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. - G1A03

On which of the following bands is image transmission prohibited?

Select	Answer
A	30 meters
B	160 meters
C	12 meters
D	20 meters

2. - G1B01

What is the maximum height above ground to which an antenna structure may be erected without requiring notification to the FAA and registration with the FCC, provided it is not at or near a public use airport?

Select	Answer
A	100 feet
B	50 feet
C	200 feet
D	300 feet

3. - G1C01

What is the maximum transmitting power an amateur station may use on 10.140 MHz?

Select	Answer
A	200 watts PEP output
B	1000 watts PEP output
C	1500 watts PEP output
D	2000 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	Receipt of a CSCE for General Class
D	Notification to the FCC that you want to give an examination

5. - G1E02

When may a 10-meter repeater retransmit the 2-meter signal from a station having a Technician Class control operator?

Select	Answer
A	Only during an FCC declared general state of communications emergency
B	Under no circumstances
C	Only if the 10-meter repeater control operator holds at least a General Class license
D	Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission

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 your call sign during a break between transmissions by the other stations
D	Say "QRZ" several times followed by your call sign

7. - G2B02

What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

Select	Answer
A	Acknowledge the station in distress and determine what assistance may be needed
B	Change to a different frequency
C	Continue your communication because you were on the frequency first
D	Immediately cease all transmissions

8. - G2C02

What should you do if a CW station sends "QRS"?

Select	Answer
A	Repeat everything twice
B	Change frequency
C	Send slower
D	Increase your power

9. - G2D04

Which of the following describes an azimuthal projection map?

Select	Answer
A	A map that shows the number of degrees longitude that an amateur satellite appears to move westward at the equator with each orbit
B	A map that shows the angle at which an amateur satellite crosses the equator
C	A map that shows accurate land masses
D	A map that shows true bearings and distances from a particular location

10. - G2E03

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

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

11. - G3A12

What does the K-index indicate?

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

12. - G3B03

Which of the following applies when selecting a frequency for lowest attenuation when transmitting on HF?

Select	Answer
A	Select a frequency just above the LUF
B	Select a frequency just below the MUF
C	Select a frequency just above the critical frequency
D	Select a frequency just below the critical frequency

13. - G3C06

What is a characteristic of HF scatter signals?

Select	Answer
A	They have high intelligibility
B	All of these choices are correct
C	They have a wavering sound
D	They have very large swings in signal strength

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 increase overall efficiency
C	To reduce distortion due to excessive drive
D	To balance the transmitter audio frequency response

15. - G4B14

What is an instance in which the use of an instrument with analog readout may be preferred over an instrument with a digital readout?

Select	Answer
A	When testing logic circuits
B	When measuring the frequency of an oscillator
C	When high precision is desired
D	When adjusting tuned circuits

16. - G4C12

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

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

17. - G4D03

Which of the following can be the result of an incorrectly adjusted speech processor?

Select	Answer
A	Excessive background pickup
B	Distorted speech
C	Splatter
D	All of these choices are correct

18. - G4E01

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

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

19. - G5A01

What is impedance?

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

20. - G5B10

What percentage of power loss would result from a transmission line loss of 1 dB?

Select	Answer
A	12.2 percent
B	20.5 percent
C	25.9 percent
D	10.9 percent

21. - G5C11

What is the inductance of a 20 millihenry inductor connected in series with a 50 millihenry inductor?

Select	Answer
A	1000 millihenrys
B	0.07 millihenrys
C	70 millihenrys
D	14.3 millihenrys

22. - G6A04

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

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

23. - G6B09

Which of the following is a characteristic of a liquid crystal display?

Select	Answer
A	It has a wide viewing angle
B	It requires ambient or back lighting
C	It offers a wide dynamic range
D	All of these choices are correct

24. - G7A13

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

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

25. - G7B10

Which of the following is a characteristic of a Class A amplifier?

Select	Answer
A	High Efficiency
B	Low distortion
C	Low standby power
D	No need for bias

26. - G7C10

How is Digital Signal Processor filtering accomplished?

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

27. - G8A09

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

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

28. - G8B06

What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

Select	Answer
A	8 kHz
B	16 kHz
C	5 kHz
D	3 kHz

29. - G8C12

Which type of code is used for sending characters in a PSK31 signal?

Select	Answer
A	Viterbi
B	Binary
C	Volumetric
D	Varicode

30. - G9A14

What is the interaction between high standing wave ratio (SWR) and transmission line loss?

Select	Answer
A	High SWR reduces the relative effect of transmission line loss
B	If a transmission line is lossy, high SWR will increase the loss
C	There is no interaction between transmission line loss and SWR
D	High SWR makes it difficult to measure transmission line loss

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

32. - G9C13

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

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

33. - G9D08

Why is a Beverage antenna not used for transmitting?

Select	Answer
A	It has high losses compared to other types of antennas
B	Its impedance is too low for effective matching
C	All of these choices are correct
D	It has poor directivity

34. - G0A11

What precaution should you take if you install an indoor transmitting antenna?

Select	Answer
A	Make sure that MPE limits are not exceeded in occupied areas
B	Position the antenna along the edge of a wall to reduce parasitic radiation
C	Locate the antenna close to your operating position to minimize feed line radiation
D	Make sure the antenna is properly shielded

35. - G0B15

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

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

Figure G7-1