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. - G1A02

On which of the following bands is phone operation prohibited?

Select	Answer
A	30 meters
B	160 meters
C	12 meters
D	17 meters

2. - G1B03

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

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

3. - G1C04

Which of the following limitations apply to transmitter power on every amateur band?

Select	Answer
A	Power must be limited to 200 watts when transmitting between 14.100 MHz and 14.150 MHz
B	Power should be limited as necessary to avoid interference to another radio service on the frequency
C	Only the minimum power necessary to carry out the desired communications should be used
D	Effective radiated power cannot exceed 1500 watts

4. - G1D02

What license examinations may you administer when you are an accredited VE holding a General Class operator license?

Select	Answer
A	General and Technician
B	Technician only
C	Extra, General and Technician
D	General only

5. - G1E09

What language must be used when identifying your station if you are using a language other than English in making a contact using phone emission?

Select	Answer
A	English only
B	Any language recognized by the United Nations
C	The language being used for the contact
D	English, Spanish, French, or German

6. - G2A10

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

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

7. - G2B11

What frequency should be used to send a distress call?

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

8. - G2C01

Which of the following describes full break-in telegraphy (QSK)?

Select	Answer
A	Automatic keyers are used to send Morse code instead of hand keys
B	Transmitting stations can receive between code characters and elements
C	An operator must activate a manual send/receive switch before and after every transmission
D	Breaking stations send the Morse code prosign BK

9. - G2D02

Which of the following are objectives of the Amateur Auxiliary?

Select	Answer
A	To coordinate repeaters for efficient and orderly spectrum usage
B	To provide emergency and public safety communications
C	To conduct efficient and orderly amateur licensing examinations
D	To encourage self-regulation and compliance with the rules by radio amateur operators

10. - G2E07

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

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

11. - G3A10

What causes HF propagation conditions to vary periodically in a 28 day cycle?

Select	Answer
A	The Sun's rotation on its axis
B	Long term oscillations in the upper atmosphere
C	The position of the Moon in its orbit
D	Cyclic variation in the Earth's radiation belts

12. - G3B07

What does LUF stand for?

Select	Answer
A	The Lowest Usable Frequency for communications between two points
B	The Longest Universal Function for communications between two points
C	The Longest Universal Function during a 24 hour period
D	The Lowest Usable Frequency during a 24 hour period

13. - G3C13

What is Near Vertical Incidence Sky-wave (NVIS) propagation?

Select	Answer
A	Propagation near the MUF
B	Short distance MF or HF propagation using high elevation angles
C	Double hop propagation near the LUF
D	Long path HF propagation at sunrise and sunset

14. - G4A08

What is the correct adjustment for the load or coupling control of a vacuum tube RF power amplifier?

Select	Answer
A	Minimum plate current without exceeding maximum allowable grid current
B	Highest plate voltage while minimizing grid current
C	Maximum power output without exceeding maximum allowable plate current
D	Minimum SWR on the antenna

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

16. - G4C12

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

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

17. - G4D01

What is the purpose of a speech processor as used in a modern transceiver?

Select	Answer
A	Decrease high-frequency voice output to prevent out of band operation
B	Prevent distortion of voice signals
C	Increase the intelligibility of transmitted phone signals during poor conditions
D	Increase transmitter bass response for more natural sounding SSB signals

18. - G4E08

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

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

19. - G5A03

Which of the following causes opposition to the flow of alternating current in an inductor?

Select	Answer
A	Reluctance
B	Conductance
C	Reactance
D	Admittance

20. - G5B01

What dB change represents a two-times increase or decrease in power?

Select	Answer
A	Approximately 6 dB
B	Approximately 12 dB
C	Approximately 3 dB
D	Approximately 2 dB

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. - G6A04

When is it acceptable to recharge a carbon-zinc primary cell?

Select	Answer
A	When a constant current charger is used
B	Never
C	When the cell is kept warm during the recharging period
D	As long as the voltage has not been allowed to drop below 1.0 volt

23. - G6B12

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

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

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

25. - G7B09

What determines the frequency of an LC oscillator?

Select	Answer
A	The number of stages in the divider
B	The time delay of the lag circuit
C	The inductance and capacitance in the tank circuit
D	The number of stages in the counter

26. - G7C05

Which of the following is an advantage of a transceiver controlled by a direct digital synthesizer (DDS)?

Select	Answer
A	Relatively high power output
B	Relatively low power consumption
C	Wide tuning range and no need for band switching
D	Variable frequency with the stability of a crystal oscillator

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

Select	Answer
A	Phase modulation
B	Double sideband
C	Frequency modulation
D	Single sideband

28. - G8B08

Why is it important to know the duty cycle of the mode you are using when transmitting?

Select	Answer
A	All of these choices are correct
B	To allow time for the other station to break in during a transmission
C	To aid in tuning your transmitter
D	Some modes have high duty cycles which could exceed the transmitter's average power rating.

29. - G8C08

Which of the following statements is true about PSK31?

Select	Answer
A	Higher power is needed as compared to RTTY for similar error rates
B	Upper case letters use longer Varicode signals and thus slow down transmission
C	Upper case letters make the signal stronger
D	Varicode Error Correction is used to ensure accurate message reception

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	1:2
B	1:4
C	2:1
D	4:1

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	Shorter Radials
C	Lower feed point impedance
D	Lower radiation resistance

32. - G9C15

Approximately how long is each side of the reflector element of a quad antenna?

Select	Answer
A	Slightly more than 1/4 wavelength
B	Slightly less than 1/4 wavelength
C	Slightly more than 1/2 wavelength
D	Slightly less than 1/2 wavelength

33. - G9D01

What does the term NVIS mean as related to antennas?

Select	Answer
A	Non-Varying Indicated SWR
B	Nearly Vertical Inductance System
C	Non-Varying Impedance Smoothing
D	Near Vertical Incidence sky-wave

34. - G0A01

What is one way that RF energy can affect human body tissue?

Select	Answer
A	It cools body tissue
B	It causes the blood count to reach a dangerously low level
C	It causes radiation poisoning
D	It heats body tissue

35. - G0B13

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

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