Quiz by Ismael Vázquez, created more than 1 year ago

AVIONICS 4º PARCIAL Quiz on SEMANA 14/05 A 17/05 (Sin preguntas G4 del 17/05), created by Ismael Vázquez on 26/05/2018.

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	Created by Ismael Vázquez almost 6 years ago

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SEMANA 14/05 A 17/05 (Sin preguntas G4 del 17/05)

Question 1 of 24

1

Which are the design considerations of servomotor actuators of the AFCS?

Select one of the following:

Range of control
Rate of movement
Accuracy of movement
All are correct

Explanation

Question 2 of 24

1

About AFCS modes, choose the INCORRECT option

Select one of the following:

The modes can be horizontal, lateral and combined
The horizontal mode controls the ROLL of the aircraft
The vertical mode controls the ROLL of the aircraft
The vertical mode controls the PITCH of the aircraft

Explanation

Question 3 of 24

1

What of this statements are true?

Select one of the following:

Triplex Systems use four lanes
In Simplex Systems a failure does not render the system out of service
Triplex Systems make use of voting techniques
Quadruplex Systems do not exist already.

Explanation

Question 4 of 24

1

How is corrected the Dutch Roll

Select one of the following:

With a Yaw Damper System
With a Pitch Damper System
None of the above
With both systems

Explanation

Question 5 of 24

1

Dutch Roll

Select one of the following:

More common in aircraft with swept wing
It appears in light aircrafts flying at low speeds
A phenomenom that can happen when flying in the same parallel as Holland
None is correct

Explanation

Question 6 of 24

1

Rate Damping Systems

Select one of the following:

A. Have more to do with control than stability
B. Have more to do with stability than control
C. Prevent unwanted divergence rates and help to smooth rates to demand
D. B and C are right

Explanation

Question 7 of 24

1

The phenomenon called tuck under occurs…

Select one of the following:

Flying at subsonic speeds
Flying at transonic speeds
Flying at high subsonic speeds
Flying at high subsonic speeds and transonic speeds

Explanation

Question 8 of 24

1

Tuck under generates…

Select one of the following:

Controllable nose up motion
Controllable nose down motion
Uncontrollable nose up motion
Uncontrollable nose down motion

Explanation

Question 9 of 24

1

Frequencies of the radar:

Select one of the following:

1-10 GHz
10-100 GHz
100-1000 GHz
1000-10000 GHz

Explanation

Question 10 of 24

1

Which type of wave do radar use?

Select one of the following:

A. EM(Electro Magnetic)
B. Short wavelength
C. Extremely long wavelength
D. A and B are correct

Explanation

Question 11 of 24

1

Kinds of amplifiers:

Select one of the following:

A. Tube amplifiers
B. Solid state amplifiers
C. Hard amplifiers
D. A and B are right

Explanation

Question 12 of 24

1

Which is the meaning of RADAR?

Select one of the following:

Radio Altimeter to Detect Altitude Risk
Radio Aid to Detection And Ranging
Radio Aid for Distance At Runways
All are false

Explanation

Question 13 of 24

1

What affects the total effect of noise?

Select one of the following:

Antenna noise
Antenna noise + Transmission line noise
Antenna noise + Transmission line noise + Equipment noise
All are false

Explanation

Question 14 of 24

1

Shorter pulses have...

Select one of the following:

Lower bandwidth and worse resolution
Lower bandwidth and better resolution
Higher bandwidth and worse resolution
Higher bandwidth and better resolution

Explanation

Question 15 of 24

1

Power required is...

Select one of the following:

Independent of wavelength
A very strong function of R
A linear function of everything else
All above are correct

Explanation

Question 16 of 24

1

Which is the standard frequency of an airborne WX Radar

Select one of the following:

~ 9 GHz
~ 50 GHz
~ 100 GHz
~1 GHz

Explanation

Question 17 of 24

1

Some types of antennas are:

Select one of the following:

A. Isotropic Antenna
B. Directional Antenna
C. A & B are correct
D. A & B are false

Explanation

Question 18 of 24

1

Some examples of Parabolic Antenna:

Select one of the following:

A. Fan-Beam Antenna
B. Offset Antenna
C. A and B are true
D. A and B are false

Explanation

Question 19 of 24

1

A disadvantage of an Array radar:

Select one of the following:

Beam agility
Low loss
Effective radar resource management
Higher cost

Explanation

Question 20 of 24

1

Types of clutter

Select one of the following:

Ground clutter
Rain
Sea clutter
All of them

Explanation

Question 21 of 24

1

Factors affecting RCS:

Select one of the following:

Geometric cross-section
Directivity
Reflectivity
All of them are correct

Explanation

Question 22 of 24

1

Which of these sentences is true?

Select one of the following:

The F-18 has smaller RCS than the F-22
The F-117 has smaller RCS than an insect
Both of them are correct
Both of them are false

Explanation

Question 23 of 24

1

Pulse compression technique:

Select one of the following:

Allows a radar to achieve simultaneously the energy of a short pulse and the
resolution of a long pulse
Allows a radar to achieve simultaneously the energy of a long pulse and the
resolution of a long pulse
Allows a radar to achieve simultaneously the energy of a short pulse and the
resolution of a short pulse
Allows a radar to achieve simultaneously the energy of a long pulse and the
resolution of a short pulse

Explanation

Question 24 of 24

1

Some methods to reduce RCS are:

Select one of the following:

Blended wings and fuselage
Swept leading edges
A low-profile ‘blended cockpit’
All of them are correct

Explanation