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	12 meters
C	160 meters
D	20 meters

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. - G1C03

What is the maximum bandwidth permitted by FCC rules for Amateur Radio stations transmitting on USB frequencies in the 60-meter band?

Select	Answer
A	2.8 kHz
B	3 kHz
C	1.8 kHz
D	5.6 kHz

4. - G1D07

Volunteer Examiners are accredited by what organization?

Select	Answer
A	A Volunteer Examiner Coordinator
B	The Wireless Telecommunications Bureau
C	The Universal Licensing System
D	The Federal Communications Commission

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 only
C	English, Spanish, French, or German
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	Single sideband
C	Frequency modulation
D	Phase modulation

7. - G2B09

Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

Select	Answer
A	A person holding an FCC issued amateur operator license or an appropriate government official
B	Only a RACES net control operator
C	Only a person holding an FCC issued amateur operator license
D	Any control operator when normal communication systems are operational

8. - G2C07

When sending CW, what does a "C" mean when added to the RST report?

Select	Answer
A	Report was read from an S meter rather than estimated
B	Chirpy or unstable signal
C	100 percent copy
D	Key clicks

9. - G2D09

What information is traditionally contained in a station log?

Select	Answer
A	Call sign of station contacted and the signal report given
B	All of these choices are correct
C	Date and time of contact
D	Band and/or frequency of the contact

10. - G2E06

What is the most common frequency shift for RTTY emissions in the amateur HF bands?

Select	Answer
A	425 Hz
B	85 Hz
C	170 Hz
D	850 Hz

11. - G3A16

What is a possible benefit to radio communications resulting from periods of high geomagnetic activity?

Select	Answer
A	Auroras that can reflect VHF signals
B	Higher signal strength for HF signals passing through the polar regions
C	Improved HF long path propagation
D	Reduced long delayed echoes

12. - G3B10

What is the approximate maximum distance along the Earth's surface that is normally covered in one hop using the E region?

Select	Answer
A	12,000 miles
B	2,500 miles
C	1,200 miles
D	180 miles

13. - G3C03

Why is the F2 region mainly responsible for the longest distance radio wave propagation?

Select	Answer
A	Because it does not absorb radio waves as much as other ionospheric regions
B	Because it is the highest ionospheric region
C	All of these choices are correct
D	Because it is the densest ionospheric layer

14. - G4A03

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

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

15. - G4B05

Why is high input impedance desirable for a voltmeter?

Select	Answer
A	It improves the resolution of the readings
B	It improves the frequency response
C	It decreases battery consumption in the meter
D	It decreases the loading on circuits being measured

16. - G4C04

What is the effect on an audio device or telephone system if there is interference from a nearby CW transmitter?

Select	Answer
A	A CW signal at a nearly pure audio frequency
B	Severely distorted audio
C	A chirpy CW signal
D	On-and-off humming or clicking

17. - G4D02

Which of the following describes how a speech processor affects a transmitted single sideband phone signal?

Select	Answer
A	It increases peak power
B	It increases average power
C	It reduces harmonic distortion
D	It reduces intermodulation distortion

18. - G4E08

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

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

19. - G5A02

What is reactance?

Select	Answer
A	A property of ideal resistors in AC circuits
B	Opposition to the flow of alternating current caused by capacitance or inductance
C	A large spark produced at switch contacts when an inductor is de-energized
D	Opposition to the flow of direct current caused by 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	2500 watts
C	625 watts
D	5000 watts

21. - G5C04

What is the total resistance of three 100 ohm resistors in parallel?

Select	Answer
A	0.33 ohms
B	300 ohms
C	0.30 ohms
D	33.3 ohms

22. - G6A02

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

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

23. - G6B18

What is a type SMA connector?

Select	Answer
A	A small threaded connector suitable for signals up to several GHz
B	A type of push-on connector intended for high voltage applications
C	A connector designed for serial multiple access signals
D	A large bayonet connector usable at power levels in excess of 1 KW

24. - G7A11

Which symbol in figure G7-1 represents an NPN junction transistor?

Select	Answer
A	Symbol 2
B	Symbol 11
C	Symbol 7
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 differential spurious phasing
D	By using direct signal phasing

27. - G8A06

What is one advantage of carrier suppression in a single sideband phone transmission versus full carrier amplitude modulation?

Select	Answer
A	Available transmitter power can be used more effectively
B	Audio fidelity is improved
C	Greater modulation percentage is obtainable with lower distortion
D	Simpler receiving equipment can be used

28. - G8B03

What is another term for the mixing of two RF signals?

Select	Answer
A	Cancellation
B	Heterodyning
C	Synthesizing
D	Phase inverting

29. - G8C02

How many data bits are sent in a single PSK31 character?

Select	Answer
A	The number varies
B	5
C	7
D	8

30. - G9A12

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 25 ohm impedance?

Select	Answer
A	2.5:1
B	You cannot determine SWR from impedance values
C	1.25:1
D	2:1

31. - G9B03

What happens to the feed point impedance of a ground plane antenna when its radials are changed from horizontal to sloping downward?

Select	Answer
A	It decreases
B	It increases
C	It reaches a maximum at an angle of 45 degrees
D	It stays the same

32. - G9C02

What is the approximate length of the driven element of a Yagi antenna?

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

33. - G9D10

Which of the following describes a Beverage antenna?

Select	Answer
A	A very long and low directional receiving antenna
B	A helical antenna for space reception
C	A broad-band mobile antenna
D	A vertical antenna

34. - G0A03

How can you determine that your station complies with FCC RF exposure regulations?

Select	Answer
A	By calculation based on FCC OET Bulletin 65
B	All of these choices are correct
C	By calculation based on computer modeling
D	By measurement of field strength using calibrated equipment

35. - G0B04

Which of the following is a primary reason for not placing a gasoline-fueled generator inside an occupied area?

Select	Answer
A	Lack of nitrogen for adequate combustion
B	Lack of oxygen for adequate combustion
C	Danger of carbon monoxide poisoning
D	Danger of engine over torque

Figure G7-1