US Amateur Radio - General (Element 3, 2015-2019) Practice Test

Anonymous User

US Amateur Radio - General (Element 3, 2015-2019) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - G1A13

What is the appropriate action if, when operating on either the 30-meter or 60-meter bands, a station in the primary service interferes with your contact?

Select	Answer
A	Notify the FCCs regional Engineer in Charge of the interference
B	Move to a clear frequency or stop transmitting
C	Increase your transmitter's power to overcome the interference
D	Attempt to contact the station and request that it stop the interference

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	They are not permitted
C	Only "10 codes" are permitted
D	Only "Q" signals are permitted

3. - G1C02

What is the maximum transmitting power an amateur station may use on the 12-meter band?

Select	Answer
A	1500 watts PEP output
B	50 watts PEP output
C	An effective radiated power equivalent to 100 watts from a half-wave dipole
D	200 watts PEP output

4. - G1D05

Which of the following must a person have before they can be an administering VE for a Technician Class license examination?

Select	Answer
A	Possession of a properly obtained telegraphy license
B	An FCC General Class or higher license and VEC accreditation
C	Notification to the FCC that you want to give an examination
D	Receipt of a CSCE for General Class

5. - G1E05

What types of messages for a third party in another country may be transmitted by an amateur station?

Select	Answer
A	Any messages, as long as the text of the message is recorded in the station log
B	Only messages relating to Amateur Radio or remarks of a personal character, or messages relating to emergencies or disaster relief
C	Any message, as long as the amateur operator is not paid
D	Only messages for other licensed amateurs

6. - G2A04

Which mode is most commonly used for voice communications on the 17-meter and 12-meter bands?

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

7. - G2B10

When may the FCC restrict normal frequency operations of amateur stations participating in RACES?

Select	Answer
A	Only when all amateur stations are instructed to stop transmitting
B	When they declare a temporary state of communication emergency
C	When the President's War Emergency Powers have been invoked
D	When they seize your equipment for use in disaster communications

8. - G2C03

What does it mean when a CW operator sends "KN" at the end of a transmission?

Select	Answer
A	Listening for novice stations
B	Listening only for a specific station or stations
C	Closing station now
D	Operating full break-in

9. - G2D02

Which of the following are objectives of the Amateur Auxiliary?

Select	Answer
A	To provide emergency and public safety communications
B	To encourage self-regulation and compliance with the rules by radio amateur operators
C	To conduct efficient and orderly amateur licensing examinations
D	To coordinate repeaters for efficient and orderly spectrum usage

10. - G2E05

What is the standard sideband used to generate a JT65 or JT9 digital signal when using AFSK in any amateur band?

Select	Answer
A	LSB
B	USB
C	SSB
D	DSB

11. - G3A09

What effect does a high sunspot number have on radio communications?

Select	Answer
A	Long-distance communication in the upper HF and lower VHF range is enhanced
B	Microwave communications become unstable
C	High-frequency radio signals become weak and distorted
D	Frequencies above 300 MHz become usable for long-distance communication

12. - G3B05

What usually happens to radio waves with frequencies below the MUF and above the LUF when they are sent into the ionosphere?

Select	Answer
A	They pass through the ionosphere
B	They are amplified by interaction with the ionosphere
C	They are bent and trapped in the ionosphere to circle the Earth
D	They are bent back to the Earth

13. - G3C08

Why are HF scatter signals in the skip zone usually weak?

Select	Answer
A	Signals are scattered from the magnetosphere which is not a good reflector
B	Propagation is through ground waves which absorb most of the signal energy
C	Propagations is through ducts in F region which absorb most of the energy
D	Only a small part of the signal energy is scattered into the skip zone

14. - G4A05

What is a reason to use Automatic Level Control (ALC) with an RF power amplifier?

Select	Answer
A	To reduce harmonic radiation
B	To reduce distortion due to excessive drive
C	To balance the transmitter audio frequency response
D	To increase overall efficiency

15. - G4B11

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

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

16. - G4C06

What effect can be caused by a resonant ground connection?

Select	Answer
A	High RF voltages on the enclosures of station equipment
B	Corrosion of the ground rod
C	A ground loop
D	Overheating of ground straps

17. - G4D09

What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

Select	Answer
A	14.3455 to 14.3485 MHz
B	14.347 to 14.350 MHz
C	14.347 to 14.647 MHz
D	14.344 to 14.347 MHz

18. - G4E01

What is the purpose of a capacitance hat on a mobile antenna?

Select	Answer
A	To increase the power handling capacity of a whip antenna
B	To electrically lengthen a physically short antenna
C	To allow automatic band changing
D	To allow remote tuning

19. - G5A03

Which of the following causes opposition to the flow of alternating current in an inductor?

Select	Answer
A	Reactance
B	Conductance
C	Reluctance
D	Admittance

20. - G5B04

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

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

21. - G5C17

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

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

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	8.5 volts
D	12 volts

23. - G6B14

Which of these connector types is commonly used for audio signals in Amateur Radio stations?

Select	Answer
A	PL-259
B	Type N
C	BNC
D	RCA Phono

24. - G7A02

Which of the following components are used in a power supply filter network?

Select	Answer
A	Capacitors and inductors
B	Quartz crystals
C	Diodes
D	Transformers and transducers

25. - G7B06

What is a shift register?

Select	Answer
A	A digital mixer
B	An array of operational amplifiers used for tri-state arithmetic operations
C	A clocked array of circuits that passes data in steps along the array
D	An analog mixer

26. - G7C02

Which circuit is used to combine signals from the carrier oscillator and speech amplifier then send the result to the filter in some single sideband phone transmitters?

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

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	Transmit audio or microphone gain
D	Antenna inductance or capacitance

28. - G8B05

What is the approximate bandwidth of a PACTOR3 signal at maximum data rate?

Select	Answer
A	500 Hz
B	2300 Hz
C	1800 Hz
D	31.5 Hz

29. - G8C06

What action results from a failure to exchange information due to excessive transmission attempts when using PACTOR or WINMOR?

Select	Answer
A	The checksum overflows
B	Encoding reverts to the default character set
C	The connection is dropped
D	Packets will be routed incorrectly

30. - G9A05

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

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

31. - G9B05

How does antenna height affect the horizontal (azimuthal) radiation pattern of a horizontal dipole HF antenna?

Select	Answer
A	Antenna height has no effect on the pattern
B	If the antenna is less than 1/2 wavelength high, radiation off the ends of the wire is eliminated
C	If the antenna is too high, the pattern becomes unpredictable
D	If the antenna is less than 1/2 wavelength high, the azimuthal pattern is almost omnidirectional

32. - G9C04

Which statement about a three-element, single-band Yagi antenna is true?

Select	Answer
A	All of the elements must be the same length
B	The director is normally the longest element
C	The reflector is normally the shortest element
D	The reflector is normally the longest element

33. - G9D04

What is the primary purpose of antenna traps?

Select	Answer
A	To permit multiband operation
B	To provide balanced feed point impedance
C	To prevent out of band operation
D	To notch spurious frequencies

34. - G0A04

What does "time averaging" mean in reference to RF radiation exposure?

Select	Answer
A	The total RF exposure averaged over a certain time
B	The average amount of power developed by the transmitter over a specific 24 hour period
C	The total time of the exposure
D	The average time it takes RF radiation to have any long-term effect on the body

35. - G0B07

Which of these choices should be observed when climbing a tower using a safety belt or harness?

Select	Answer
A	Confirm that the belt is rated for the weight of the climber and that it is within its allowable service life
B	All of these choices are correct
C	Never lean back and rely on the belt alone to support your weight
D	Ensure that all heavy tools are securely fastened to the belt D-ring