Quiz by Ismael Vázquez, created more than 1 year ago

AVIÓNICA Quiz on 92.Semana de Ortega, created by Ismael Vázquez on 04/04/2018.

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92.Semana de Ortega

92.Semana de Ortega

Question 1 of 32

1

Which is not an anti-ice system?

Select one of the following:

A. Hot bleed air
B. Strong movements of the rudder
C. Electrical heating
D. Liquid ice protection

Explanation

Question 2 of 32

1

Which are the de-icing types?

Select one of the following:

A. Evaporative, wets and cyclic
B. Movements and heat
C. Evaporative and drys
D. Only cyclic

Explanation

Question 3 of 32

1

Who is the last responsible for having the wings free of ice?

Select one of the following:

A. Flight engineer
B. Pilot in command
C. Air hostesses
D. De-icing Ground Crew

Explanation

Question 4 of 32

1

Pneumatic de-icing boots are:

Select one of the following:

A. A shaped rubber sleeve that conforms to leading edge which is attached.
B. A shaped rubber sleeve that is attached to the leading edge of propellers
C. Devices which can optimize aerodynamic efficiency
D. Devices which its interior is full of glycol

Explanation

Question 5 of 32

1

. Which is the main difference between an anti-ice and a de-ice system?

Select one of the following:

A. There is not any difference
B. De-ice system does not exist.
C. The anti ice system allow ice accretion and when is activated shed the ice or melt the ice, while a de-ice system prevent ice accretion
D. The anti-ice prevent ice accretion while the de-ice eliminates the ice

Explanation

Question 6 of 32

1

Which of this statements about the pitot heat is true?

Select one of the following:

A. The pitot heat is not an esential system in commercial aviation
B. The pitot heat prevents and eliminates the ice accretion does not matter the ambiential conditions
C. Pitot heat is usually part of the anti-ice system in the aircraft
D. Pitot heat usually consists in a electrical resistor.

Explanation

Question 7 of 32

1

. How many types of de-icing systems exist?

Select one of the following:

A. Three: wets, cyclic and regressive.
B. Four: evaporate, cyclic, kinetic and regressive.
C. Three: evaporative, wets and cyclic.
D. Four: wets, cyclic, kinetic and evaporative.

Explanation

Question 8 of 32

1

.Which of the following is a type of windshield de-icing?

Select one of the following:

A. Fluid de-icing
B. Electrical anti-icing
C. Pneumatic System
D. All of them are correct

Explanation

Question 9 of 32

1

Advantages of hydraulic system

Select one of the following:

A. Ability to obtain large forces
B. Force amplification
C. Accurate control
D. All above are right

Explanation

Question 10 of 32

1

Disadvantages of hydraulic system

Select one of the following:

A. Not useful for small forces
B. Temperature range limited
C. Expensive components
D. All above are right

Explanation

Question 11 of 32

1

Definition of hydraulics

Select one of the following:

A. Science that studies the equilibrium (Hydrostatic) and dynamics of liquids (Hydrodynamics).
B. Science that studies the possibility of using air in systems.
C. Science that studies the forces involved when an aircraft flies
D. Science that studies how the environment changes when an aircraft flies throughout it.

Explanation

Question 12 of 32

1

The pressure exerted anywhere in a confined incompressible fluid is transmitted equally in all directions throughout the fluid such that the pressure ratio (initial difference) remains the same. This is the definition of:

Select one of the following:

A. Newton´s Law
B. Pascal´s Law
C. Bernouigi´s Law
D. Mach´s Law

Explanation

Question 13 of 32

1

The F18´s operating pressure is:

Select one of the following:

A. 3000 psi
B. 4000 psi
C. 2000 psi
D. 1450 psi

Explanation

Question 14 of 32

1

Which of the following is not a type of pump?

Select one of the following:

A. Hand pump
B. Electrically operated pump
C. Engine-driven pump
D. Stealth pump

Explanation

Question 15 of 32

1

. Choose the wrong answer: functions of hydraulic accumulators

Select one of the following:

A. Store energy (high pressure fluid)
B. Provide fluid/pressure in case of emergency/failure of pump
C. Avoid thermal expansion of the fluid
D. Cater for small internal leaks

Explanation

Question 16 of 32

1

RAM Air Turbine

Select one of the following:

A. Is the third turbine you can find in a 727 or DC10
B. Add extra propulsion to the plane if the main engines fail
C. Provides electrical and mechanical power if main resources fail
D. Are specially common in jet fighters and not used in civil airliners

Explanation

Question 17 of 32

1

RAM turbines are:

Select one of the following:

A. To provide electrical and mechanical power if main sources fail
B. Installed inside the engines
C. Useless
D. A kind of turbine engine

Explanation

Question 18 of 32

1

Seals:

Select one of the following:

A. Prevent fluid passing a certain point
B. Keep air and dirt out of the system
C. Both of the above
D. None of the above

Explanation

Question 19 of 32

1

Compared to pneumatic systems:

Select one of the following:

A. Hydraulic control is easier as there are no compressibility effects.
B. Hydraulic systems work continuously, being noisier.
C. Compressors are usually more expensive than pumps.
D. All of the above

Explanation

Question 20 of 32

1

. Hydraulic fluids can be:

Select one of the following:

A. Vegetable-Based
B. Mineral-based
C. Synthetic-based
D. All of the above

Explanation

Question 21 of 32

1

Electrically operated pumps operate at a pressure of:

Select one of the following:

A. 2000 – 4500 psi
B. 3050 – 3600 psi
C. 1000 – 2850 psi
D. 2850 – 3050 psi

Explanation

Question 22 of 32

1

In closed hydraulic systems:

Select one of the following:

A. The actuation is slow
B. The hydraulic pressure is the nominal one (maximum) all the time
C. Only one service can be obtained at a time
D. All of the above

Explanation

Question 23 of 32

1

RESERVOIRS

Select one of the following:

A. Compensate leaks
B. Act as a thermal regulator
C. Are used normally and in emergencies
D. All of the above are correct

Explanation

Question 24 of 32

1

About temperature

Select one of the following:

A. Pneumatics can work at higher temperature.
B. Pneumatics can work at lower temperature.
C. Hydraulics can work at higher temperature.
D. Pneumatics are not affected by temperature.

Explanation

Question 25 of 32

1

Aircraft surfaces must be designed to suffer in flight aerodynamic degradation due to the ice formation

Select one of the following:

A. Yes, always.
B. Yes, but not during take off.
C. No, never.
D. Yes, but not during landing.

Explanation

Question 26 of 32

1

Which of the following are windscreen rain removal systems?

Select one of the following:

A. Curved and rear-sloping windscreen
B. Windshield wipers
C. Rain repellent: for torrential rain conditions
D. All of the above are correct

Explanation

Question 27 of 32

1

Which of the following are types of ice?

Select one of the following:

A. Clear ice
B. Rain ice
C. Rime ice
D. All of the above are correct

Explanation

Question 28 of 32

1

. A safe flight must take also into account possible weather hazards that might be encountered. These can be of different types:

Select one of the following:

A. structural (gust, hail impact)
B. ice
C. lightnings
D. All of the above are correct

Explanation

Question 29 of 32

1

. Mixed ice…

Select one of the following:

A. Is the Combination of glaze and rime ice
B. Can not occur today
C. Take place in clouds with temperature transitionfrom small to large supercooled water droplets.
D. Options A and C are true

Explanation

Question 30 of 32

1

About Rime ice…

Select one of the following:

A. It is a Transparent air free sheet
B. We can see in flight in dense clouds of small supercooled water droplets
C. It has an opaque white structure due to air trapped between droplets
D. It has an opaque white structure due to the viscosity of the types of droplets

Explanation

Question 31 of 32

1

Effects of ice accretion on an aircraft

Select one of the following:

A. Weight increases
B. Alteration of airfoil shape
C. Loss of control due to freeze in the joints between control surfacesand wings / tailplanes
D. All of the above are correct

Explanation

Question 32 of 32

1

About frost/Hoar frost…

Select one of the following:

A. Ice crystals from sublimation when water vapour freezes
B. Ice crystals from condensation when water vapour freezes
C. Black crystaline structure
D. It does form a heavy blanket but roughens the surface increaseaerodynamic performances

Explanation