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. - G1A03

On which of the following bands is image transmission prohibited?

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

2. - G1B12

Who or what determines "good engineering and good amateur practice" as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

Select	Answer
A	The ITU
B	The FCC
C	The IEEE
D	The Control Operator

3. - G1C07

What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20-meter band?

Select	Answer
A	300 baud
B	56 kilobaud
C	19.6 kilobaud
D	1200 baud

4. - G1D11

If a person has an expired FCC issued amateur radio license of General Class or higher, what is required before they can receive a new license?

Select	Answer
A	The applicant must pass the current element 2 exam
B	There are no requirements other than being able to show a copy of the expired license
C	They must have a letter from the FCC showing they once held an amateur or commercial license
D	The applicant must be able to produce a copy of a page from a call book published in the USA showing his or her name and address

5. - G1E06

Which of the following applies in the event of interference between a coordinated repeater and an uncoordinated repeater?

Select	Answer
A	Both repeater licensees share equal responsibility to resolve the interference
B	The licensee of the uncoordinated repeater has primary responsibility to resolve the interference
C	The frequency coordinator bears primary responsibility to resolve the interference
D	The licensee of the coordinated repeater has primary responsibility to resolve the interference

6. - G2A11

What does the expression "CQ DX" usually indicate?

Select	Answer
A	A general call for any station
B	The caller is looking for any station outside their own country
C	The caller is listening for a station in Germany
D	A distress call

7. - G2B05

What is the customary minimum frequency separation between SSB signals under normal conditions?

Select	Answer
A	Approximately 10 kHz
B	Between 150 and 500 Hz
C	Approximately 3 kHz
D	Approximately 6 kHz

8. - G2C10

What does the Q signal "QRN" mean?

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

9. - G2D08

What is a reason why many amateurs keep a station log?

Select	Answer
A	To help with a reply if the FCC requests information
B	The ITU requires a log of all international third party traffic
C	The log provides evidence of operation needed to renew a license without retest
D	The ITU requires a log of all international contacts

10. - G2E13

Which communication system sometimes uses the Internet to transfer messages?

Select	Answer
A	Winlink
B	Skywarn
C	RTTY
D	ARES

11. - G3A08

Which of the following effects can a geomagnetic storm have on radio propagation?

Select	Answer
A	Improved high-latitude HF propagation
B	Degraded high-latitude HF propagation
C	Improved ground-wave propagation
D	Improved chances of UHF ducting

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

13. - G3C05

Why is long distance communication on the 40-meter, 60-meter, 80-meter and 160-meter bands more difficult during the day?

Select	Answer
A	The F layer absorbs signals at these frequencies during daylight hours
B	The D layer absorbs signals at these frequencies during daylight hours
C	The F layer is unstable during daylight hours
D	The E layer is unstable during daylight hours

14. - G4A11

Which of the following is a use for the IF shift control on a receiver?

Select	Answer
A	To avoid interference from stations very close to the receive frequency
B	To change frequency rapidly
C	To tune in stations that are slightly off frequency without changing your transmit frequency
D	To permit listening on a different frequency from that on which you are transmitting

15. - G4B15

What type of transmitter performance does a two-tone test analyze?

Select	Answer
A	Linearity
B	Percentage of frequency modulation
C	Percentage of suppression of carrier and undesired sideband for SSB
D	Percentage of carrier phase shift

16. - G4C01

Which of the following might be useful in reducing RF interference to audio frequency devices?

Select	Answer
A	Forward-biased diode
B	Bypass capacitor
C	Reverse-biased diode
D	Bypass inductor

17. - G4D05

How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?

Select	Answer
A	It is 20 times more powerful
B	It is 100 times more powerful
C	It is 10 times less powerful
D	It is 20 times less powerful

18. - G4E11

Which of the following is a disadvantage of using wind as the primary source of power for an emergency station?

Select	Answer
A	All of these choices are correct
B	A large energy storage system is needed to supply power when the wind is not blowing
C	The voltage and current ratings of such systems are not compatible with amateur equipment
D	The conversion efficiency from mechanical energy to electrical energy is less than 2 percent

19. - G5A02

What is reactance?

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

20. - G5B01

What dB change represents a two-times increase or decrease in power?

Select	Answer
A	Approximately 2 dB
B	Approximately 3 dB
C	Approximately 6 dB
D	Approximately 12 dB

21. - G5C17

What is the value in nanofarads (nF) of a 22,000 pF capacitor?

Select	Answer
A	22 nF
B	220 nF
C	0.22 nF
D	2.2 nF

22. - G6A15

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

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

23. - G6B05

What is meant when memory is characterized as non-volatile?

Select	Answer
A	It is resistant to radiation damage
B	It is resistant to high temperatures
C	The stored information is maintained even if power is removed
D	The stored information cannot be changed once written

24. - G7A03

What is the peak-inverse-voltage across the rectifiers in a full-wave bridge power supply?

Select	Answer
A	Double the normal peak output voltage of the power supply
B	One-quarter the normal output voltage of the power supply
C	Equal to the normal peak output voltage of the power supply
D	Half the normal output voltage of the power supply

25. - G7B08

How is the efficiency of an RF power amplifier determined?

Select	Answer
A	Divide the DC input power by the DC output power
B	Divide the RF output power by the DC input power
C	Add the RF input power to the DC output power
D	Multiply the RF input power by the reciprocal of the RF output power

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. - G8A11

What is the modulation envelope of an AM signal?

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

28. - G8B04

What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?

Select	Answer
A	Multiplier
B	Mixer
C	Reactance modulator
D	Pre-emphasis network

29. - G8C03

What part of a data packet contains the routing and handling information?

Select	Answer
A	Header
B	Preamble
C	Directory
D	Footer

30. - G9A06

In what units is RF feed line loss usually expressed?

Select	Answer
A	Ohms per 1000 feet
B	Ohms per 100 feet
C	Decibels per 100 feet
D	Decibels per 1000 feet

31. - G9B01

What is one disadvantage of a directly fed random-wire HF antenna?

Select	Answer
A	It is more effective on the lower HF bands than on the higher bands
B	You may experience RF burns when touching metal objects in your station
C	It produces only vertically polarized radiation
D	It must be longer than 1 wavelength

32. - G9C05

How does increasing boom length and adding directors affect a Yagi antenna?

Select	Answer
A	Beamwidth increases
B	Front to side ratio decreases
C	Gain increases
D	Front to back ratio decreases

33. - G9D04

What is the primary purpose of antenna traps?

Select	Answer
A	To permit multiband operation
B	To prevent out of band operation
C	To provide balanced feed point impedance
D	To notch spurious frequencies

34. - G0A09

What type of instrument can be used to accurately measure an RF field?

Select	Answer
A	An SWR meter with a peak-reading function
B	An oscilloscope with a high-stability crystal marker generator
C	A receiver with an S meter
D	A calibrated field strength meter with a calibrated antenna

35. - G0B14

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

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