13931708
Descrição
Quiz por Ismael Vázquez, atualizado more than 1 year ago
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Criado por Ismael Vázquez
aproximadamente 6 anos atrás
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Questão 1
Questão
Which are the design considerations of servomotor actuators of the AFCS?
Responda
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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
Questão 2
Questão
About AFCS modes, choose the INCORRECT option
Responda
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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
Questão 3
Questão
What of this statements are true?
Responda
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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.
Questão 4
Questão
How is corrected the Dutch Roll
Responda
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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
Questão 5
Questão
Dutch Roll
Responda
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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
Questão 6
Questão
Rate Damping Systems
Responda
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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
Questão 7
Questão
The phenomenon called tuck under occurs…
Responda
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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
Questão 8
Questão
Tuck under generates…
Responda
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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
Questão 9
Questão
Frequencies of the radar:
Responda
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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
Questão 10
Questão
Which type of wave do radar use?
Responda
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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
Questão 11
Questão
Kinds of amplifiers:
Responda
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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
Questão 12
Questão
Which is the meaning of RADAR?
Responda
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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
Questão 13
Questão
What affects the total effect of noise?
Responda
-
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
Questão 14
Questão
Shorter pulses have...
Responda
-
Lower bandwidth and worse resolution
-
Lower bandwidth and better resolution
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Higher bandwidth and worse resolution
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Higher bandwidth and better resolution
Questão 15
Questão
Power required is...
Responda
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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
Questão 16
Questão
Which is the standard frequency of an airborne WX Radar
Responda
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~ 9 GHz
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~ 50 GHz
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~ 100 GHz
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~1 GHz
Questão 17
Questão
Some types of antennas are:
Responda
-
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
Questão 18
Questão
Some examples of Parabolic Antenna:
Responda
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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
Questão 19
Questão
A disadvantage of an Array radar:
Responda
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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
Questão 20
Questão
Types of clutter
Responda
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Ground clutter
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Rain
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Sea clutter
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All of them
Questão 21
Questão
Factors affecting RCS:
Responda
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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
Questão 22
Questão
Which of these sentences is true?
Responda
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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
Questão 23
Questão
Pulse compression technique:
Responda
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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
Questão 24
Questão
Some methods to reduce RCS are:
Responda
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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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