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. - G1A02

On which of the following bands is phone operation prohibited?

Select	Answer
A	160 meters
B	12 meters
C	17 meters
D	30 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 FCC
B	The IEEE
C	The ITU
D	The Control Operator

3. - G1C06

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

Select	Answer
A	1500 watts PEP output
B	1200 watts PEP output
C	200 watts PEP output
D	1000 watts PEP output

4. - G1D01

Who may receive credit for the elements represented by an expired amateur radio license?

Select	Answer
A	Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC
B	Any person who can demonstrate that they once held an FCC issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC
C	Anyone who held an FCC issued amateur radio license that has been expired for not less than 5 years and not more than 15 years
D	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license

5. - G1E06

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

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

6. - G2A02

Which of the following modes is most commonly used for voice communications on the 160-meter, 75-meter, and 40-meter bands?

Select	Answer
A	Double sideband
B	Lower sideband
C	Vestigial sideband
D	Upper sideband

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	150 to 500 Hz
C	3 to 6 kHz
D	1 to 3 kHz

8. - G2C06

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

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

9. - G2D05

When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?

Select	Answer
A	Only when the foreign country has a formal third party agreement filed with the FCC
B	When the contact is with amateurs in any country as long as the communication is conducted in English
C	Only when the foreign country is a member of the International Amateur Radio Union
D	When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications

10. - G2E14

What could be wrong if you cannot decode an RTTY or other FSK signal even though it is apparently tuned in properly?

Select	Answer
A	You may have selected the wrong baud rate
B	All of these choices are correct
C	You may be listening on the wrong sideband
D	The mark and space frequencies may be reversed

11. - G3A12

What does the K-index indicate?

Select	Answer
A	The relative position of sunspots on the surface of the Sun
B	The short term stability of the Earth's magnetic field
C	The solar radio flux at Boulder, Colorado
D	The stability of the Sun's magnetic field

12. - G3B08

What does MUF stand for?

Select	Answer
A	The Minimum Usable Frequency during a 24 hour period
B	The Maximum Usable Frequency during a 24 hour period
C	The Minimum Usable Frequency for communications between two points
D	The Maximum Usable Frequency for communications between two points

13. - G3C10

Which of the following might be an indication that signals heard on the HF bands are being received via scatter propagation?

Select	Answer
A	The signal is heard on a frequency above the Maximum Usable Frequency
B	The signal is heard on a frequency below the Maximum Usable Frequency
C	The communication is during a sunspot maximum
D	The communication is during a sudden ionospheric disturbance

14. - G4A06

What type of device is often used to match transmitter output impedance to an impedance not equal to 50 ohms?

Select	Answer
A	Balanced modulator
B	SWR Bridge
C	Antenna coupler or antenna tuner
D	Q Multiplier

15. - G4B01

What item of test equipment contains horizontal and vertical channel amplifiers?

Select	Answer
A	An oscilloscope
B	An ammeter
C	A signal generator
D	An ohmmeter

16. - G4C05

What might be the problem if you receive an RF burn when touching your equipment while transmitting on an HF band, assuming the equipment is connected to a ground rod?

Select	Answer
A	The ground wire has high impedance on that frequency
B	Flat braid rather than round wire has been used for the ground wire
C	Insulated wire has been used for the ground wire
D	The ground rod is resonant

17. - G4D09

What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

Select	Answer
A	14.3455 to 14.3485 MHz
B	14.344 to 14.347 MHz
C	14.347 to 14.350 MHz
D	14.347 to 14.647 MHz

18. - G4E01

What is the purpose of a capacitance hat on a mobile antenna?

Select	Answer
A	To increase the power handling capacity of a whip antenna
B	To electrically lengthen a physically short antenna
C	To allow automatic band changing
D	To allow remote tuning

19. - G5A05

How does an inductor react to AC?

Select	Answer
A	As the frequency of the applied AC increases, the reactance increases
B	As the frequency of the applied AC increases, the reactance decreases
C	As the amplitude of the applied AC increases, the reactance decreases
D	As the amplitude of the applied AC increases, the reactance increases

20. - G5B05

How many watts are dissipated when a current of 7.0 milliamperes flows through 1.25 kilohms resistance?

Select	Answer
A	Approximately 61 watts
B	Approximately 11 milliwatts
C	Approximately 61 milliwatts
D	Approximately 11 watts

21. - G5C18

What is the value in microfarads of a 4700 nanofarad (nF) capacitor?

Select	Answer
A	0.47 microfarads
B	4.7 microfarads
C	47 microfarads
D	47,000 microfarads

22. - G6A02

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

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

23. - G6B18

What is a type SMA connector?

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

24. - G7A12

Which symbol in Figure G7-1 represents a multiple-winding transformer?

Select	Answer
A	Symbol 1
B	Symbol 7
C	Symbol 4
D	Symbol 6

25. - G7B01

Complex digital circuitry can often be replaced by what type of integrated circuit?

Select	Answer
A	Microcontroller
B	Window comparator
C	Charge-coupled device
D	Phase detector

26. - G7C04

What circuit is used to combine signals from the IF amplifier and BFO and send the result to the AF amplifier in some single sideband receivers?

Select	Answer
A	Balanced modulator
B	RF oscillator
C	Product detector
D	IF filter

27. - G8A01

How is an FSK signal generated?

Select	Answer
A	By using a transceiver's computer data interface protocol to change frequencies
B	By keying an FM transmitter with a sub-audible tone
C	By changing an oscillator's frequency directly with a digital control signal
D	By reconfiguring the CW keying input to act as a tone generator

28. - G8B01

What receiver stage combines a 14.250 MHz input signal with a 13.795 MHz oscillator signal to produce a 455 kHz intermediate frequency (IF) signal?

Select	Answer
A	VFO
B	Discriminator
C	Mixer
D	BFO

29. - G8C01

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

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

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

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

32. - G9C13

Approximately how long is each side of the driven element of a quad antenna?

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

33. - G9D01

What does the term NVIS mean as related to antennas?

Select	Answer
A	Non-Varying Indicated SWR
B	Nearly Vertical Inductance System
C	Near Vertical Incidence sky-wave
D	Non-Varying Impedance Smoothing

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 not be installed higher than you can reach
C	It should be installed such that it is protected against unauthorized access
D	It should not be installed in a wet area

35. - G0B10

Which of the following is a danger from lead-tin solder?

Select	Answer
A	High voltages can cause lead-tin solder to disintegrate suddenly
B	Tin in the solder can "cold flow" causing shorts in the circuit
C	Lead can contaminate food if hands are not washed carefully after handling the solder
D	RF energy can convert the lead into a poisonous gas

Figure G7-1