Test
03. 7. ACGA_L01-L09_2017
Preguntas del test (30)
1What is the purpose of cabin pressurization difference?
pg29- Aa) Gain weight
- Bb) Comfort
- Cc) To avoid explosive depressurization
- Dd) More oxygen
2One of the main problems of cabin pressurization is:
pg29- Aa) Corrosion
- Bb) Fatigue
- Cc) Wear
- Dd) Impure oxygen
3Stagnation temperature related to mach in the leading edge:
pg29- Aa) Tt= T(1+0,2M2)
- Bb) Tt=T(1-0,2M2)
- Cc) Tt=T(1+0,2M3)
- Dd) Tt=T(1-0,2M3)
4Subsonic flights needs more _______ and supersonic flights need more ______
PG29- Aa) Warm air/warm air
- Bb) Cold air/ cold air
- Cc) Cold air/warm air
- Dd) Warm air/cold air
5Ways a cockpit is heated
- Aa) Sun
- Bb) Avionics
- Cc) Cinematically
- Dd) All the above
6The CAU is made up of:
pg29- Aa) Cooling turbine
- Bb) Water extractor
- Cc) Heat exchanger
- Dd) All of above
7There is a water extractor in the CAU to
pg29- Aa) Get rid of fog
- Bb) Get rid of smoke/fumes
- Cc) Eliminate corrosion
- Dd) A and C
8Classification of ignition systems:
pg32- Aa) Batery-ignition and magneto-ignition.
- Bb) Batery-ignition, magneto-ignition and electronic FADEC.
- Cc) Magneto-ignition and electronic FADEC.
- Dd) All are false
9Mark the true:
- Aa) The magneto is a type of engine-driven CC generator.
- Bb) Aviationonlyusesmagneto-ignition.
- Cc) The magneto is a type of engine-driven AC generator.
- Dd) All are correct.
10Types of starting systems:
pg32- Aa) Inertia starters and direct cranking electric starter.
- Bb) Inertia starter and magneto starter.
- Cc) Inertia starters, direct cranking electric starter and battery starter.
- Dd) Direct cranking electric starter and battery starter.
11Mark the false:
pg33- Aa) Inertia starters were usually used in old aircrafts.
- Bb) Direct cranking electric starter is based on an electric motor.
- Cc) Nowadays battery-ignition systems are used in aviation.
- Dd) FADEC system is an electronic ignition system with only one moving
part.
12Functions of lubrication system:
pg33- Aa) Reduce friction created between the moving parts of the engine.
- Bb) Protection for corrosion.
- Cc) Heating the engine.
- Dd) a) and b).
13Viscosity:
pg33- Aa) Isn’t temperature dependent.
- Bb) Doesn’t affect for the lubrication system.
- Cc) Balance between thin and thick.
- Dd) In the Pour Point begins to solidify.
14Viscosity:
- Aa) The Pour Point is the lowest to temperature for flowing.
- Bb) SAE system is a classification according to the oil viscosity.
- Cc) There are some oils prepared to work in a larger intervals of
temperature called multigrade oils. - Dd) All of them.
151. Alternate engines:
pg34- AA) needs a propeller to generate motion
- BB) are internal combustion technology
- CC) produce thrust by themselves
- DD) a and b are correct
162. main advantage of the radial distribution of an alternative aviation engine:
pg34- AA) produces more power
- BB) produces more thrust
- CC) is more easily cooled by the air flow
- DD) weighs less
173. Which is not a phase of a four-stroke engine
pg34- AA) power
- BB) exaust
- CC) intake
- DD) dispersion
184. in the compression phase of a four-stroke engine:
pg34- AA) explosion forces piston down
- BB) air-fuel mixture is drawn in
- CC) piston pushed out burned gases
- DD) air-fuel mixture is compressed
195. the valves of an alternative motor
pg34- AA) open and close exactly in bdc and tdc
- BB) they open exactly in the bdc but do not close exactly in the tdc
- CC) they open exactly in the tdc but do not close exactly in the bdc
- DD) open and close but not exactly at the points bdc and tdc
206. the moment of ignition
pg34- AA) ensures the minimum pressure on the tdc
- BB) varies with engine speed
- CC) a and b are true
- DD) a and b are false
217. the fins on the cylinders of an alternate engine were introduced for
pg34- AA) make the engine more aesthetic
- BB) cooling the engine by reducing the weight
- CC) complementary to liquid cooling
- DD) all of the above are correct
228. why engaging an odd number of pistons in radial engines
pg34- AA) to ensure that there is always a piston performing a job
- BB) get more power
- CC) the weight is decreased
- DD) decreases the number of possible engine failures
231. ¿What is the most common engine in aviation?
pg35- Aa) Two-stroke gasoil.
- Bb) Two-stroke gasoline.
- Cc) Four-stroke gasoil.
- Dd) Four-stroke gasoline.
242. Crankcase:
pg35- Aa) Light and strong.
- Bb) Heavy and big temperature resistance.
- Cc) Magnesium alloy.
- Dd)Alloy of ( Cr, Ni, Mo).
253. Pistons.
- Aa) Strong and heat tranferers.
- Bb) Strong but not heat transferers.
- Cc) Smaller than cylinders
- Dd) A and C are correct.
264. Pistons rings
.pg35- Aa) Same size than pistons.
- Bb) They fit into the piston groves but spring out to press against the cylinder wall
- Cc) Made of aluminium alloy.
- Dd) Used just in radial engines.
275. Cylinders.
pg35- Aa) Surplus oil retention above the ring.
- Bb) Link to transmit forces between the piston and the crankshaft.
- Cc) Provide the combustion chamber where the burning and expansion of gases take place.
- Dd) Single-piece or multipiece.
286. Crankshaft.
pg35- Aa) It supports the engine in the airframe.
- Bb) It provides mounting face for certain accessorie.
- Cc) Transform the reciprocating motion of the piston and connection rod into rotary for
rotation of the propeller. - Dd) Nitrided steel alloys to support pressure and hot gases.
297. Wrigth’s flyer engine was made in:
pg35- Aa) 1907
- Bb) 1903
- Cc) 1904
- Dd) 1901
308. About IN LINE cylinders arrangements why was better in "V"?
- Aa) Easier manufacture.
- Bb) Lower vibration and more compact unit.
- Cc) Lower maintenance.
- Dd) They produce more power.
Información
- Descripción
- AVIÓNICA Test sobre 03. 7. ACGA_L01-L09_2017, creado por Ismael Vázquez el 28/03/2018.
- Autor
- Ismael Vázquez
- Idioma
- Español
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