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. - G1A13

What is the appropriate action if, when operating on either the 30-meter or 60-meter bands, a station in the primary service interferes with your contact?

Select	Answer
A	Notify the FCCs regional Engineer in Charge of the interference
B	Increase your transmitter's power to overcome the interference
C	Attempt to contact the station and request that it stop the interference
D	Move to a clear frequency or stop transmitting

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

3. - G1C11

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 2-meter band?

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

4. - G1D04

Which of the following is a requirement for administering a Technician Class license examination?

Select	Answer
A	At least two General Class or higher VEs must be present
B	At least three VEs of Technician Class or higher must observe the examination
C	At least two General Class or higher VEs must be present, but only one need be Extra Class
D	At least three General Class or higher VEs must observe the examination

5. - G1E11

Which of the following is the FCC term for an unattended digital station that transfers messages to and from the Internet?

Select	Answer
A	Automatically controlled digital station
B	Locally controlled station
C	Robotically controlled station
D	Fail-safe digital station

6. - G2A06

Which of the following is an advantage when using single sideband as compared to other analog voice modes on the HF amateur bands?

Select	Answer
A	Less subject to interference from atmospheric static crashes
B	Less bandwidth used and greater power efficiency
C	Very high fidelity voice modulation
D	Ease of tuning on receive and immunity to impulse noise

7. - G2B01

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

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

8. - G2C05

What is the best speed to use when answering a CQ in Morse code?

Select	Answer
A	The fastest speed at which you are comfortable copying
B	A slow speed until contact is established
C	The speed at which the CQ was sent
D	At the standard calling speed of 5 wpm

9. - G2D09

What information is traditionally contained in a station log?

Select	Answer
A	Band and/or frequency of the contact
B	All of these choices are correct
C	Date and time of contact
D	Call sign of station contacted and the signal report given

10. - G2E05

What is the standard sideband used to generate a JT65 or JT9 digital signal when using AFSK in any amateur band?

Select	Answer
A	USB
B	SSB
C	LSB
D	DSB

11. - G3A07

At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?

Select	Answer
A	Only at the minimum point of the solar cycle
B	At the summer solstice
C	At any point in the solar cycle
D	Only at the maximum point of the solar cycle

12. - G3B11

What happens to HF propagation when the LUF exceeds the MUF?

Select	Answer
A	HF communications over the path are enhanced
B	No HF radio frequency will support ordinary sky-wave communications over the path
C	Double hop propagation along the path is more common
D	Propagation over the path on all HF frequencies is enhanced

13. - G3C11

Which of the following antenna types will be most effective for skip communications on 40-meters during the day?

Select	Answer
A	A vertical antenna
B	A right-hand circularly polarized antenna
C	A left-hand circularly polarized antenna
D	A horizontal dipole placed between 1/8 and 1/4 wavelength above the ground

14. - G4A02

What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver?

Select	Answer
A	Accidental out of band operation can be prevented
B	More stations can be accommodated within a given signal passband
C	It may be possible to reduce or eliminate interference from other signals
D	Interference from impulse noise will be eliminated

15. - G4B14

What is an instance in which the use of an instrument with analog readout may be preferred over an instrument with a digital readout?

Select	Answer
A	When testing logic circuits
B	When high precision is desired
C	When adjusting tuned circuits
D	When measuring the frequency of an oscillator

16. - G4C02

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

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

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

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. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Ampere
B	Farad
C	Siemens
D	Ohm

20. - G5B03

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

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

21. - G5C17

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

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

22. - G6A07

What are the stable operating points for a bipolar transistor used as a switch in a logic circuit?

Select	Answer
A	Its enhancement and depletion modes
B	Its saturation and cutoff regions
C	Its active region (between the cutoff and saturation regions)
D	Its peak and valley current points

23. - G6B16

Which of the following describes a type N connector?

Select	Answer
A	A threaded connector used for hydraulic systems
B	An audio connector used in surround-sound installations
C	A moisture-resistant RF connector useful to 10 GHz
D	A small bayonet connector used for data circuits

24. - G7A05

What portion of the AC cycle is converted to DC by a half-wave rectifier?

Select	Answer
A	90 degrees
B	360 degrees
C	180 degrees
D	270 degrees

25. - G7B07

What are the basic components of virtually all sine wave oscillators?

Select	Answer
A	A circulator and a filter operating in a feed-forward loop
B	A frequency multiplier and a mixer
C	An amplifier and a divider
D	A filter and an amplifier operating in a feedback loop

26. - G7C09

Which of the following is needed for a Digital Signal Processor IF filter?

Select	Answer
A	An analog to digital converter
B	All of the these choices are correct
C	A digital to analog converter
D	A digital processor chip

27. - G8A10

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

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

28. - G8B03

What is another term for the mixing of two RF signals?

Select	Answer
A	Synthesizing
B	Phase inverting
C	Cancellation
D	Heterodyning

29. - G8C05

In the PACTOR protocol, what is meant by an NAK response to a transmitted packet?

Select	Answer
A	The entire file has been received correctly
B	The receiver is requesting the packet be retransmitted
C	The receiver is busy decoding the packet
D	The receiver is reporting the packet was received without error

30. - G9A15

What is the effect of transmission line loss on SWR measured at the input to the line?

Select	Answer
A	Transmission line loss does not affect the SWR measurement
B	The higher the transmission line loss, the more the SWR will read artificially high
C	The higher the transmission line loss, the more the SWR will read artificially low
D	The higher the transmission line loss, the more accurate the SWR measurement will be

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 ground reflection losses
C	Lower radiation resistance
D	Shorter Radials

32. - G9C11

What is the purpose of a gamma match used with Yagi antennas?

Select	Answer
A	To increase the main lobe gain
B	To match the relatively high feed point impedance to 50 ohms
C	To match the relatively low feed point impedance to 50 ohms
D	To increase the front-to-back ratio

33. - G9D05

What is an advantage of vertical stacking of horizontally polarized Yagi antennas?

Select	Answer
A	It narrows the main lobe in azimuth
B	It allows simultaneous vertical and horizontal polarization
C	It narrows the main lobe in elevation
D	It allows quick selection of vertical or horizontal polarization

34. - G0A05

What must you do if an evaluation of your station shows RF energy radiated from your station exceeds permissible limits?

Select	Answer
A	File an Environmental Impact Statement (EIS-97) with the FCC
B	All of these choices are correct
C	Secure written permission from your neighbors to operate above the controlled MPE limits
D	Take action to prevent human exposure to the excessive RF fields

35. - G0B13

What must you do when powering your house from an emergency generator?

Select	Answer
A	Insure that all lightning grounds are disconnected
B	Disconnect the incoming utility power feed
C	All of these choices are correct
D	Insure that the generator is not grounded