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	24900 kHz
B	18155 kHz
C	14250 kHz
D	21300 kHz

2. - G1B06

When is an amateur station permitted to transmit secret codes?

Select	Answer
A	Only when the information is of a routine, personal nature
B	To control a space station
C	During a declared communications emergency
D	Only with Special Temporary Authorization from the FCC

3. - G1C08

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

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

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

5. - G1E12

Under what circumstances are messages that are sent via digital modes exempt from Part 97 third party rules that apply to other modes of communication?

Select	Answer
A	When messages are encrypted
B	Under no circumstances
C	When messages are not encrypted
D	When under automatic control

6. - G2A08

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

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

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. - G2C04

What does the Q signal "QRL?" mean?

Select	Answer
A	"Are you listening only for a specific station?"
B	"Are you operating full break-in" or "Can you operate full break-in?"
C	"Are you busy?", or "Is this frequency in use?"
D	"Will you keep the frequency clear?"

9. - G2D01

What is the Amateur Auxiliary to the FCC?

Select	Answer
A	Amateur volunteers who use their station equipment to help civil defense organizations in times of emergency
B	Amateur volunteers who conduct frequency coordination for amateur VHF repeaters
C	Amateur volunteers who are formally enlisted to monitor the airwaves for rules violations
D	Amateur volunteers who conduct amateur licensing examinations

10. - G2E03

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

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

11. - G3A08

Which of the following effects can a geomagnetic storm have on radio propagation?

Select	Answer
A	Improved high-latitude HF propagation
B	Improved chances of UHF ducting
C	Improved ground-wave propagation
D	Degraded high-latitude HF propagation

12. - G3B04

What is a reliable way to determine if the MUF is high enough to support skip propagation between your station and a distant location on frequencies between 14 and 30 MHz?

Select	Answer
A	Listen for signals from an international beacon in the frequency range you plan to use
B	Send a series of dots on the band and listen for echoes from your signal
C	Check the strength of TV signals from Western Europe
D	Check the strength of signals in the MF AM broadcast band

13. - G3C04

What does the term "critical angle" mean as used in radio wave propagation?

Select	Answer
A	The highest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions
B	The lowest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions
C	The long path azimuth of a distant station
D	The short path azimuth of a distant station

14. - G4A03

What is normally meant by operating a transceiver in "split" mode?

Select	Answer
A	The transceiver is operating from an external power source
B	The radio is operating at half power
C	The transceiver is set to different transmit and receive frequencies
D	The transmitter is emitting an SSB signal, as opposed to DSB operation

15. - G4B01

What item of test equipment contains horizontal and vertical channel amplifiers?

Select	Answer
A	A signal generator
B	An oscilloscope
C	An ammeter
D	An ohmmeter

16. - G4C12

Which of the following is an advantage of a receiver DSP IF filter as compared to an analog filter?

Select	Answer
A	The DSP filter is much more effective at VHF frequencies
B	Fewer digital components are required
C	A wide range of filter bandwidths and shapes can be created
D	Mixing products are greatly reduced

17. - G4D10

How close to the lower edge of the 40-meter General Class phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?

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

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

19. - G5A08

Why is impedance matching important?

Select	Answer
A	So the source can deliver maximum power to the load
B	To ensure that there is less resistance than reactance in the circuit
C	To ensure that the resistance and reactance in the circuit are equal
D	So the load will draw minimum power from the source

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	200 watts
C	400 watts
D	3200 watts

21. - G5C17

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

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

22. - G6A02

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

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

23. - G6B16

Which of the following describes a type N connector?

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

24. - G7A13

Which symbol in Figure G7-1 represents a tapped inductor?

Select	Answer
A	Symbol 7
B	Symbol 11
C	Symbol 6
D	Symbol 1

25. - G7B03

Which of the following describes the function of a two input AND gate?

Select	Answer
A	Output is low only when both inputs are high
B	Output is high only when both inputs are high
C	Output is high when either or both inputs are low
D	Output is low when either or both inputs are high

26. - G7C10

How is Digital Signal Processor filtering accomplished?

Select	Answer
A	By converting the signal from digital to analog and taking the difference of mixing products
B	By converting the signal from analog to digital and using digital processing
C	By using direct signal phasing
D	By differential spurious phasing

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

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

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	5 kHz
B	101.75 Hz
C	416.7 Hz
D	60 kHz

29. - G8C04

Which of the following describes Baudot code?

Select	Answer
A	A 5-bit code with additional start and stop bits
B	A code using error detection and correction
C	A 7-bit code with start, stop and parity bits
D	A code using SELCAL and LISTEN

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	1.5:1
D	You cannot determine SWR from impedance values

31. - G9B08

How does the feed point impedance of a 1/2 wave dipole change as the feed point is moved from the center toward the ends?

Select	Answer
A	It steadily decreases
B	It is unaffected by the location of the feed point
C	It peaks at about 1/8 wavelength from the end
D	It steadily increases

32. - G9C19

How does antenna gain stated in dBi compare to gain stated in dBd for the same antenna?

Select	Answer
A	dBi gain figures are the same as the square root of dBd gain figures multiplied by 2.15
B	dBi gain figures are 2.15 dB higher than dBd gain figures
C	dBi gain figures are 2.15 dB lower then dBd gain figures
D	dBi gain figures are the reciprocal of dBd gain figures + 2.15 dB

33. - G9D09

Which of the following is an application for a Beverage antenna?

Select	Answer
A	Directional transmitting for low HF bands
B	Portable direction finding at lower HF frequencies
C	Portable direction finding at higher HF frequencies
D	Directional receiving for low HF bands

34. - G0A12

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

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

35. - G0B15

Which of the following is true of an emergency generator installation?

Select	Answer
A	All of these choices are correct
B	The generator should be located in a well-ventilated area
C	The generator must be insulated from ground
D	Fuel should be stored near the generator for rapid refueling in case of an emergency

Figure G7-1