13931708
Descripción
Test por Ismael Vázquez, actualizado hace más de 1 año
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Creado por Ismael Vázquez
hace casi 6 años
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Pregunta 1
Pregunta
Which are the design considerations of servomotor actuators of the AFCS?
Respuesta
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Range of control
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Rate of movement
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Accuracy of movement
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All are correct
Pregunta 2
Pregunta
About AFCS modes, choose the INCORRECT option
Respuesta
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The modes can be horizontal, lateral and combined
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The horizontal mode controls the ROLL of the aircraft
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The vertical mode controls the ROLL of the aircraft
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The vertical mode controls the PITCH of the aircraft
Pregunta 3
Pregunta
What of this statements are true?
Respuesta
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Triplex Systems use four lanes
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In Simplex Systems a failure does not render the system out of service
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Triplex Systems make use of voting techniques
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Quadruplex Systems do not exist already.
Pregunta 4
Pregunta
How is corrected the Dutch Roll
Respuesta
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With a Yaw Damper System
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With a Pitch Damper System
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None of the above
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With both systems
Pregunta 5
Pregunta
Dutch Roll
Respuesta
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More common in aircraft with swept wing
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It appears in light aircrafts flying at low speeds
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A phenomenom that can happen when flying in the same parallel as Holland
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None is correct
Pregunta 6
Pregunta
Rate Damping Systems
Respuesta
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A. Have more to do with control than stability
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B. Have more to do with stability than control
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C. Prevent unwanted divergence rates and help to smooth rates to demand
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D. B and C are right
Pregunta 7
Pregunta
The phenomenon called tuck under occurs…
Respuesta
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Flying at subsonic speeds
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Flying at transonic speeds
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Flying at high subsonic speeds
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Flying at high subsonic speeds and transonic speeds
Pregunta 8
Pregunta
Tuck under generates…
Respuesta
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Controllable nose up motion
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Controllable nose down motion
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Uncontrollable nose up motion
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Uncontrollable nose down motion
Pregunta 9
Pregunta
Frequencies of the radar:
Respuesta
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1-10 GHz
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10-100 GHz
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100-1000 GHz
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1000-10000 GHz
Pregunta 10
Pregunta
Which type of wave do radar use?
Respuesta
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A. EM(Electro Magnetic)
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B. Short wavelength
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C. Extremely long wavelength
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D. A and B are correct
Pregunta 11
Pregunta
Kinds of amplifiers:
Respuesta
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A. Tube amplifiers
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B. Solid state amplifiers
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C. Hard amplifiers
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D. A and B are right
Pregunta 12
Pregunta
Which is the meaning of RADAR?
Respuesta
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Radio Altimeter to Detect Altitude Risk
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Radio Aid to Detection And Ranging
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Radio Aid for Distance At Runways
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All are false
Pregunta 13
Pregunta
What affects the total effect of noise?
Respuesta
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Antenna noise
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Antenna noise + Transmission line noise
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Antenna noise + Transmission line noise + Equipment noise
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All are false
Pregunta 14
Pregunta
Shorter pulses have...
Respuesta
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Lower bandwidth and worse resolution
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Lower bandwidth and better resolution
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Higher bandwidth and worse resolution
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Higher bandwidth and better resolution
Pregunta 15
Pregunta
Power required is...
Respuesta
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Independent of wavelength
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A very strong function of R
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A linear function of everything else
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All above are correct
Pregunta 16
Pregunta
Which is the standard frequency of an airborne WX Radar
Respuesta
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~ 9 GHz
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~ 50 GHz
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~ 100 GHz
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~1 GHz
Pregunta 17
Pregunta
Some types of antennas are:
Respuesta
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A. Isotropic Antenna
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B. Directional Antenna
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C. A & B are correct
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D. A & B are false
Pregunta 18
Pregunta
Some examples of Parabolic Antenna:
Respuesta
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A. Fan-Beam Antenna
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B. Offset Antenna
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C. A and B are true
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D. A and B are false
Pregunta 19
Pregunta
A disadvantage of an Array radar:
Respuesta
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Beam agility
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Low loss
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Effective radar resource management
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Higher cost
Pregunta 20
Pregunta
Types of clutter
Respuesta
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Ground clutter
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Rain
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Sea clutter
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All of them
Pregunta 21
Pregunta
Factors affecting RCS:
Respuesta
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Geometric cross-section
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Directivity
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Reflectivity
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All of them are correct
Pregunta 22
Pregunta
Which of these sentences is true?
Respuesta
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The F-18 has smaller RCS than the F-22
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The F-117 has smaller RCS than an insect
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Both of them are correct
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Both of them are false
Pregunta 23
Pregunta
Pulse compression technique:
Respuesta
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Allows a radar to achieve simultaneously the energy of a short pulse and the resolution of a long pulse
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Allows a radar to achieve simultaneously the energy of a long pulse and the resolution of a long pulse
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Allows a radar to achieve simultaneously the energy of a short pulse and the resolution of a short pulse
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Allows a radar to achieve simultaneously the energy of a long pulse and the resolution of a short pulse
Pregunta 24
Pregunta
Some methods to reduce RCS are:
Respuesta
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Blended wings and fuselage
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Swept leading edges
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A low-profile ‘blended cockpit’
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All of them are correct
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