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	40.200 MHz
B	7.500 MHz
C	40.500 MHz
D	7.250 MHz

2. - G1B04

Which of the following must be true before amateur stations may provide communications to broadcasters for dissemination to the public?

Select	Answer
A	All of these choices are correct
B	The FCC must have declared a state of emergency
C	The communications must be approved by a local emergency preparedness official and conducted on officially designated frequencies
D	The communications must directly relate to the immediate safety of human life or protection of property and there must be no other means of communication reasonably available before or at the time of the event

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	19.6 kilobaud
C	1200 baud
D	300 baud

4. - G1D03

On which of the following band segments may you operate if you are a Technician Class operator and have a CSCE for General Class privileges?

Select	Answer
A	On any General or Technician Class band segment except 30-meters and 60-meters
B	Only on the Technician band segments until your license arrives in the mail
C	Only the Technician band segments until your upgrade is posted in the FCC database
D	On any General or Technician Class band segment

5. - G1E13

On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?

Select	Answer
A	On any band segment where digital operation is permitted
B	Anywhere in the 1.25-meter or shorter wavelength bands, and in specified segments of the 80-meter through 2-meter bands
C	Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands
D	Only in the non-phone Extra Class segments of the bands

6. - G2A10

Which of the following statements is true of voice VOX operation versus PTT operation?

Select	Answer
A	It occupies less bandwidth
B	It allows "hands free" operation
C	It provides more power output
D	The received signal is more natural sounding

7. - G2B07

Which of the following complies with good amateur practice when choosing a frequency on which to initiate a call?

Select	Answer
A	All of these choices are correct
B	Check to see if the channel is assigned to another station
C	Identify your station by transmitting your call sign at least 3 times
D	Follow the voluntary band plan for the operating mode you intend to use

8. - G2C11

What does the Q signal "QRV" mean?

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

9. - G2D07

Which of the following is required by the FCC rules when operating in the 60-meter band?

Select	Answer
A	You must keep a record of the manufacturer of your equipment and the antenna used
B	If you are using other than a dipole antenna, you must keep a record of the gain of your antenna
C	You must keep a record of all third party traffic
D	You must keep a record of the date, time, frequency, power level and stations worked

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

12. - G3B09

What is the approximate maximum distance along the Earth's surface that is normally covered in one hop using the F2 region?

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

13. - G3C06

What is a characteristic of HF scatter signals?

Select	Answer
A	They have high intelligibility
B	They have very large swings in signal strength
C	All of these choices are correct
D	They have a wavering sound

14. - G4A13

What is one reason to use the attenuator function that is present on many HF transceivers?

Select	Answer
A	To slow down received CW signals for better copy
B	To reduce signal overload due to strong incoming signals
C	To reduce power consumption when operating from batteries
D	To reduce the transmitter power when driving a linear amplifier

15. - G4B08

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

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

16. - G4C07

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

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

17. - G4D04

What does an S meter measure?

Select	Answer
A	Received signal strength
B	Transmitter power output
C	Conductance
D	Impedance

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	Operating bandwidth may be very limited
C	Short antennas are more likely to cause distortion of transmitted signals
D	Harmonic radiation may increase

19. - G5A12

What is one reason to use an impedance matching transformer?

Select	Answer
A	To minimize transmitter power output
B	To reduce power supply ripple
C	To maximize the transfer of power
D	To minimize radiation resistance

20. - G5B11

What is the ratio of peak envelope power to average power for an unmodulated carrier?

Select	Answer
A	1.414
B	2.00
C	0.707
D	1.00

21. - G5C14

Which of the following components should be added to an inductor to increase the inductance?

Select	Answer
A	An inductor in series
B	A capacitor in series
C	An inductor in parallel
D	A resistor in parallel

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. - G6B06

What kind of device is an integrated circuit operational amplifier?

Select	Answer
A	Programmable Logic
B	Digital
C	Analog
D	MMIC

24. - G7A03

What is the peak-inverse-voltage across the rectifiers in a full-wave bridge power supply?

Select	Answer
A	Half the normal output voltage of the power supply
B	Double the normal peak output voltage of the power supply
C	Equal to the normal peak output voltage of the power supply
D	One-quarter the normal output voltage of the power supply

25. - G7B10

Which of the following is a characteristic of a Class A amplifier?

Select	Answer
A	Low standby power
B	Low distortion
C	High Efficiency
D	No need for bias

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	Product detector
B	Balanced modulator
C	IF filter
D	RF oscillator

27. - G8A09

What control is typically adjusted for proper ALC setting on an amateur single sideband transceiver?

Select	Answer
A	Attenuator level
B	The RF clipping level
C	Antenna inductance or capacitance
D	Transmit audio or microphone gain

28. - G8B02

If a receiver mixes a 13.800 MHz VFO with a 14.255 MHz received signal to produce a 455 kHz intermediate frequency (IF) signal, what type of interference will a 13.345 MHz signal produce in the receiver?

Select	Answer
A	Mixer interference
B	Intermediate interference
C	Image response
D	Quadrature noise

29. - G8C04

Which of the following describes Baudot code?

Select	Answer
A	A 5-bit code with additional start and stop bits
B	A code using error detection and correction
C	A 7-bit code with start, stop and parity bits
D	A code using SELCAL and LISTEN

30. - G9A05

How does the attenuation of coaxial cable change as the frequency of the signal it is carrying increases?

Select	Answer
A	Attenuation is independent of frequency
B	Attenuation decreases
C	Attenuation increases
D	Attenuation reaches a maximum at approximately 18 MHz

31. - G9B06

Where should the radial wires of a ground-mounted vertical antenna system be placed?

Select	Answer
A	At the center of the antenna
B	On the surface of the Earth or buried a few inches below the ground
C	As high as possible above the ground
D	Parallel to the antenna element

32. - G9C05

How does increasing boom length and adding directors affect a Yagi antenna?

Select	Answer
A	Front to back ratio decreases
B	Beamwidth increases
C	Gain increases
D	Front to side ratio decreases

33. - G9D04

What is the primary purpose of antenna traps?

Select	Answer
A	To permit multiband operation
B	To provide balanced feed point impedance
C	To notch spurious frequencies
D	To prevent out of band operation

34. - G0A09

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

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

35. - G0B04

Which of the following is a primary reason for not placing a gasoline-fueled generator inside an occupied area?

Select	Answer
A	Danger of carbon monoxide poisoning
B	Lack of nitrogen for adequate combustion
C	Lack of oxygen for adequate combustion
D	Danger of engine over torque