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. - G1A01

On which of the following bands is a General Class license holder granted all amateur frequency privileges?

Select	Answer
A	160, 60, 30, 17, 12, and 10 meters
B	160, 80, 40, and 10 meters
C	160, 30, 17, 15, 12, and 10 meters
D	60, 20, 17, and 12 meters

2. - G1B01

What is the maximum height above ground to which an antenna structure may be erected without requiring notification to the FAA and registration with the FCC, provided it is not at or near a public use airport?

Select	Answer
A	300 feet
B	200 feet
C	50 feet
D	100 feet

3. - G1C07

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

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

4. - G1D02

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

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

5. - G1E01

Which of the following would disqualify a third party from participating in stating a message over an amateur station?

Select	Answer
A	The third party is speaking in a language other than English
B	The third party's amateur license has been revoked and not reinstated
C	The third party is not a U.S. citizen
D	The third party is a licensed amateur

6. - G2A08

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

Select	Answer
A	Say your call sign during a break between transmissions by the other stations
B	Say "CQ" followed by the call sign of either station
C	Say "QRZ" several times followed by your call sign
D	Say "Break Break Break" and wait for a response

7. - G2B01

Which of the following is true concerning access to frequencies in non-emergency situations?

Select	Answer
A	Nets always have priority
B	Except during FCC declared emergencies, no one has priority access to frequencies
C	QSOs in progress always have priority
D	Contest operations must always yield to non-contest use of frequencies

8. - G2C11

What does the Q signal "QRV" mean?

Select	Answer
A	There is interference on the frequency
B	I am quitting for the day
C	I am ready to receive messages
D	You are sending too fast

9. - G2D02

Which of the following are objectives of the Amateur Auxiliary?

Select	Answer
A	To coordinate repeaters for efficient and orderly spectrum usage
B	To provide emergency and public safety communications
C	To conduct efficient and orderly amateur licensing examinations
D	To encourage self-regulation and compliance with the rules by radio amateur operators

10. - G2E01

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

Select	Answer
A	LSB
B	DSB
C	USB
D	CW

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

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

13. - G3C02

Where on the Earth do ionospheric layers reach their maximum height?

Select	Answer
A	Where the Sun has just set
B	Where the Sun is on the opposite side of the Earth
C	Where the Sun is rising
D	Where the Sun is overhead

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 permit listening on a different frequency from that on which you are transmitting
C	To change frequency rapidly
D	To tune in stations that are slightly off frequency without changing your transmit frequency

15. - G4B04

What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?

Select	Answer
A	The local oscillator of the transmitter
B	The attenuated RF output of the transmitter
C	The transmitter balanced mixer output
D	An external RF oscillator

16. - G4C07

What is one good way to avoid unwanted effects of stray RF energy in an amateur station?

Select	Answer
A	Use a ground loop for best conductivity
B	Install an RF filter in series with the ground wire
C	Connect all equipment grounds together
D	Install a few ferrite beads on the ground wire where it connects to your station

17. - G4D08

What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Select	Answer
A	7.175 to 7.178 MHz
B	7.178 to 7.181 MHz
C	7.1765 to 7.1795 MHz
D	7.178 to 7.184 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 allow automatic band changing
C	To allow remote tuning
D	To electrically lengthen a physically short antenna

19. - G5A07

What happens when the impedance of an electrical load is equal to the output impedance of a power source, assuming both impedances are resistive?

Select	Answer
A	No current can flow through the circuit
B	The electrical load is shorted
C	The source delivers minimum power to the load
D	The source can deliver maximum power to the load

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 milliwatts
B	Approximately 61 watts
C	Approximately 11 watts
D	Approximately 11 milliwatts

21. - G5C16

Why is the conductor of the primary winding of many voltage step up transformers larger in diameter than the conductor of the secondary winding?

Select	Answer
A	To prevent parasitic oscillations due to resistive losses in the primary
B	To improve the coupling between the primary and secondary
C	To insure that the volume of the primary winding is equal to the volume of the secondary winding
D	To accommodate the higher current of the primary

22. - G6A05

What is the approximate junction threshold voltage of a conventional silicon diode?

Select	Answer
A	1.0 volts
B	0.1 volt
C	0.3 volts
D	0.7 volts

23. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Multi Megabyte Integrated Circuit
B	Mode Modulated Integrated Circuit
C	Military Manufactured Integrated Circuit
D	Monolithic Microwave Integrated Circuit

24. - G7A08

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

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

25. - G7B12

Which of these classes of amplifiers has the highest efficiency?

Select	Answer
A	Class AB
B	Class C
C	Class A
D	Class B

26. - G7C07

What is the simplest combination of stages that implement a superheterodyne receiver?

Select	Answer
A	RF amplifier, mixer, IF discriminator
B	RF amplifier, detector, audio amplifier
C	HF oscillator, prescaler, audio amplifier
D	HF oscillator, mixer, detector

27. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Excessive bandwidth
B	Frequency drift
C	Insufficient bandwidth
D	Insufficient audio

28. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

Select	Answer
A	Symbol rate and bandwidth are not related
B	Bandwidth is always half the symbol rate
C	Higher symbol rates require wider bandwidth
D	Lower symbol rates require wider bandwidth

29. - G8C08

Which of the following statements is true about PSK31?

Select	Answer
A	Varicode Error Correction is used to ensure accurate message reception
B	Upper case letters make the signal stronger
C	Upper case letters use longer Varicode signals and thus slow down transmission
D	Higher power is needed as compared to RTTY for similar error rates

30. - G9A14

What is the interaction between high standing wave ratio (SWR) and transmission line loss?

Select	Answer
A	There is no interaction between transmission line loss and SWR
B	High SWR makes it difficult to measure transmission line loss
C	High SWR reduces the relative effect of transmission line loss
D	If a transmission line is lossy, high SWR will increase the loss

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	Shorter Radials
C	Lower feed point impedance
D	Lower radiation resistance

32. - G9C16

How does the gain of a two-element delta-loop beam compare to the gain of a two-element quad antenna?

Select	Answer
A	3 dB lower
B	About the same
C	2.54 dB higher
D	3 dB higher

33. - G9D03

At what height above ground is an NVIS antenna typically installed?

Select	Answer
A	As close to one wavelength as possible
B	Height is not critical as long as it is significantly more than 1/2 wavelength
C	As close to 1/2 wavelength as possible
D	Between 1/10 and 1/4 wavelength

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	All of these choices are correct
C	By calculation based on FCC OET Bulletin 65
D	By measurement of field strength using calibrated equipment

35. - G0B01

Which wire or wires in a four-conductor connection should be attached to fuses or circuit breakers in a device operated from a 240 VAC single phase source?

Select	Answer
A	All wires
B	Only the ground wire
C	Only the two wires carrying voltage
D	Only the neutral wire