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. - G1A07

Which of the following frequencies is within the General Class portion of the 20-meter phone band?

Select	Answer
A	14305 kHz
B	14105 kHz
C	14005 kHz
D	14405 kHz

2. - G1B05

When may music be transmitted by an amateur station?

Select	Answer
A	When it is transmitted on frequencies above 1215 MHz
B	At any time, as long as it produces no spurious emissions
C	When it is unintentionally transmitted from the background at the transmitter
D	When it is an incidental part of a manned space craft retransmission

3. - G1C05

Which of the following is a limitation on transmitter power on the 28 MHz band for a General Class control operator?

Select	Answer
A	1000 watts PEP output
B	2000 watts PEP output
C	100 watts PEP output
D	1500 watts PEP output

4. - G1D02

What license examinations may you administer when you are an accredited VE holding a General Class operator license?

Select	Answer
A	Technician only
B	Extra, General and Technician
C	General only
D	General and Technician

5. - G1E05

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

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

6. - G2A07

Which of the following statements is true of the single sideband voice mode?

Select	Answer
A	Only one sideband and the carrier are transmitted; the other sideband is suppressed
B	SSB is the only voice mode that is authorized on the 160-meter, 75-meter and 40-meter amateur bands
C	Only one sideband is transmitted; the other sideband and carrier are suppressed
D	SSB is the only voice mode that is authorized on the 20-meter, 15-meter, and 10-meter amateur bands

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 the President's War Emergency Powers have been invoked
C	When they seize your equipment for use in disaster communications
D	When they declare a temporary state of communication emergency

8. - G2C04

What does the Q signal "QRL?" mean?

Select	Answer
A	"Are you listening only for a specific station?"
B	"Will you keep the frequency clear?"
C	"Are you busy?", or "Is this frequency in use?"
D	"Are you operating full break-in" or "Can you operate full break-in?"

9. - G2D06

How is a directional antenna pointed when making a "long-path" contact with another station?

Select	Answer
A	Toward the rising Sun
B	180 degrees from its short-path heading
C	Toward the north
D	Along the gray line

10. - G2E03

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

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

11. - G3A14

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

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

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	180 miles
C	2,500 miles
D	1,200 miles

13. - G3C07

What makes HF scatter signals often sound distorted?

Select	Answer
A	Ground waves are absorbing much of the signal
B	The ionospheric layer involved is unstable
C	The E-region is not present
D	Energy is scattered into the skip zone through several different radio wave paths

14. - G4A12

Which of the following is a common use for the dual VFO feature on a transceiver?

Select	Answer
A	To permit monitoring of two different frequencies
B	To facilitate computer interface
C	To allow transmitting on two frequencies at once
D	To permit full duplex operation, that is transmitting and receiving at the same time

15. - G4B03

Which of the following is the best instrument to use when checking the keying waveform of a CW transmitter?

Select	Answer
A	A sidetone monitor
B	A field strength meter
C	An oscilloscope
D	A wavemeter

16. - G4C03

What sound is heard from an audio device or telephone if there is interference from a nearby single sideband phone transmitter?

Select	Answer
A	A steady hum whenever the transmitter is on the air
B	Distorted speech
C	Clearly audible speech
D	On-and-off humming or clicking

17. - G4D03

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

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

18. - G4E08

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

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

19. - G5A10

What unit is used to measure impedance?

Select	Answer
A	Ohm
B	Volt
C	Watt
D	Ampere

20. - G5B03

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

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

21. - G5C12

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

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

22. - G6A13

Why is the polarity of applied voltages important for polarized capacitors?

Select	Answer
A	All of these choices are correct
B	Incorrect polarity can cause the capacitor to short-circuit
C	Reverse voltages can destroy the dielectric layer of an electrolytic capacitor
D	The capacitor could overheat and explode

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. - 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. - G7B09

What determines the frequency of an LC oscillator?

Select	Answer
A	The number of stages in the counter
B	The inductance and capacitance in the tank circuit
C	The number of stages in the divider
D	The time delay of the lag circuit

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	Balanced modulator
C	Discriminator
D	IF amplifier

27. - G8A11

What is the modulation envelope of an AM signal?

Select	Answer
A	Spurious signals that envelop nearby frequencies
B	The bandwidth of the modulated signal
C	The waveform created by connecting the peak values of the modulated signal
D	The carrier frequency that contains the signal

28. - G8B09

Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

Select	Answer
A	It improves impedance matching of the antenna
B	It is required by FCC rules
C	It results in the best signal to noise ratio
D	It minimizes power consumption in the receiver

29. - G8C01

Which of the following digital modes is designed to operate at extremely low signal strength on the HF bands?

Select	Answer
A	JT9 and JT65
B	RTTY
C	Clover
D	FSK441 and Hellschreiber

30. - G9A04

What might cause reflected power at the point where a feed line connects to an antenna?

Select	Answer
A	A difference between feed line impedance and antenna feed point impedance
B	Using more transmitter power than the antenna can handle
C	Operating an antenna at its resonant frequency
D	Feeding the antenna with unbalanced feed line

31. - G9B09

Which of the following is an advantage of a horizontally polarized as compared to a vertically polarized HF antenna?

Select	Answer
A	Lower ground reflection losses
B	Lower radiation resistance
C	Shorter Radials
D	Lower feed point impedance

32. - G9C04

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

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

33. - G9D09

Which of the following is an application for a Beverage antenna?

Select	Answer
A	Directional transmitting for low HF bands
B	Portable direction finding at lower HF frequencies
C	Portable direction finding at higher HF frequencies
D	Directional receiving for low HF bands

34. - G0A06

What precaution should be taken when installing a ground-mounted antenna?

Select	Answer
A	It should limited to 10 feet in height
B	It should be installed such that it is protected against unauthorized access
C	It should not be installed higher than you can reach
D	It should not be installed in a wet area

35. - G0B07

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

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