Pregunta 1
Pregunta
What is the purpose of cabin pressurization difference?
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Pregunta 2
Pregunta
One of the main problems of cabin pressurization is:
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Respuesta
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a) Corrosion
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b) Fatigue
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c) Wear
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d) Impure oxygen
Pregunta 3
Pregunta
Stagnation temperature related to mach in the leading edge:
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Respuesta
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a) Tt= T(1+0,2M2)
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b) Tt=T(1-0,2M2)
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c) Tt=T(1+0,2M3)
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d) Tt=T(1-0,2M3)
Pregunta 4
Pregunta
Subsonic flights needs more _______ and supersonic flights need more ______
PG29
Respuesta
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a) Warm air/warm air
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b) Cold air/ cold air
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c) Cold air/warm air
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d) Warm air/cold air
Pregunta 5
Pregunta
Ways a cockpit is heated
Respuesta
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a) Sun
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b) Avionics
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c) Cinematically
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d) All the above
Pregunta 6
Pregunta
The CAU is made up of:
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Respuesta
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a) Cooling turbine
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b) Water extractor
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c) Heat exchanger
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d) All of above
Pregunta 7
Pregunta
There is a water extractor in the CAU to
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Pregunta 8
Pregunta
Classification of ignition systems:
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Respuesta
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a) Batery-ignition and magneto-ignition.
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b) Batery-ignition, magneto-ignition and electronic FADEC.
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c) Magneto-ignition and electronic FADEC.
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d) All are false
Pregunta 9
Respuesta
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a) The magneto is a type of engine-driven CC generator.
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b) Aviationonlyusesmagneto-ignition.
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c) The magneto is a type of engine-driven AC generator.
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d) All are correct.
Pregunta 10
Pregunta
Types of starting systems:
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Respuesta
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a) Inertia starters and direct cranking electric starter.
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b) Inertia starter and magneto starter.
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c) Inertia starters, direct cranking electric starter and battery starter.
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d) Direct cranking electric starter and battery starter.
Pregunta 11
Pregunta
Mark the false:
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Respuesta
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a) Inertia starters were usually used in old aircrafts.
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b) Direct cranking electric starter is based on an electric motor.
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c) Nowadays battery-ignition systems are used in aviation.
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d) FADEC system is an electronic ignition system with only one moving
part.
Pregunta 12
Pregunta
Functions of lubrication system:
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Pregunta 13
Respuesta
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a) Isn’t temperature dependent.
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b) Doesn’t affect for the lubrication system.
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c) Balance between thin and thick.
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d) In the Pour Point begins to solidify.
Pregunta 14
Respuesta
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a) The Pour Point is the lowest to temperature for flowing.
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b) SAE system is a classification according to the oil viscosity.
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c) There are some oils prepared to work in a larger intervals of
temperature called multigrade oils.
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d) All of them.
Pregunta 15
Pregunta
1. Alternate engines:
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Respuesta
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A) needs a propeller to generate motion
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B) are internal combustion technology
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C) produce thrust by themselves
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D) a and b are correct
Pregunta 16
Pregunta
2. main advantage of the radial distribution of an alternative aviation engine:
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Pregunta 17
Pregunta
3. Which is not a phase of a four-stroke engine
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Respuesta
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A) power
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B) exaust
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C) intake
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D) dispersion
Pregunta 18
Pregunta
4. in the compression phase of a four-stroke engine:
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Respuesta
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A) explosion forces piston down
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B) air-fuel mixture is drawn in
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C) piston pushed out burned gases
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D) air-fuel mixture is compressed
Pregunta 19
Pregunta
5. the valves of an alternative motor
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Respuesta
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A) open and close exactly in bdc and tdc
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B) they open exactly in the bdc but do not close exactly in the tdc
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C) they open exactly in the tdc but do not close exactly in the bdc
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D) open and close but not exactly at the points bdc and tdc
Pregunta 20
Pregunta
6. the moment of ignition
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Pregunta 21
Pregunta
7. the fins on the cylinders of an alternate engine were introduced for
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Respuesta
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A) make the engine more aesthetic
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B) cooling the engine by reducing the weight
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C) complementary to liquid cooling
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D) all of the above are correct
Pregunta 22
Pregunta
8. why engaging an odd number of pistons in radial engines
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Respuesta
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A) to ensure that there is always a piston performing a job
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B) get more power
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C) the weight is decreased
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D) decreases the number of possible engine failures
Pregunta 23
Pregunta
1. ¿What is the most common engine in aviation?
pg35
Respuesta
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a) Two-stroke gasoil.
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b) Two-stroke gasoline.
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c) Four-stroke gasoil.
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d) Four-stroke gasoline.
Pregunta 24
Pregunta
2. Crankcase:
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Respuesta
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a) Light and strong.
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b) Heavy and big temperature resistance.
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c) Magnesium alloy.
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d)Alloy of ( Cr, Ni, Mo).
Pregunta 25
Respuesta
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a) Strong and heat tranferers.
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b) Strong but not heat transferers.
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c) Smaller than cylinders
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d) A and C are correct.
Pregunta 26
Pregunta
4. Pistons rings
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Respuesta
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a) Same size than pistons.
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b) They fit into the piston groves but spring out to press against the cylinder wall
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c) Made of aluminium alloy.
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d) Used just in radial engines.
Pregunta 27
Pregunta
5. Cylinders.
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Respuesta
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a) Surplus oil retention above the ring.
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b) Link to transmit forces between the piston and the crankshaft.
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c) Provide the combustion chamber where the burning and expansion of gases take place.
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d) Single-piece or multipiece.
Pregunta 28
Pregunta
6. Crankshaft.
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Respuesta
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a) It supports the engine in the airframe.
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b) It provides mounting face for certain accessorie.
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c) Transform the reciprocating motion of the piston and connection rod into rotary for
rotation of the propeller.
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d) Nitrided steel alloys to support pressure and hot gases.
Pregunta 29
Pregunta
7. Wrigth’s flyer engine was made in:
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Respuesta
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a) 1907
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b) 1903
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c) 1904
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d) 1901
Pregunta 30
Pregunta
8. About IN LINE cylinders arrangements why was better in "V"?