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. - G1A05

Which of the following frequencies is in the General Class portion of the 40-meter band?

Select	Answer
A	7.250 MHz
B	40.200 MHz
C	7.500 MHz
D	40.500 MHz

2. - G1B05

When may music be transmitted by an amateur station?

Select	Answer
A	When it is unintentionally transmitted from the background at the transmitter
B	When it is an incidental part of a manned space craft retransmission
C	When it is transmitted on frequencies above 1215 MHz
D	At any time, as long as it produces no spurious emissions

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	300 baud
C	1200 baud
D	19.6 kilobaud

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

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 coordinated repeater has primary 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	Both repeater licensees share equal responsibility to resolve the interference

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 "Break Break Break" and wait for a response
C	Say "CQ" followed by the call sign of either station
D	Say your call sign during a break between transmissions by the other stations

7. - G2B11

What frequency should be used to send a distress call?

Select	Answer
A	Only frequencies used by police, fire or emergency medical services
B	Whichever frequency has the best chance of communicating the distress message
C	Only frequencies that are within your operating privileges
D	Only frequencies authorized for RACES or ARES stations

8. - G2C09

What does the Q signal "QSL" mean?

Select	Answer
A	We have worked before
B	We have already confirmed by card
C	Send slower
D	I acknowledge receipt

9. - G2D01

What is the Amateur Auxiliary to the FCC?

Select	Answer
A	Amateur volunteers who use their station equipment to help civil defense organizations in times of emergency
B	Amateur volunteers who conduct frequency coordination for amateur VHF repeaters
C	Amateur volunteers who conduct amateur licensing examinations
D	Amateur volunteers who are formally enlisted to monitor the airwaves for rules violations

10. - G2E07

What segment of the 80-meter band is most commonly used for digital transmissions?

Select	Answer
A	3775 - 3825 kHz
B	3700 - 3750 kHz
C	3570 - 3600 kHz
D	3500 - 3525 kHz

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. - G3B03

Which of the following applies when selecting a frequency for lowest attenuation when transmitting on HF?

Select	Answer
A	Select a frequency just above the LUF
B	Select a frequency just above the critical frequency
C	Select a frequency just below the MUF
D	Select a frequency just below the critical frequency

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

14. - G4A11

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

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

15. - G4B08

Which of the following instruments may be used to monitor relative RF output when making antenna and transmitter adjustments?

Select	Answer
A	An antenna noise bridge
B	A multimeter
C	A field strength meter
D	A Q meter

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	Bypass inductor
D	Reverse-biased diode

17. - G4D07

How much must the power output of a transmitter be raised to change the S meter reading on a distant receiver from S8 to S9?

Select	Answer
A	Approximately 1.5 times
B	Approximately 8 times
C	Approximately 4 times
D	Approximately 2 times

18. - G4E06

What is one disadvantage of using a shortened mobile antenna as opposed to a full size antenna?

Select	Answer
A	Short antennas can only receive circularly polarized signals
B	Short antennas are more likely to cause distortion of transmitted signals
C	Harmonic radiation may increase
D	Operating bandwidth may be very limited

19. - G5A01

What is impedance?

Select	Answer
A	The inverse of resistance
B	The force of repulsion between two similar electric fields
C	The electric charge stored by a capacitor
D	The opposition to the flow of current in an AC circuit

20. - G5B04

How many watts of electrical power are used by a 12 VDC light bulb that draws 0.2 amperes?

Select	Answer
A	60 watts
B	24 watts
C	2.4 watts
D	6 watts

21. - G5C15

What is the total resistance of a 10 ohm, a 20 ohm, and a 50 ohm resistor connected in parallel?

Select	Answer
A	5.9 ohms
B	10000 ohms
C	0.17 ohms
D	80 ohms

22. - G6A11

Which of the following solid state devices is most like a vacuum tube in its general operating characteristics?

Select	Answer
A	A bipolar transistor
B	A varistor
C	A field effect transistor
D	A tunnel diode

23. - G6B12

Which of the following connectors would be a good choice for a serial data port?

Select	Answer
A	Type N
B	PL-259
C	DE-9
D	Type SMA

24. - G7A05

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

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

25. - G7B07

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

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

26. - G7C03

What circuit is used to process signals from the RF amplifier and local oscillator then send the result to the IF filter in a superheterodyne receiver?

Select	Answer
A	Balanced modulator
B	IF amplifier
C	Detector
D	Mixer

27. - G8A05

What type of modulation varies the instantaneous power level of the RF signal?

Select	Answer
A	Amplitude modulation
B	Phase modulation
C	Frequency modulation
D	Frequency shift keying

28. - G8B03

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

Select	Answer
A	Phase inverting
B	Synthesizing
C	Cancellation
D	Heterodyning

29. - G8C07

How does the receiving station respond to an ARQ data mode packet containing errors?

Select	Answer
A	It sends the packet back to the transmitting station
B	It requests the packet be retransmitted
C	It requests a change in transmitting protocol
D	It terminates the contact

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	If a transmission line is lossy, high SWR will increase the loss
D	High SWR reduces the relative effect of transmission line 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 radiation resistance
B	Lower ground reflection losses
C	Lower feed point impedance
D	Shorter Radials

32. - G9C18

What happens when the feed point of a quad antenna of any shape is moved from the midpoint of the top or bottom to the midpoint of either side?

Select	Answer
A	The radiated signal becomes circularly polarized
B	The polarization of the radiated signal changes from vertical to horizontal
C	The polarization of the radiated signal changes from horizontal to vertical
D	There is no change in polarization

33. - G9D11

Which of the following is a disadvantage of multiband antennas?

Select	Answer
A	They present low impedance on all design frequencies
B	They must be used with an antenna tuner
C	They must be fed with open wire line
D	They have poor harmonic rejection

34. - G0A09

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

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

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	All of these choices are correct
C	Ensure that all heavy tools are securely fastened to the belt D-ring
D	Never lean back and rely on the belt alone to support your weight