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	21300 kHz
D	14250 kHz

2. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	The frequency must be coordinated with the National Beacon Organization
B	A beacon station may not use automatic control
C	There must be no more than one beacon signal transmitting in the same band from the same station location
D	The frequency must be posted on the Internet or published in a national periodical

3. - G1C06

Which of the following is a limitation on transmitter power on the 1.8 MHz band?

Select	Answer
A	1200 watts PEP output
B	1000 watts PEP output
C	1500 watts PEP output
D	200 watts PEP output

4. - G1D02

What license examinations may you administer when you are an accredited VE holding a General Class operator license?

Select	Answer
A	General only
B	General and Technician
C	Extra, General and Technician
D	Technician only

5. - G1E03

What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?

Select	Answer
A	The station initiating the contact must be under local or remote control
B	The interrogating transmission must be made by another automatically controlled station
C	The control operator of the interrogating station must hold an Extra Class license
D	No third party traffic maybe be transmitted

6. - G2A05

Which mode of voice communication is most commonly used on the HF amateur bands?

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

7. - G2B04

When selecting a CW transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	5 to 50 Hz
B	150 to 500 Hz
C	3 to 6 kHz
D	1 to 3 kHz

8. - G2C09

What does the Q signal "QSL" mean?

Select	Answer
A	We have already confirmed by card
B	We have worked before
C	I acknowledge receipt
D	Send slower

9. - G2D10

What is QRP operation?

Select	Answer
A	Remote piloted model control
B	Traffic relay procedure net operation
C	Transmission using Quick Response Protocol
D	Low power transmit operation

10. - G2E09

How do you join a contact between two stations using the PACTOR protocol?

Select	Answer
A	Send broadcast packets containing your call sign while in MONITOR mode
B	Send a NAK response continuously so that the sending station has to pause
C	Transmit a steady carrier until the PACTOR protocol times out and disconnects
D	Joining an existing contact is not possible, PACTOR connections are limited to two stations

11. - G3A01

What is the significance of the sunspot number with regard to HF propagation?

Select	Answer
A	A zero sunspot number indicate radio propagation is not possible on any band
B	All of these choices are correct.
C	Lower sunspot numbers generally indicate greater probability of sporadic E propagation
D	Higher sunspot numbers generally indicate a greater probability of good propagation at higher frequencies

12. - G3B12

What factor or factors affect the MUF?

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

13. - G3C09

What type of radio wave propagation allows a signal to be detected at a distance too far for ground wave propagation but too near for normal sky-wave propagation?

Select	Answer
A	Faraday rotation
B	Sporadic-E skip
C	Scatter
D	Short-path skip

14. - G4A13

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

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

15. - G4B01

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

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

16. - G4C11

Which of the following is a function of a digital signal processor?

Select	Answer
A	To increase antenna bandwidth
B	To increase antenna gain
C	To remove noise from received signals
D	To provide adequate grounding

17. - G4D06

Where is an S meter found?

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

18. - G4E08

What is the name of the process by which sunlight is changed directly into electricity?

Select	Answer
A	Photovoltaic conversion
B	Photosynthesis
C	Photon decomposition
D	Photon emission

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 alternating current caused by capacitance or inductance
C	Opposition to the flow of direct current caused by resistance
D	A property of ideal resistors in AC circuits

20. - G5B11

What is the ratio of peak envelope power to average power for an unmodulated carrier?

Select	Answer
A	2.00
B	1.414
C	0.707
D	1.00

21. - G5C14

Which of the following components should be added to an inductor to increase the inductance?

Select	Answer
A	An inductor in series
B	A capacitor in series
C	A resistor in parallel
D	An inductor in parallel

22. - G6A01

What is the minimum allowable discharge voltage for maximum life of a standard 12 volt lead acid battery?

Select	Answer
A	10.5 volts
B	6 volts
C	12 volts
D	8.5 volts

23. - G6B08

How is an LED biased when emitting light?

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

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. - G7B14

Which of the following describes a linear amplifier?

Select	Answer
A	An amplifier used as a frequency multiplier
B	A Class C high efficiency amplifier
C	An amplifier in which the output preserves the input waveform
D	Any RF power amplifier used in conjunction with an amateur transceiver

26. - G7C03

What circuit is used to process signals from the RF amplifier and local oscillator then send the result to the IF filter in a superheterodyne receiver?

Select	Answer
A	Mixer
B	IF amplifier
C	Detector
D	Balanced modulator

27. - G8A09

What control is typically adjusted for proper ALC setting on an amateur single sideband transceiver?

Select	Answer
A	The RF clipping level
B	Attenuator level
C	Antenna inductance or capacitance
D	Transmit audio or microphone gain

28. - G8B04

What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?

Select	Answer
A	Mixer
B	Reactance modulator
C	Multiplier
D	Pre-emphasis network

29. - G8C05

In the PACTOR protocol, what is meant by an NAK response to a transmitted packet?

Select	Answer
A	The entire file has been received correctly
B	The receiver is busy decoding the packet
C	The receiver is reporting the packet was received without error
D	The receiver is requesting the packet be retransmitted

30. - G9A05

How does the attenuation of coaxial cable change as the frequency of the signal it is carrying increases?

Select	Answer
A	Attenuation decreases
B	Attenuation reaches a maximum at approximately 18 MHz
C	Attenuation is independent of frequency
D	Attenuation increases

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

32. - G9C05

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

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

33. - G9D01

What does the term NVIS mean as related to antennas?

Select	Answer
A	Non-Varying Indicated SWR
B	Near Vertical Incidence sky-wave
C	Non-Varying Impedance Smoothing
D	Nearly Vertical Inductance System

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	File an Environmental Impact Statement (EIS-97) with the FCC
C	Take action to prevent human exposure to the excessive RF fields
D	Secure written permission from your neighbors to operate above the controlled MPE limits

35. - G0B03

Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?

Select	Answer
A	15 amperes
B	100 amperes
C	60 amperes
D	30 amperes

Figure G7-1