiation resistance

20. - G5B04

How many watts of electrical power are used by a 12 VDC light bulb that draws 0.2 amperes?

Select	Answer
A	6 watts
B	24 watts
C	2.4 watts
D	60 watts

21. - G5C17

What is the value in nanofarads (nF) of a 22,000 pF capacitor?

Select	Answer
A	2.2 nF
B	220 nF
C	22 nF
D	0.22 nF

22. - G6A04

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

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

23. - G6B12

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

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

24. - G7A09

Which symbol in figure G7-1 represents a field effect transistor?

Select	Answer
A	Symbol 5
B	Symbol 1
C	Symbol 2
D	Symbol 4

25. - G7B13

What is the reason for neutralizing the final amplifier stage of a transmitter?

Select	Answer
A	To keep the carrier on frequency
B	To eliminate self-oscillations
C	To limit the modulation index
D	To cut off the final amplifier during standby periods

26. - G7C07

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

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

27. - G8A06

What is one advantage of carrier suppression in a single sideband phone transmission versus full carrier amplitude modulation?

Select	Answer
A	Audio fidelity is improved
B	Simpler receiving equipment can be used
C	Available transmitter power can be used more effectively
D	Greater modulation percentage is obtainable with lower distortion

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 terminates the contact
D	It requests the packet be retransmitted

30. - G9A06

In what units is RF feed line loss usually expressed?

Select	Answer
A	Decibels per 100 feet
B	Ohms per 100 feet
C	Decibels per 1000 feet
D	Ohms per 1000 feet

31. - G9B06

Where should the radial wires of a ground-mounted vertical antenna system be placed?

Select	Answer
A	At the center of the antenna
B	Parallel to the antenna element
C	On the surface of the Earth or buried a few inches below the ground
D	As high as possible above the ground

32. - G9C13

Approximately how long is each side of the driven element of a quad antenna?

Select	Answer
A	1/2 wavelength
B	1/4 wavelength
C	1 wavelength
D	3/4 wavelength

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	High vertical angle radiation for working stations within a radius of a few hundred kilometers
C	High forward gain
D	All of these choices are correct

34. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations when transmitter power exceeds levels specified in FCC Part 97.13?

Select	Answer
A	Post a copy of FCC Part 97.13 in the station
B	Post a copy of OET Bulletin 65 in the station
C	Perform a routine RF exposure evaluation
D	All of these choices are correct

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

Figure G7-1