Ismael Vázquez
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AVIÓNICA Quiz on 91.Semana de Caro, created by Ismael Vázquez on 02/04/2018.

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Ismael Vázquez
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91.Semana de Caro

Question 1 of 32

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Q1. The maximum speed at which a plane can use its breaks is mostly related to:

Select one of the following:

  • A. The drag of the wheels due to the wind

  • B. The capability of the break system to dissipate energy

  • C. The viscosity of the hydraulic system

  • D. The inerce created by a fast deceleration

Explanation

Question 2 of 32

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Q2. The mechanical drum brakes works by: (Choose the most correct answer)

Select one of the following:

  • A. Compression

  • B. Expansion

  • C. Compression and it needs to disipate the energy generated

  • D. Expansion but it’s a system which doesn’t need to disipate any energy

Explanation

Question 3 of 32

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Q3. Break system must be designed for 1.5 the normal braking distance. It means that if we know that the normal braking distance for an aircraft is 1000m:

Select one of the following:

  • A. It will be able to stop 0.5 the time it would need without brakes

  • B. It will be able to stop in 500m

  • C. It will be able to resist a energy dissipation of a breaking distance of 1500m

  • D. It will continue being useful after a breaking of 500m

Explanation

Question 4 of 32

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Q4. The KERS:

Select one of the following:

  • A. Consists of an anti-locked breaking system

  • B. Is typical in aeronautics

  • C. Is located in the aileron of the F1 cars

  • D. Recovers energy from the braking

Explanation

Question 5 of 32

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Q5. The explosion of the wheels due to high temperatures is avoided:

Select one of the following:

  • A. By using a thermal fuse

  • B. By using chemical substances

  • C. By using protections in the contact zone between the brake and the wheel

  • D. By strengthening the discs of the braking system

Explanation

Question 6 of 32

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Q6. The tyre markings are normally composed by:

Select one of the following:

  • A. External diameter and section

  • B. Section and maximum tyre pressure

  • C. External diameter, section and maximum groundspeed

  • D. External diameter, section and hub diameter

Explanation

Question 7 of 32

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Q7. Aquaplaning occurs when:

Select one of the following:

  • A. There is a viscous liquid in the taxiway while taxiing

  • B. A wedge of water builds up in front of your tires and lifts them off the runway

  • C. Tires lock up, the rubber begins to melt, and trapped water under the tire turns into steam

  • D. All previous answers are correct

Explanation

Question 8 of 32

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Q8. Brake sizing depends on:

Select one of the following:

  • A. The aircraft mass but it doesn’t depend on the heat sink specific heat

  • B. Temperature increment during braking

  • C. A and B are correct

  • D. A and B are false

Explanation

Question 9 of 32

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Q9. Which is a primary control according to flight actions?

Select one of the following:

  • A. Elevator

  • B. Rudder

  • C. Aleron

  • D. A,B and C more basic maneuvers.

Explanation

Question 10 of 32

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Q10. Which movement is in relation with the aileron?

Select one of the following:

  • A. Roll

  • B. Pitch

  • C. Yaw

  • D. All are correct

Explanation

Question 11 of 32

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Q11. Which movement is in relation with the rudder?

Select one of the following:

  • A. Roll

  • B. Pitch

  • C. Yaw

  • D. All are correct

Explanation

Question 12 of 32

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Q12. How many pressure in psi is used to move hydraulic controls? (standard since WWII)

Select one of the following:

  • A. 1500 psi

  • B. 2000 psi

  • C. 2500 psi

  • D. 3000 psi

Explanation

Question 13 of 32

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Q13. Which are the principal characteristics of a fight aircraft?

Select one of the following:

  • A. Unstable and very maneuverable

  • B. Stable and very maneuverable

  • C. Unstable and not maneuverable

  • D. Stable and not maneuverable

Explanation

Question 14 of 32

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Q14. Flight control rules:

Select one of the following:

  • A. Safety

  • B. Reliability

  • C. Minimum weight and cost

  • D. A,B and C are correct

Explanation

Question 15 of 32

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Q15. About safety, approximately what is the statistic of failure in an aircraft design?

Select one of the following:

  • A. 1 failure per 10^3 million hours

  • B. 10 failure per 1 million hours

  • C. 1 failure per 10^3 billion hours

  • D. All are false

Explanation

Question 16 of 32

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Q16. How is named the system which we move the control surface acting an electric engine?

Select one of the following:

  • A. Fly by wire

  • B. Power by wire

  • C. Mechanical by wire

  • D. Electrical by wire

Explanation

Question 17 of 32

1

Q1.Name the three axes of maneuver in flight actuaction:

Select one of the following:

  • A. Elevator, flaps, lateral

  • B. Pitching, rolling, yawing

  • C. Spoilers, direction, rudder

  • D. Yaw, pitch, rudder

Explanation

Question 18 of 32

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Q2. In a cable operated control, what happens if the control is broken?

Select one of the following:

  • A. Aerodynamic forces tend put the control surface in an equilibrium position

  • B. Aerodynamic forces tend put the control surface in an non-controlable position

  • C. It is imposible to know.

  • D. None of the above

Explanation

Question 19 of 32

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Q3. Which of the following is a characteristic of mechanical screwjack actuators:

Select one of the following:

  • A. Quick response

  • B. Slow response

  • C. Low aerodynamic loads

  • D. A and C are correct

Explanation

Question 20 of 32

1

Q4. Which of the following is not a characteristic of electrical power axis:

Select one of the following:

  • A. Great cost

  • B. No high pressure fluid needed

  • C. Great Maintenance

  • D. High power ( in relation weight/power)

Explanation

Question 21 of 32

1

Q5. If the stick force gradient is:
5.1- too high: the pilots get over tired
5.2- too low: danger for over- stressing the airframe

Select one of the following:

  • A) Both are correct

  • B) 5.2 is correct

  • C) 5.1 is correct

  • D) Both incorrect

Explanation

Question 22 of 32

1

Q6.The actuator power is provided by a _______ phase constant speed ______motor
driving a variable displacement hydraulic pump that provides the hydraulic pressure to
power the actuator ram.

Select one of the following:

  • A. two, electrical

  • B. three, electrical

  • C. three, combustion

  • D. four, electrical

Explanation

Question 23 of 32

1

Q7. Which of the following is not a trim technique without tabs:

Select one of the following:

  • A. Horn

  • B. Hinge axis displacement

  • C. Anti-tab

  • D. Non of the above

Explanation

Question 24 of 32

1

Q8. Which of the following is a leading edge flap:

Select one of the following:

  • A. Split flap

  • B. Flower flap

  • C. Plain flap

  • D. Kruger flap

Explanation

Question 25 of 32

1

Q9.The electric shift is traditionally employed by displacing:

Select one of the following:

  • A. Flaps

  • B. Landing gear

  • C. Trim

  • D. A and C are both correct

Explanation

Question 26 of 32

1

Q10. The direct drive is:

Select one of the following:

  • A. An element which allows a movement being the flexible part the electric engine
    rotor.

  • B. The backlash

  • C. The jamming

  • D. None of the above

Explanation

Question 27 of 32

1

Q11. What is the main advantage of using fibre optic links?

Select one of the following:

  • A. It has no electromagnetic effect

  • B. It is lighter than wive

  • C. It is cheaper than wive

  • D. It doesn’t have any advantage

Explanation

Question 28 of 32

1

Q12. Some advantages of using fibre optic links?

Select one of the following:

  • A. Are lighter

  • B. Are easier to maintain

  • C. Are safer

  • D. None of the above

Explanation

Question 29 of 32

1

Q13. Fly-by-wire actuator. First generation may operate in 3 distinct modes. Choose de
false answer.

Select one of the following:

  • A. Full FBN mode

  • B. Direct Electrical Link Mode

  • C. Mechanical Reversion Mode

  • D. Crew Mode

Explanation

Question 30 of 32

1

Q14. True or false. Jamming: problems due to contacts

Select one of the following:

  • A. True

  • B. False

Explanation

Question 31 of 32

1

Q15. The flight control proccesators are found in:

Select one of the following:

  • A. Fly-by-wire

  • B. Hidraulic transmission

  • C. Cable and pulley transmission

  • D. None of the above

Explanation

Question 32 of 32

1

Q16.Which is the main mission of an LVDT:

Select one of the following:

  • A. Transform a position of the hammer into an electrical signal

  • B. Calculate the movement of the hammer in a hydraulic way

  • C. Transmit the orders of the flight controls in an electric way

  • D. Transform an electrical signal into a movement of the pile driver

Explanation

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