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	12 meters
C	17 meters
D	160 meters

2. - G1B09

When may an amateur station transmit communications in which the licensee or control operator has a pecuniary (monetary) interest?

Select	Answer
A	When other amateurs are being notified of the sale of apparatus normally used in an amateur station and such activity is not done on a regular basis
B	Only when there is no other means of communications readily available
C	When other amateurs are being notified of the sale of any item with a monetary value less than $200 and such activity is not done on a regular basis
D	Never

3. - G1C07

What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20-meter band?

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

4. - G1D05

Which of the following must a person have before they can be an administering VE for a Technician Class license examination?

Select	Answer
A	Receipt of a CSCE for General Class
B	Notification to the FCC that you want to give an examination
C	An FCC General Class or higher license and VEC accreditation
D	Possession of a properly obtained telegraphy license

5. - G1E02

When may a 10-meter repeater retransmit the 2-meter signal from a station having a Technician Class control operator?

Select	Answer
A	Only during an FCC declared general state of communications emergency
B	Only if the 10-meter repeater control operator holds at least a General Class license
C	Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission
D	Under no circumstances

6. - G2A09

Why do most amateur stations use lower sideband on the 160-meter, 75-meter and 40-meter bands?

Select	Answer
A	Because it is fully compatible with an AM detector
B	Lower sideband is more efficient than upper sideband at these frequencies
C	Current amateur practice is to use lower sideband on these frequency bands
D	Lower sideband is the only sideband legal on these frequency bands

7. - G2B10

When may the FCC restrict normal frequency operations of amateur stations participating in RACES?

Select	Answer
A	When they declare a temporary state of communication emergency
B	When the President's War Emergency Powers have been invoked
C	Only when all amateur stations are instructed to stop transmitting
D	When they seize your equipment for use in disaster communications

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	An operator must activate a manual send/receive switch before and after every transmission
C	Breaking stations send the Morse code prosign BK
D	Transmitting stations can receive between code characters and elements

9. - G2D06

How is a directional antenna pointed when making a "long-path" contact with another station?

Select	Answer
A	180 degrees from its short-path heading
B	Toward the north
C	Toward the rising Sun
D	Along the gray line

10. - G2E07

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

Select	Answer
A	3775 - 3825 kHz
B	3500 - 3525 kHz
C	3700 - 3750 kHz
D	3570 - 3600 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	8 minutes
D	1 to 2 hours

12. - G3B06

What usually happens to radio waves with frequencies below the LUF?

Select	Answer
A	They pass through the ionosphere
B	They are completely absorbed by the ionosphere
C	They are bent and trapped in the ionosphere to circle the Earth
D	They are bent back to the Earth

13. - G3C04

What does the term "critical angle" mean as used in radio wave propagation?

Select	Answer
A	The short path azimuth of a distant station
B	The lowest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions
C	The long path azimuth of a distant station
D	The highest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions

14. - G4A10

What is the purpose of an electronic keyer?

Select	Answer
A	Automatic generation of strings of dots and dashes for CW operation
B	Computer interface for PSK and RTTY operation
C	VOX operation
D	Automatic transmit/receive switching

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

16. - G4C05

What might be the problem if you receive an RF burn when touching your equipment while transmitting on an HF band, assuming the equipment is connected to a ground rod?

Select	Answer
A	The ground rod is resonant
B	The ground wire has high impedance on that frequency
C	Insulated wire has been used for the ground wire
D	Flat braid rather than round wire has been used for the ground wire

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

18. - G4E08

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

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

19. - G5A13

Which of the following devices can be used for impedance matching at radio frequencies?

Select	Answer
A	A transformer
B	All of these choices are correct
C	A length of transmission line
D	A Pi-network

20. - G5B12

What would be the RMS voltage across a 50 ohm dummy load dissipating 1200 watts?

Select	Answer
A	173 volts
B	245 volts
C	346 volts
D	692 volts

21. - G5C16

Why is the conductor of the primary winding of many voltage step up transformers larger in diameter than the conductor of the secondary winding?

Select	Answer
A	To insure that the volume of the primary winding is equal to the volume of the secondary winding
B	To accommodate the higher current of the primary
C	To improve the coupling between the primary and secondary
D	To prevent parasitic oscillations due to resistive losses in the primary

22. - G6A04

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

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

23. - G6B03

Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?

Select	Answer
A	Better suited for RF amplification
B	Low power consumption
C	High power handling capability
D	Better suited for power supply regulation

24. - G7A12

Which symbol in Figure G7-1 represents a multiple-winding transformer?

Select	Answer
A	Symbol 1
B	Symbol 7
C	Symbol 6
D	Symbol 4

25. - G7B10

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

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

26. - G7C06

What should be the impedance of a low-pass filter as compared to the impedance of the transmission line into which it is inserted?

Select	Answer
A	Substantially higher
B	About the same
C	Twice the transmission line impedance
D	Substantially lower

27. - G8A09

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

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

28. - G8B07

What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?

Select	Answer
A	60 kHz
B	101.75 Hz
C	416.7 Hz
D	5 kHz

29. - G8C07

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

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

30. - G9A15

What is the effect of transmission line loss on SWR measured at the input to the line?

Select	Answer
A	Transmission line loss does not affect the SWR measurement
B	The higher the transmission line loss, the more the SWR will read artificially low
C	The higher the transmission line loss, the more the SWR will read artificially high
D	The higher the transmission line loss, the more accurate the SWR measurement will be

31. - G9B07

How does the feed point impedance of a 1/2 wave dipole antenna change as the antenna is lowered below 1/4 wave above ground?

Select	Answer
A	It peaks at about 1/8 wavelength above ground
B	It is unaffected by the height above ground
C	It steadily decreases
D	It steadily increases

32. - G9C08

What is meant by the "main lobe" of a directive antenna?

Select	Answer
A	The direction of maximum radiated field strength from the antenna
B	The magnitude of the maximum vertical angle of radiation
C	The maximum voltage standing wave point on a radiating element
D	The point of maximum current in a radiating antenna element

33. - G9D01

What does the term NVIS mean as related to antennas?

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

34. - G0A03

How can you determine that your station complies with FCC RF exposure regulations?

Select	Answer
A	All of these choices are correct
B	By calculation based on FCC OET Bulletin 65
C	By calculation based on computer modeling
D	By measurement of field strength using calibrated equipment

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	Only the neutral wire
B	All wires
C	Only the two wires carrying voltage
D	Only the ground wire

Figure G7-1