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. - G1A04

Which of the following amateur bands is restricted to communication on only specific channels, rather than frequency ranges?

Select	Answer
A	30 meters
B	12 meters
C	60 meters
D	11 meters

2. - G1B08

When choosing a transmitting frequency, what should you do to comply with good amateur practice?

Select	Answer
A	Insure that the frequency and mode selected are within your license class privileges
B	Monitor the frequency before transmitting
C	All of these choices are correct
D	Follow generally accepted band plans agreed to by the Amateur Radio community

3. - G1C10

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 10-meter band?

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

4. - G1D08

Which of the following criteria must be met for a non-U.S. citizen to be an accredited Volunteer Examiner?

Select	Answer
A	The person's home citizenship must be in ITU region 2
B	None of these choices is correct; a non-U.S. citizen cannot be a Volunteer Examiner
C	The person must hold an FCC granted Amateur Radio license of General Class or above
D	The person must be a resident of the U.S. for a minimum of 5 years

5. - G1E05

What types of messages for a third party in another country may be transmitted by an amateur station?

Select	Answer
A	Only messages relating to Amateur Radio or remarks of a personal character, or messages relating to emergencies or disaster relief
B	Any message, as long as the amateur operator is not paid
C	Any messages, as long as the text of the message is recorded in the station log
D	Only messages for other licensed amateurs

6. - G2A10

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

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

7. - G2B03

If propagation changes during your contact and you notice increasing interference from other activity on the same frequency, what should you do?

Select	Answer
A	As a common courtesy, move your contact to another frequency
B	Report the interference to your local Amateur Auxiliary Coordinator
C	Increase power to overcome interference
D	Tell the interfering stations to change frequency

8. - G2C02

What should you do if a CW station sends "QRS"?

Select	Answer
A	Repeat everything twice
B	Change frequency
C	Increase your power
D	Send slower

9. - G2D03

What skills learned during hidden transmitter hunts are of help to the Amateur Auxiliary?

Select	Answer
A	Identification of out of band operation
B	Identification of different call signs
C	Direction finding used to locate stations violating FCC Rules
D	Hunters have an opportunity to transmit on non-amateur frequencies

10. - G2E09

How do you join a contact between two stations using the PACTOR protocol?

Select	Answer
A	Joining an existing contact is not possible, PACTOR connections are limited to two stations
B	Transmit a steady carrier until the PACTOR protocol times out and disconnects
C	Send broadcast packets containing your call sign while in MONITOR mode
D	Send a NAK response continuously so that the sending station has to pause

11. - G3A16

What is a possible benefit to radio communications resulting from periods of high geomagnetic activity?

Select	Answer
A	Higher signal strength for HF signals passing through the polar regions
B	Improved HF long path propagation
C	Auroras that can reflect VHF signals
D	Reduced long delayed echoes

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

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

14. - G4A12

Which of the following is a common use for the dual VFO feature on a transceiver?

Select	Answer
A	To allow transmitting on two frequencies at once
B	To permit full duplex operation, that is transmitting and receiving at the same time
C	To facilitate computer interface
D	To permit monitoring of two different frequencies

15. - G4B01

What item of test equipment contains horizontal and vertical channel amplifiers?

Select	Answer
A	A signal generator
B	An oscilloscope
C	An ammeter
D	An ohmmeter

16. - G4C07

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

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

17. - G4D06

Where is an S meter found?

Select	Answer
A	In a conductance bridge
B	In a receiver
C	In an SWR bridge
D	In a transmitter

18. - G4E08

What is the name of the process by which sunlight is changed directly into electricity?

Select	Answer
A	Photon decomposition
B	Photosynthesis
C	Photon emission
D	Photovoltaic conversion

19. - G5A04

Which of the following causes opposition to the flow of alternating current in a capacitor?

Select	Answer
A	Reactance
B	Conductance
C	Reluctance
D	Admittance

20. - G5B09

What is the RMS voltage of a sine wave with a value of 17 volts peak?

Select	Answer
A	34 volts
B	24 volts
C	8.5 volts
D	12 volts

21. - G5C07

What is the turns ratio of a transformer used to match an audio amplifier having 600 ohm output impedance to a speaker having 4 ohm impedance?

Select	Answer
A	24.4 to 1
B	150 to 1
C	12.2 to 1
D	300 to 1

22. - G6A13

Why is the polarity of applied voltages important for polarized capacitors?

Select	Answer
A	Incorrect polarity can cause the capacitor to short-circuit
B	All of these choices are correct
C	Reverse voltages can destroy the dielectric layer of an electrolytic capacitor
D	The capacitor could overheat and explode

23. - G6B10

What two devices in an Amateur Radio station might be connected using a USB interface?

Select	Answer
A	Computer and transceiver
B	Power supply and amplifier
C	Amplifier and antenna
D	Microphone and transceiver

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	Equal to the normal peak output voltage of the power supply
C	One-quarter the normal output voltage of the power supply
D	Double the normal peak output voltage of the power supply

25. - G7B14

Which of the following describes a linear amplifier?

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

26. - G7C02

Which circuit is used to combine signals from the carrier oscillator and speech amplifier then send the result to the filter in some single sideband phone transmitters?

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

27. - G8A09

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

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

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	Multiplier
B	Mixer
C	Reactance modulator
D	Pre-emphasis network

29. - G8C02

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

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

30. - G9A05

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

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

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	Lower radiation resistance
C	Shorter Radials
D	Lower feed point impedance

32. - G9C17

Approximately how long is each leg of a symmetrical delta-loop antenna?

Select	Answer
A	1/2 wavelength
B	1/3 wavelength
C	2/3 wavelength
D	1/4 wavelength

33. - G9D06

Which of the following is an advantage of a log periodic antenna?

Select	Answer
A	Wide bandwidth
B	Polarization diversity
C	Higher gain per element than a Yagi antenna
D	Harmonic suppression

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

35. - G0B11

Which of the following is good practice for lightning protection grounds?

Select	Answer
A	They must be bonded together with all other grounds
B	Lightning grounds must be connected to all ungrounded wiring
C	They must be bonded to all buried water and gas lines
D	Bends in ground wires must be made as close as possible to a right angle