Q1. What is the main parameter to know the Mach Number?
Pressure
Temperature
Both are true.
Both are false.
Q2. What is a disadvantage of Thermistors?
Need electrical source.
Need pneumatic source.
Need hydraulic source.
All are false.
Q3. What is a direct reading thermometer?
Liquid expansion.
Vapor expansion.
Bi-metallic helix.
All of above are correct.
Q4. What is an advantage of Thermocouples?
a) No electrical source needed.
b) Temperature compensation to compensate cold junction variations.
c) Can measure higher temperatures.
d) a and c are correct.
Q5. What is the true option about optical pyrometer used by the Eurofighter?
The wavelength of radiation emitted by bodies is temperature dependant.
The wavelength of radiation emitted by bodies is pressure dependant.
The wavelength of radiation emitted by bodies is temperature independant.
None are true.
Q6. What is the function of the Drain Hole of the Pitot?
Allows any moisture to leak away without affecting sensing pressure.
Allows any moisture to leak away without affecting sensing temperature.
Allows any moisture to leak away affecting sensing pressure.
Q7. What is VNE:
Never exceed speed.
Not exceed speed.
Non exceeding speed.
All are correct.
Q8. Where is the best place to put the pitot-static on an airplane?
In places where the attitude changes.
Behind the boundary layer.
In places where the attitude does not change much.
1. About the IVSI (Instantaneous Vertical Speed Indicator), it’s important to know that:
It has a response to nose up and nose down respectively and it’s lag is huge.
It has a response to roll left and right and it’s lag is small.
It has a response to nose up and nose down respectively and isn’t lag is almost null.
Is not affected by G forces.
2. About the pressure transducer:
Is a tranlator of the pressure regulator.
It works as a conversor sensed pressure into an electrical signal.
It is not used in aviation.
Is the main part of an aircraft.
3. Before do a navigation, it’s important to know:
The direction of the travel.
The speed we’ll be traveling.
The distance and more.
4. About the magnetic field on Earth:
Is the same in all the seasons.
Is the same regardless the hour in a day.
Both are true
Both are false
5. What is a isoclinal line?
Line that join the points that have the same dip angle.
Line with the same magnetic field.
A correct, B false.
A false, B correct.
6. Rigidity is:
Resistant of a material to be broken.
Resistant of a material to be doubled.
Resistance of the spin axis to tilting.
Resistant to pitch up and down.
7. What precession is?
When a torque is applied along a direction perpendicular to the spin axis, the gyroscope will not tilt in the same direction of the torque.
When you apply a torque, the gyroscope moves to another place.
A is true, B false.
B is false, A true.
8. What is the Gyro Wander?
a) Is the deviation of the ADI.
b) There are some types: Real wander, Apparent wander, Transport wander, and Transport Grid wander.
c) Is the deviation of the spin axis from its set direction.
d) Both B and C are true.
Q1. What is a gyroscope?
A. Rigid body without motion in any plane
B. Rigid body with one principal moment of inertia much larger than the other two, in high spin around its axis of maximum inertia.
C. It's a device for measuring or maintaining orientation, based on the principle of preserving angular momentum
D. b) and c) are true
Q2. A gyroscope are driven by:
a) Air
b) Water
c) Electricity
d) a) and c) are true
Q3. A gyroscope which is N-S aligned
A. Over equator it drifts 15º per hour
B. Over north Pole it drifts 15º per hour
C. It never have drift effect
D. A gyroscope never can be N-S aligned
Q4. A gyro wander is a deviation of the spin axis from its set direction. Some real wander happen as a consequence of:
Bearing's friction
Angular accelerations
Undesired and aleatory
All are true
Q5. A heading indicator
It's manually aligned with the direct reading magnetic compass
It's north seeking
Has freedom in one plane
It isn't continuously adjusted
Q6. Radio Magnetic Indicator shows:
A. Magnetic heading
B. Magnetic bearing with respect to ground stations with radio navigation systems
C. Distance to ground stations
D. a) and b) are true
Q7. An artificial horizon
Has vertical spin axis Earth
Has three degrees of freedom
Indicates airplane attitude relative to pitch and roll axes
Q8. Artificial horizons which have air driven system suffer errors due to pendulosity of the system:
A. Acceleration errors
B. Turning errors
C. Both, a) and b) are true
D. Artificial horizons with air driven system don't suffer any error
Q1. Quality of information in Inertial Navigation Systems depends on:
A. Accuracy of the initial data.
B. Precision of the system alignment with true north.
C. None of the above is correct.
D. A and B are correct.
Q2. Inertial Navigation Systems can be classified in:
A. Inertial and Earth referenced INS.
B. Gimballed and Strapdown INS.
C. INS with fixes axis and INS referenced in the Earth.
D. None of the above is correct.
Q3.Some components in the INS are:
Inertial Navigation Unit.
Mode Selector Unit.
Control Display Unit.
All of the above are correct.
Q4. Force Balance Acelerometer is based on:
A. The angular displacement of a pendulum
B. The vertical displacement of a pendulum
C. The horizontal displacement of a pendulum
Q5. In the Gyro Stabilised Platform are used:
A. 2 gyros
B. 3 gyros
C. 4 gyros
D. It depends on the different platforms.
Q6. Some corrections in the Gyro Stabilised Platform is:
Gyro drift and topple due to apparent and transport wander.
Accelerations correction by Coriolis Force.
Centripetal acceleration.
Q8. About FOG:
Are similar to RLG.
Are more expensive than RLG.
Vibrator is needed.
None of the above is correct
Q7. Some types of integrators are:
Analogic and digital.
Analogic and CC amplifiers.
CC amplifiers and AC generator-tacometers
