Ismael Vázquez
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AVIÓNICA Quiz on 03. 7. ACGA_L01-L09_2017, created by Ismael Vázquez on 28/03/2018.

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Ismael Vázquez
Created by Ismael Vázquez over 6 years ago
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03. 7. ACGA_L01-L09_2017

Question 1 of 30

1

What is the purpose of cabin pressurization difference?
pg29

Select one of the following:

  • a) Gain weight

  • b) Comfort

  • c) To avoid explosive depressurization

  • d) More oxygen

Explanation

Question 2 of 30

1

One of the main problems of cabin pressurization is:
pg29

Select one of the following:

  • a) Corrosion

  • b) Fatigue

  • c) Wear

  • d) Impure oxygen

Explanation

Question 3 of 30

1

Stagnation temperature related to mach in the leading edge:
pg29

Select one of the following:

  • a) Tt= T(1+0,2M2)

  • b) Tt=T(1-0,2M2)

  • c) Tt=T(1+0,2M3)

  • d) Tt=T(1-0,2M3)

Explanation

Question 4 of 30

1

Subsonic flights needs more _______ and supersonic flights need more ______
PG29

Select one of the following:

  • a) Warm air/warm air

  • b) Cold air/ cold air

  • c) Cold air/warm air

  • d) Warm air/cold air

Explanation

Question 5 of 30

1

Ways a cockpit is heated

Select one of the following:

  • a) Sun

  • b) Avionics

  • c) Cinematically

  • d) All the above

Explanation

Question 6 of 30

1

The CAU is made up of:
pg29

Select one of the following:

  • a) Cooling turbine

  • b) Water extractor

  • c) Heat exchanger

  • d) All of above

Explanation

Question 7 of 30

1

There is a water extractor in the CAU to
pg29

Select one of the following:

  • a) Get rid of fog

  • b) Get rid of smoke/fumes

  • c) Eliminate corrosion

  • d) A and C

Explanation

Question 8 of 30

1

Classification of ignition systems:
pg32

Select one of the following:

  • a) Batery-ignition and magneto-ignition.

  • b) Batery-ignition, magneto-ignition and electronic FADEC.

  • c) Magneto-ignition and electronic FADEC.

  • d) All are false

Explanation

Question 9 of 30

1

Mark the true:

Select one of the following:

  • a) The magneto is a type of engine-driven CC generator.

  • b) Aviationonlyusesmagneto-ignition.

  • c) The magneto is a type of engine-driven AC generator.

  • d) All are correct.

Explanation

Question 10 of 30

1

Types of starting systems:
pg32

Select one of the following:

  • a) Inertia starters and direct cranking electric starter.

  • b) Inertia starter and magneto starter.

  • c) Inertia starters, direct cranking electric starter and battery starter.

  • d) Direct cranking electric starter and battery starter.

Explanation

Question 11 of 30

1

Mark the false:
pg33

Select one of the following:

  • a) Inertia starters were usually used in old aircrafts.

  • b) Direct cranking electric starter is based on an electric motor.

  • c) Nowadays battery-ignition systems are used in aviation.

  • d) FADEC system is an electronic ignition system with only one moving
    part.

Explanation

Question 12 of 30

1

Functions of lubrication system:
pg33

Select one of the following:

  • a) Reduce friction created between the moving parts of the engine.

  • b) Protection for corrosion.

  • c) Heating the engine.

  • d) a) and b).

Explanation

Question 13 of 30

1

Viscosity:
pg33

Select one of the following:

  • a) Isn’t temperature dependent.

  • b) Doesn’t affect for the lubrication system.

  • c) Balance between thin and thick.

  • d) In the Pour Point begins to solidify.

Explanation

Question 14 of 30

1

Viscosity:

Select one of the following:

  • a) The Pour Point is the lowest to temperature for flowing.

  • b) SAE system is a classification according to the oil viscosity.

  • c) There are some oils prepared to work in a larger intervals of
    temperature called multigrade oils.

  • d) All of them.

Explanation

Question 15 of 30

1

1. Alternate engines:
pg34

Select one of the following:

  • A) needs a propeller to generate motion

  • B) are internal combustion technology

  • C) produce thrust by themselves

  • D) a and b are correct

Explanation

Question 16 of 30

1

2. main advantage of the radial distribution of an alternative aviation engine:
pg34

Select one of the following:

  • A) produces more power

  • B) produces more thrust

  • C) is more easily cooled by the air flow

  • D) weighs less

Explanation

Question 17 of 30

1

3. Which is not a phase of a four-stroke engine
pg34

Select one of the following:

  • A) power

  • B) exaust

  • C) intake

  • D) dispersion

Explanation

Question 18 of 30

1

4. in the compression phase of a four-stroke engine:
pg34

Select one of the following:

  • A) explosion forces piston down

  • B) air-fuel mixture is drawn in

  • C) piston pushed out burned gases

  • D) air-fuel mixture is compressed

Explanation

Question 19 of 30

1

5. the valves of an alternative motor
pg34

Select one of the following:

  • A) open and close exactly in bdc and tdc

  • B) they open exactly in the bdc but do not close exactly in the tdc

  • C) they open exactly in the tdc but do not close exactly in the bdc

  • D) open and close but not exactly at the points bdc and tdc

Explanation

Question 20 of 30

1

6. the moment of ignition
pg34

Select one of the following:

  • A) ensures the minimum pressure on the tdc

  • B) varies with engine speed

  • C) a and b are true

  • D) a and b are false

Explanation

Question 21 of 30

1

7. the fins on the cylinders of an alternate engine were introduced for
pg34

Select one of the following:

  • A) make the engine more aesthetic

  • B) cooling the engine by reducing the weight

  • C) complementary to liquid cooling

  • D) all of the above are correct

Explanation

Question 22 of 30

1

8. why engaging an odd number of pistons in radial engines
pg34

Select one of the following:

  • A) to ensure that there is always a piston performing a job

  • B) get more power

  • C) the weight is decreased

  • D) decreases the number of possible engine failures

Explanation

Question 23 of 30

1

1. ¿What is the most common engine in aviation?
pg35

Select one of the following:

  • a) Two-stroke gasoil.

  • b) Two-stroke gasoline.

  • c) Four-stroke gasoil.

  • d) Four-stroke gasoline.

Explanation

Question 24 of 30

1

2. Crankcase:
pg35

Select one of the following:

  • a) Light and strong.

  • b) Heavy and big temperature resistance.

  • c) Magnesium alloy.

  • d)Alloy of ( Cr, Ni, Mo).

Explanation

Question 25 of 30

1

3. Pistons.

Select one of the following:

  • a) Strong and heat tranferers.

  • b) Strong but not heat transferers.

  • c) Smaller than cylinders

  • d) A and C are correct.

Explanation

Question 26 of 30

1

4. Pistons rings
.pg35

Select one of the following:

  • a) Same size than pistons.

  • b) They fit into the piston groves but spring out to press against the cylinder wall

  • c) Made of aluminium alloy.

  • d) Used just in radial engines.

Explanation

Question 27 of 30

1

5. Cylinders.
pg35

Select one of the following:

  • a) Surplus oil retention above the ring.

  • b) Link to transmit forces between the piston and the crankshaft.

  • c) Provide the combustion chamber where the burning and expansion of gases take place.

  • d) Single-piece or multipiece.

Explanation

Question 28 of 30

1

6. Crankshaft.
pg35

Select one of the following:

  • a) It supports the engine in the airframe.

  • b) It provides mounting face for certain accessorie.

  • c) Transform the reciprocating motion of the piston and connection rod into rotary for
    rotation of the propeller.

  • d) Nitrided steel alloys to support pressure and hot gases.

Explanation

Question 29 of 30

1

7. Wrigth’s flyer engine was made in:
pg35

Select one of the following:

  • a) 1907

  • b) 1903

  • c) 1904

  • d) 1901

Explanation

Question 30 of 30

1

8. About IN LINE cylinders arrangements why was better in "V"?

Select one of the following:

  • a) Easier manufacture.

  • b) Lower vibration and more compact unit.

  • c) Lower maintenance.

  • d) They produce more power.

Explanation

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