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. - G1A11

When General Class licensees are not permitted to use the entire voice portion of a particular band, which portion of the voice segment is generally available to them?

Select	Answer
A	The upper frequency end on frequencies below 7.3 MHz and the lower end on frequencies above 14.150 MHz
B	The lower frequency end
C	The lower frequency end on frequencies below 7.3 MHz and the upper end on frequencies above 14.150 MHz
D	The upper frequency end

2. - G1B06

When is an amateur station permitted to transmit secret codes?

Select	Answer
A	To control a space station
B	Only with Special Temporary Authorization from the FCC
C	During a declared communications emergency
D	Only when the information is of a routine, personal nature

3. - G1C06

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

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

5. - G1E04

Which of the following conditions require a licensed Amateur Radio operator to take specific steps to avoid harmful interference to other users or facilities?

Select	Answer
A	All of these choices are correct
B	When a station is transmitting spread spectrum emissions
C	When using a band where the Amateur Service is secondary
D	When operating within one mile of an FCC Monitoring Station

6. - G2A10

Which of the following statements is true of voice VOX operation versus PTT operation?

Select	Answer
A	It occupies less bandwidth
B	The received signal is more natural sounding
C	It provides more power output
D	It allows "hands free" operation

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

8. - G2C06

What does the term "zero beat" mean in CW operation?

Select	Answer
A	Matching the speed of the transmitting station
B	Matching your transmit frequency to the frequency of a received signal
C	Operating split to avoid interference on frequency
D	Sending without error

9. - G2D10

What is QRP operation?

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

10. - G2E04

What segment of the 20-meter band is most often used for digital transmissions?

Select	Answer
A	14.275 - 14.350 MHz
B	14.150 - 14.225 MHz
C	14.070 - 14.100 MHz
D	14.000 - 14.050 MHz

11. - G3A14

How are radio communications usually affected by the charged particles that reach the Earth from solar coronal holes?

Select	Answer
A	VHF/UHF ducting is disturbed
B	HF communications are improved
C	VHF/UHF ducting is improved
D	HF communications are disturbed

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

13. - G3C12

Which ionospheric layer is the most absorbent of long skip signals during daylight hours on frequencies below 10 MHz?

Select	Answer
A	The E layer
B	The F1 layer
C	The F2 layer
D	The D layer

14. - G4A15

Which of the following can be a symptom of transmitted RF being picked up by an audio cable carrying AFSK data signals between a computer and a transceiver?

Select	Answer
A	Frequent connection timeouts
B	The VOX circuit does not un-key the transmitter
C	The transmitter signal is distorted
D	All of these choices are correct

15. - G4B10

Which of the following can be determined with a directional wattmeter?

Select	Answer
A	RF interference
B	Radio wave propagation
C	Antenna front-to-back ratio
D	Standing wave ratio

16. - G4C11

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

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

17. - G4D06

Where is an S meter found?

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

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

20. - G5B03

How many watts of electrical power are used if 400 VDC is supplied to an 800 ohm load?

Select	Answer
A	0.5 watts
B	400 watts
C	3200 watts
D	200 watts

21. - G5C12

What is the capacitance of a 20 microfarad capacitor connected in series with a 50 microfarad capacitor?

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

22. - G6A15

Which of the following is an advantage of an electrolytic capacitor?

Select	Answer
A	Tight tolerance
B	High capacitance for a given volume
C	Inexpensive RF capacitor
D	Much less leakage than any other type

23. - G6B06

What kind of device is an integrated circuit operational amplifier?

Select	Answer
A	Digital
B	Programmable Logic
C	MMIC
D	Analog

24. - G7A02

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

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

25. - G7B03

Which of the following describes the function of a two input AND gate?

Select	Answer
A	Output is low when either or both inputs are high
B	Output is high only when both inputs are high
C	Output is low only when both inputs are high
D	Output is high when either or both inputs are low

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	Balanced modulator
B	Discriminator
C	IF amplifier
D	Detector

27. - G8A06

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

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

28. - G8B08

Why is it important to know the duty cycle of the mode you are using when transmitting?

Select	Answer
A	Some modes have high duty cycles which could exceed the transmitter's average power rating.
B	All of these choices are correct
C	To allow time for the other station to break in during a transmission
D	To aid in tuning your transmitter

29. - G8C07

How does the receiving station respond to an ARQ data mode packet containing errors?

Select	Answer
A	It terminates the contact
B	It requests the packet be retransmitted
C	It sends the packet back to the transmitting station
D	It requests a change in transmitting protocol

30. - G9A08

If the SWR on an antenna feed line is 5 to 1, and a matching network at the transmitter end of the feed line is adjusted to 1 to 1 SWR, what is the resulting SWR on the feed line?

Select	Answer
A	5 to 1
B	Between 1 to 1 and 5 to 1 depending on the reflected power at the transmitter
C	1 to 1
D	Between 1 to 1 and 5 to 1 depending on the characteristic impedance of the line

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

32. - G9C04

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

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

33. - G9D08

Why is a Beverage antenna not used for transmitting?

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

34. - G0A03

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

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

35. - G0B14

Which of the following is covered by the National Electrical Code?

Select	Answer
A	Electrical safety inside the ham shack
B	Acceptable bandwidth limits
C	Acceptable modulation limits
D	RF exposure limits of the human body