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. - G1A14

In what ITU region is operation in the 7.175 to 7.300 MHz band permitted for a control operator holding an FCC issued General Class license?

Select	Answer
A	Region 2
B	Region 1
C	Region 3
D	All three regions

2. - G1B11

How does the FCC require an amateur station to be operated in all respects not specifically covered by the Part 97 rules?

Select	Answer
A	In conformance with the rules of the IARU
B	In conformance with Amateur Radio custom
C	All of these choices are correct
D	In conformance with good engineering and good amateur practice

3. - G1C04

Which of the following limitations apply to transmitter power on every amateur band?

Select	Answer
A	Power must be limited to 200 watts when transmitting between 14.100 MHz and 14.150 MHz
B	Power should be limited as necessary to avoid interference to another radio service on the frequency
C	Only the minimum power necessary to carry out the desired communications should be used
D	Effective radiated power cannot exceed 1500 watts

4. - G1D06

When must you add the special identifier "AG" after your call sign if you are a Technician Class licensee and have a CSCE for General Class operator privileges, but the FCC has not yet posted your upgrade on its website ?

Select	Answer
A	Whenever you operate using General Class frequency privileges
B	Whenever you operate using Technician frequency privileges
C	A special identifier is not required as long as your General Class license application has been filed with the FCC
D	Whenever you operate on any amateur frequency

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	Any messages, as long as the text of the message is recorded in the station log
C	Only messages relating to Amateur Radio or remarks of a personal character, or messages relating to emergencies or disaster relief
D	Only messages for other licensed amateurs

6. - G2A08

Which of the following is a recommended way to break into a contact when using phone?

Select	Answer
A	Say "QRZ" several times followed by your call sign
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 "Break Break Break" and wait for a response

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

8. - G2C10

What does the Q signal "QRN" mean?

Select	Answer
A	Send more slowly
B	Zero beat my signal
C	Stop sending
D	I am troubled by static

9. - G2D07

Which of the following is required by the FCC rules when operating in the 60-meter band?

Select	Answer
A	You must keep a record of the manufacturer of your equipment and the antenna used
B	You must keep a record of the date, time, frequency, power level and stations worked
C	If you are using other than a dipole antenna, you must keep a record of the gain of your antenna
D	You must keep a record of all third party traffic

10. - G2E01

Which mode is normally used when sending an RTTY signal via AFSK with an SSB transmitter?

Select	Answer
A	USB
B	CW
C	LSB
D	DSB

11. - G3A03

Approximately how long does it take the increased ultraviolet and X-ray radiation from solar flares to affect radio propagation on the Earth?

Select	Answer
A	1 to 2 hours
B	20 to 40 hours
C	8 minutes
D	28 days

12. - G3B12

What factor or factors affect the MUF?

Select	Answer
A	Time of day and season
B	Solar radiation and ionospheric disturbances
C	Path distance and location
D	All of these choices are correct

13. - G3C09

What type of radio wave propagation allows a signal to be detected at a distance too far for ground wave propagation but too near for normal sky-wave propagation?

Select	Answer
A	Sporadic-E skip
B	Faraday rotation
C	Scatter
D	Short-path skip

14. - G4A10

What is the purpose of an electronic keyer?

Select	Answer
A	Automatic generation of strings of dots and dashes for CW operation
B	Computer interface for PSK and RTTY operation
C	VOX operation
D	Automatic transmit/receive switching

15. - G4B02

Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

Select	Answer
A	An oscilloscope uses less power
B	Complex impedances can be easily measured
C	Complex waveforms can be measured
D	Input impedance is much lower

16. - G4C02

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

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

17. - G4D03

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

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

18. - G4E07

Which of the following may cause interference to be heard in the receiver of an HF radio installed in a recent model vehicle?

Select	Answer
A	The vehicle control computer
B	All of these choices are correct
C	The fuel delivery system
D	The battery charging system

19. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Ohm
B	Ampere
C	Siemens
D	Farad

20. - G5B13

What is the output PEP of an unmodulated carrier if an average reading wattmeter connected to the transmitter output indicates 1060 watts?

Select	Answer
A	1500 watts
B	2120 watts
C	530 watts
D	1060 watts

21. - G5C04

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

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

22. - G6A13

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

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

23. - G6B08

How is an LED biased when emitting light?

Select	Answer
A	Beyond cutoff
B	Forward Biased
C	At the Zener voltage
D	Reverse Biased

24. - G7A08

Which of the following is an advantage of a switchmode power supply as compared to a linear power supply?

Select	Answer
A	Fewer circuit components are required
B	All of these choices are correct
C	Faster switching time makes higher output voltage possible
D	High frequency operation allows the use of smaller components

25. - G7B11

For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?

Select	Answer
A	CW
B	AM
C	SSB
D	All of these choices are correct

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	Detector
D	IF amplifier

27. - G8A10

What is meant by the term flat-topping when referring to a single sideband phone transmission?

Select	Answer
A	The transmitter's carrier is properly suppressed
B	The transmitter's automatic level control (ALC) is properly adjusted
C	Signal distortion caused by insufficient collector current
D	Signal distortion caused by excessive drive

28. - G8B07

What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?

Select	Answer
A	416.7 Hz
B	5 kHz
C	101.75 Hz
D	60 kHz

29. - G8C09

What does the number 31 represent in "PSK31"?

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

30. - G9A09

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 200 ohm impedance?

Select	Answer
A	1:4
B	4:1
C	1:2
D	2:1

31. - G9B10

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

Select	Answer
A	32 feet
B	24 feet
C	16 feet
D	8 feet

32. - G9C09

How does the gain of two 3-element horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single 3-element Yagi?

Select	Answer
A	Approximately 1.5 dB higher
B	Approximately 3 dB higher
C	Approximately 6 dB higher
D	Approximately 9 dB higher

33. - G9D06

Which of the following is an advantage of a log periodic antenna?

Select	Answer
A	Polarization diversity
B	Wide bandwidth
C	Higher gain per element than a Yagi antenna
D	Harmonic suppression

34. - G0A07

What effect does transmitter duty cycle have when evaluating RF exposure?

Select	Answer
A	A lower transmitter duty cycle permits greater short-term exposure levels
B	Low duty cycle transmitters are exempt from RF exposure evaluation requirements
C	High duty cycle transmitters are exempt from RF exposure requirements
D	A higher transmitter duty cycle permits greater short-term exposure levels

35. - G0B07

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

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