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. - G1A10

Which of the following frequencies is available to a control operator holding a General Class license?

Select	Answer
A	All of these choices are correct
B	28.550 MHz
C	28.020 MHz
D	28.350 MHz

2. - G1B12

Who or what determines "good engineering and good amateur practice" as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

Select	Answer
A	The IEEE
B	The FCC
C	The Control Operator
D	The ITU

3. - G1C06

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

Select	Answer
A	200 watts PEP output
B	1000 watts PEP output
C	1200 watts PEP output
D	1500 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	An FCC General Class or higher license and VEC accreditation
B	Receipt of a CSCE for General Class
C	Notification to the FCC that you want to give an examination
D	Possession of a properly obtained telegraphy license

5. - G1E09

What language must be used when identifying your station if you are using a language other than English in making a contact using phone emission?

Select	Answer
A	The language being used for the contact
B	English, Spanish, French, or German
C	English only
D	Any language recognized by the United Nations

6. - G2A05

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

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

7. - G2B11

What frequency should be used to send a distress call?

Select	Answer
A	Only frequencies used by police, fire or emergency medical services
B	Only frequencies authorized for RACES or ARES stations
C	Only frequencies that are within your operating privileges
D	Whichever frequency has the best chance of communicating the distress message

8. - G2C11

What does the Q signal "QRV" mean?

Select	Answer
A	I am quitting for the day
B	I am ready to receive messages
C	You are sending too fast
D	There is interference on the frequency

9. - G2D11

Which HF antenna would be the best to use for minimizing interference?

Select	Answer
A	A quarter-wave vertical antenna
B	A directional antenna
C	An isotropic antenna
D	An omnidirectional antenna

10. - G2E11

What is indicated on a waterfall display by one or more vertical lines adjacent to a PSK31 signal?

Select	Answer
A	Insufficient modulation
B	Overmodulation
C	Long Path propagation
D	Backscatter propagation

11. - G3A06

What is a geomagnetic storm?

Select	Answer
A	Ripples in the ionosphere
B	A temporary disturbance in the Earth's magnetosphere
C	A thunderstorm which affects radio propagation
D	A sudden drop in the solar flux index

12. - G3B01

How might a sky-wave signal sound if it arrives at your receiver by both short path and long path propagation?

Select	Answer
A	Signal strength increased by 3 dB
B	A well-defined echo might be heard
C	The signal might be cancelled causing severe attenuation
D	Periodic fading approximately every 10 seconds

13. - G3C11

Which of the following antenna types will be most effective for skip communications on 40-meters during the day?

Select	Answer
A	A horizontal dipole placed between 1/8 and 1/4 wavelength above the ground
B	A vertical antenna
C	A left-hand circularly polarized antenna
D	A right-hand circularly polarized antenna

14. - G4A14

What is likely to happen if a transceiver's ALC system is not set properly when transmitting AFSK signals with the radio using single sideband mode?

Select	Answer
A	ALC will invert the modulation of the AFSK mode
B	Improper action of ALC distorts the signal and can cause spurious emissions
C	All of these choices are correct
D	When using digital modes, too much ALC activity can cause the transmitter to overheat

15. - G4B12

What problem can occur when making measurements on an antenna system with an antenna analyzer?

Select	Answer
A	Strong signals from nearby transmitters can affect the accuracy of measurements
B	The analyzer can be damaged if measurements outside the ham bands are attempted
C	Connecting the analyzer to an antenna can cause it to absorb harmonics
D	Permanent damage to the analyzer may occur if it is operated into a high SWR

16. - G4C02

Which of the following could be a cause of interference covering a wide range of frequencies?

Select	Answer
A	Not using a balun or line isolator to feed balanced antennas
B	Arcing at a poor electrical connection
C	Lack of rectification of the transmitter's signal in power conductors
D	Using a balun to feed an unbalanced antenna

17. - G4D08

What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Select	Answer
A	7.178 to 7.181 MHz
B	7.1765 to 7.1795 MHz
C	7.178 to 7.184 MHz
D	7.175 to 7.178 MHz

18. - G4E08

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

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

19. - G5A01

What is impedance?

Select	Answer
A	The electric charge stored by a capacitor
B	The opposition to the flow of current in an AC circuit
C	The force of repulsion between two similar electric fields
D	The inverse of resistance

20. - G5B14

What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50 ohm resistive load connected to the transmitter output?

Select	Answer
A	8.75 watts
B	625 watts
C	5000 watts
D	2500 watts

21. - G5C10

What is the inductance of three 10 millihenry inductors connected in parallel?

Select	Answer
A	3.3 millihenrys
B	3.3 henrys
C	30 millihenrys
D	0.30 henrys

22. - G6A16

What will happen to the resistance if the temperature of a resistor is increased?

Select	Answer
A	It will change depending on the resistor's reactance coefficient
B	It will become time dependent
C	It will change depending on the resistor's temperature coefficient
D	It will stay the same

23. - G6B14

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

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

24. - G7A12

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

Select	Answer
A	Symbol 1
B	Symbol 4
C	Symbol 7
D	Symbol 6

25. - G7B05

How many states does a 3-bit binary counter have?

Select	Answer
A	8
B	16
C	3
D	6

26. - G7C01

Which of the following is used to process signals from the balanced modulator then send them to the mixer in some single sideband phone transmitters?

Select	Answer
A	Filter
B	Carrier oscillator
C	IF amplifier
D	RF amplifier

27. - G8A04

What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?

Select	Answer
A	Phase modulation
B	Pulse modulation
C	Multiplex modulation
D	Amplitude modulation

28. - G8B02

If a receiver mixes a 13.800 MHz VFO with a 14.255 MHz received signal to produce a 455 kHz intermediate frequency (IF) signal, what type of interference will a 13.345 MHz signal produce in the receiver?

Select	Answer
A	Intermediate interference
B	Image response
C	Quadrature noise
D	Mixer interference

29. - G8C09

What does the number 31 represent in "PSK31"?

Select	Answer
A	The version of the PSK protocol
B	The year in which PSK31 was invented
C	The approximate transmitted symbol rate
D	The number of characters that can be represented by PSK31

30. - G9A01

Which of the following factors determine the characteristic impedance of a parallel conductor antenna feed line?

Select	Answer
A	The frequency of the signal and the length of the line
B	The distance between the centers of the conductors and the radius of the conductors
C	The distance between the centers of the conductors and the length of the line
D	The radius of the conductors and the frequency of the signal

31. - G9B05

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

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

32. - G9C08

What is meant by the "main lobe" of a directive antenna?

Select	Answer
A	The point of maximum current in a radiating antenna element
B	The magnitude of the maximum vertical angle of radiation
C	The direction of maximum radiated field strength from the antenna
D	The maximum voltage standing wave point on a radiating element

33. - G9D03

At what height above ground is an NVIS antenna typically installed?

Select	Answer
A	As close to 1/2 wavelength as possible
B	As close to one wavelength as possible
C	Height is not critical as long as it is significantly more than 1/2 wavelength
D	Between 1/10 and 1/4 wavelength

34. - G0A01

What is one way that RF energy can affect human body tissue?

Select	Answer
A	It causes the blood count to reach a dangerously low level
B	It cools body tissue
C	It heats body tissue
D	It causes radiation poisoning

35. - G0B13

What must you do when powering your house from an emergency generator?

Select	Answer
A	Insure that all lightning grounds are disconnected
B	Disconnect the incoming utility power feed
C	Insure that the generator is not grounded
D	All of these choices are correct

Figure G7-1