Questão 1
Questão
Which is not an anti-ice system?
Questão 2
Questão
Which are the de-icing types?
Questão 3
Questão
Who is the last responsible for having the wings free of ice?
Responda
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A. Flight engineer
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B. Pilot in command
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C. Air hostesses
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D. De-icing Ground Crew
Questão 4
Questão
Pneumatic de-icing boots are:
Responda
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A. A shaped rubber sleeve that conforms to leading edge which is attached.
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B. A shaped rubber sleeve that is attached to the leading edge of propellers
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C. Devices which can optimize aerodynamic efficiency
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D. Devices which its interior is full of glycol
Questão 5
Questão
. Which is the main difference between an anti-ice and a de-ice system?
Responda
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A. There is not any difference
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B. De-ice system does not exist.
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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
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D. The anti-ice prevent ice accretion while the de-ice eliminates the ice
Questão 6
Questão
Which of this statements about the pitot heat is true?
Responda
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A. The pitot heat is not an esential system in commercial aviation
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B. The pitot heat prevents and eliminates the ice accretion does not matter the ambiential conditions
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C. Pitot heat is usually part of the anti-ice system in the aircraft
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D. Pitot heat usually consists in a electrical resistor.
Questão 7
Questão
. How many types of de-icing systems exist?
Responda
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A. Three: wets, cyclic and regressive.
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B. Four: evaporate, cyclic, kinetic and regressive.
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C. Three: evaporative, wets and cyclic.
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D. Four: wets, cyclic, kinetic and evaporative.
Questão 8
Questão
.Which of the following is a type of windshield de-icing?
Questão 9
Questão
Advantages of hydraulic system
Questão 10
Questão
Disadvantages of hydraulic system
Questão 11
Questão
Definition of hydraulics
Responda
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A. Science that studies the equilibrium (Hydrostatic) and dynamics of liquids (Hydrodynamics).
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B. Science that studies the possibility of using air in systems.
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C. Science that studies the forces involved when an aircraft flies
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D. Science that studies how the environment changes when an aircraft flies throughout it.
Questão 12
Questão
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:
Responda
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A. Newton´s Law
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B. Pascal´s Law
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C. Bernouigi´s Law
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D. Mach´s Law
Questão 13
Questão
The F18´s operating pressure is:
Responda
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A. 3000 psi
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B. 4000 psi
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C. 2000 psi
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D. 1450 psi
Questão 14
Questão
Which of the following is not a type of pump?
Questão 15
Questão
. Choose the wrong answer: functions of hydraulic accumulators
Responda
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A. Store energy (high pressure fluid)
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B. Provide fluid/pressure in case of emergency/failure of pump
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C. Avoid thermal expansion of the fluid
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D. Cater for small internal leaks
Questão 16
Responda
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A. Is the third turbine you can find in a 727 or DC10
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B. Add extra propulsion to the plane if the main engines fail
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C. Provides electrical and mechanical power if main resources fail
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D. Are specially common in jet fighters and not used in civil airliners
Questão 17
Questão
RAM turbines are:
Responda
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A. To provide electrical and mechanical power if main sources fail
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B. Installed inside the engines
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C. Useless
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D. A kind of turbine engine
Questão 18
Questão 19
Questão
Compared to pneumatic systems:
Responda
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A. Hydraulic control is easier as there are no compressibility effects.
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B. Hydraulic systems work continuously, being noisier.
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C. Compressors are usually more expensive than pumps.
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D. All of the above
Questão 20
Questão
. Hydraulic fluids can be:
Responda
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A. Vegetable-Based
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B. Mineral-based
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C. Synthetic-based
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D. All of the above
Questão 21
Questão
Electrically operated pumps operate at a pressure of:
Responda
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A. 2000 – 4500 psi
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B. 3050 – 3600 psi
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C. 1000 – 2850 psi
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D. 2850 – 3050 psi
Questão 22
Questão
In closed hydraulic systems:
Questão 23
Responda
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A. Compensate leaks
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B. Act as a thermal regulator
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C. Are used normally and in emergencies
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D. All of the above are correct
Questão 24
Questão
About temperature
Responda
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A. Pneumatics can work at higher temperature.
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B. Pneumatics can work at lower temperature.
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C. Hydraulics can work at higher temperature.
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D. Pneumatics are not affected by temperature.
Questão 25
Questão
Aircraft surfaces must be designed to suffer in flight aerodynamic degradation due to the ice formation
Responda
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A. Yes, always.
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B. Yes, but not during take off.
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C. No, never.
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D. Yes, but not during landing.
Questão 26
Questão
Which of the following are windscreen rain removal systems?
Responda
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A. Curved and rear-sloping windscreen
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B. Windshield wipers
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C. Rain repellent: for torrential rain conditions
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D. All of the above are correct
Questão 27
Questão
Which of the following are types of ice?
Questão 28
Questão
. A safe flight must take also into account possible weather hazards that might be encountered. These can be of different types:
Questão 29
Responda
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A. Is the Combination of glaze and rime ice
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B. Can not occur today
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C. Take place in clouds with temperature transitionfrom small to large supercooled water droplets.
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D. Options A and C are true
Questão 30
Responda
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A. It is a Transparent air free sheet
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B. We can see in flight in dense clouds of small supercooled water droplets
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C. It has an opaque white structure due to air trapped between droplets
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D. It has an opaque white structure due to the viscosity of the types of droplets
Questão 31
Questão
Effects of ice accretion on an aircraft
Responda
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A. Weight increases
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B. Alteration of airfoil shape
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C. Loss of control due to freeze in the joints between control surfacesand wings / tailplanes
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D. All of the above are correct
Questão 32
Questão
About frost/Hoar frost…
Responda
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A. Ice crystals from sublimation when water vapour freezes
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B. Ice crystals from condensation when water vapour freezes
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C. Black crystaline structure
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D. It does form a heavy blanket but roughens the surface increaseaerodynamic performances