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. - G1A05

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

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

2. - G1B03

Which of the following is a purpose of a beacon station as identified in the FCC rules?

Select	Answer
A	Observation of propagation and reception
B	Transmission of bulletins of general interest to Amateur Radio licensees
C	Automatic identification of repeaters
D	Identifying net frequencies

3. - G1C05

Which of the following is a limitation on transmitter power on the 28 MHz band for a General Class control operator?

Select	Answer
A	2000 watts PEP output
B	1000 watts PEP output
C	100 watts PEP output
D	1500 watts PEP output

4. - G1D09

How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

Select	Answer
A	For as long as your current license is valid
B	30 days
C	365 days
D	180 days

5. - G1E03

What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?

Select	Answer
A	No third party traffic maybe be transmitted
B	The control operator of the interrogating station must hold an Extra Class license
C	The station initiating the contact must be under local or remote control
D	The interrogating transmission must be made by another automatically controlled station

6. - G2A11

What does the expression "CQ DX" usually indicate?

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

7. - G2B11

What frequency should be used to send a distress call?

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

8. - G2C09

What does the Q signal "QSL" mean?

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

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. - G2E03

What symptoms may result from other signals interfering with a PACTOR or WINMOR transmission?

Select	Answer
A	All of these choices are correct
B	Failure to establish a connection between stations
C	Frequent retries or timeouts
D	Long pauses in message transmission

11. - G3A07

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

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

12. - G3B01

How might a sky-wave signal sound if it arrives at your receiver by both short path and long path propagation?

Select	Answer
A	Signal strength increased by 3 dB
B	Periodic fading approximately every 10 seconds
C	The signal might be cancelled causing severe attenuation
D	A well-defined echo might be heard

13. - G3C01

Which ionospheric layer is closest to the surface of the Earth?

Select	Answer
A	The D layer
B	The E layer
C	The F2 layer
D	The F1 layer

14. - G4A15

Which of the following can be a symptom of transmitted RF being picked up by an audio cable carrying AFSK data signals between a computer and a transceiver?

Select	Answer
A	The VOX circuit does not un-key the transmitter
B	The transmitter signal is distorted
C	Frequent connection timeouts
D	All of these choices are correct

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. - G4C12

Which of the following is an advantage of a receiver DSP IF filter as compared to an analog filter?

Select	Answer
A	Fewer digital components are required
B	Mixing products are greatly reduced
C	A wide range of filter bandwidths and shapes can be created
D	The DSP filter is much more effective at VHF frequencies

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

18. - G4E06

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

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

19. - G5A10

What unit is used to measure impedance?

Select	Answer
A	Volt
B	Ohm
C	Watt
D	Ampere

20. - G5B10

What percentage of power loss would result from a transmission line loss of 1 dB?

Select	Answer
A	12.2 percent
B	25.9 percent
C	10.9 percent
D	20.5 percent

21. - G5C04

What is the total resistance of three 100 ohm resistors in parallel?

Select	Answer
A	0.30 ohms
B	0.33 ohms
C	300 ohms
D	33.3 ohms

22. - G6A14

Which of the following is an advantage of ceramic capacitors as compared to other types of capacitors?

Select	Answer
A	Comparatively low cost
B	High stability
C	High capacitance for given volume
D	Tight tolerance

23. - G6B09

Which of the following is a characteristic of a liquid crystal display?

Select	Answer
A	It requires ambient or back lighting
B	It has a wide viewing angle
C	All of these choices are correct
D	It offers a wide dynamic range

24. - G7A05

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

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

25. - G7B14

Which of the following describes a linear amplifier?

Select	Answer
A	Any RF power amplifier used in conjunction with an amateur transceiver
B	An amplifier used as a frequency multiplier
C	An amplifier in which the output preserves the input waveform
D	A Class C high efficiency amplifier

26. - G7C11

What is meant by the term "software defined radio" (SDR)?

Select	Answer
A	A radio that provides computer interface for automatic logging of band and frequency
B	A computer model that can simulate performance of a radio to aid in the design process
C	A radio in which most major signal processing functions are performed by software
D	A radio that uses crystal filters designed using software

27. - G8A10

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

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

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	Reactance modulator
B	Multiplier
C	Mixer
D	Pre-emphasis network

29. - G8C02

How many data bits are sent in a single PSK31 character?

Select	Answer
A	5
B	7
C	The number varies
D	8

30. - G9A09

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 200 ohm impedance?

Select	Answer
A	1:4
B	2:1
C	4:1
D	1:2

31. - G9B12

What is the approximate length for a 1/4 wave vertical antenna cut for 28.5 MHz?

Select	Answer
A	16 feet
B	11 feet
C	21 feet
D	8 feet

32. - G9C07

What does "front-to-back ratio" mean in reference to a Yagi antenna?

Select	Answer
A	The power radiated in the major radiation lobe compared to the power radiated in exactly the opposite direction
B	The relative position of the driven element with respect to the reflectors and directors
C	The ratio of forward gain to dipole gain
D	The number of directors versus the number of reflectors

33. - G9D02

Which of the following is an advantage of an NVIS antenna?

Select	Answer
A	Low vertical angle radiation for working stations out to ranges of several thousand kilometers
B	High vertical angle radiation for working stations within a radius of a few hundred kilometers
C	High forward gain
D	All of these choices are correct

34. - G0A09

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

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

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 neutral wire
D	Only the two wires carrying voltage