쉐도잉 연습: Aircraft General Knowledge | PPL Expert Online Ground School FREE Sample - 영상으로 영어 말하기 배우기
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Welcome to PPExpert, my name is Tom and I'll be presenting the Aircraft General Knowledge course.
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This course is designed to give you an in -depth understanding
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on the theory required to pass the CAA theory exam for this particular topic.
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Despite this, own self -study, commitment, and discipline will be required.
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The course is displayed in the form of a slideshow which I'll be talking through.
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Please feel free to pause the recording at any point to either take a break
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or write down any notes
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so now we're going to look at the contents of what we're going to cover in the subject
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so we're going to cover the airframe of the aircraft the aircraft engine itself
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and its components the carburetor aircraft systems so how they will work
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and instrumentation okay and all these will be covered in more detail
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which is applicable to the PPL syllabus for the exams
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so the major components of an aeroplane are the fuselage
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which is the main body where the passengers sit the wings
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which create the lift tail assembly which is the horizontal
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and the vertical stabilizer flight controls so how we maneuver the aircraft the landing gear
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which absorbs the weight of the aircraft and the engine
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and the propeller okay
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so we're gonna go through all of these in more detail
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first of all though we're going to look at the fuselage
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so the main body of the aircraft and it is the main structure to
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which all other components are attached okay
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so all the other all the other components are attached to
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the fuselage the fuselage is the main the main part of it now different aircraft have different construction techniques
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but most light aircraft are of a semi monocop construction
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and we'll go through what that means next
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so first of all what is a monocoque construction
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and a monocoque construction is when the skin of
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that structure is the entire weight bearing structure
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so the skin has all the strength in it to hold
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a shape the way it is okay there are formers inside used to keep the shape
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but they aren't structural bearing it's the skin itself that holds the weight of the aircraft
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and its strength effectively so an example of this maybe could be something like an egg
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if you were to hold an egg
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and squeeze it really hard it's probably unlikely to break
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but once that shell cracks then the structural integrity of the egg is broken
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and that's similar to a monocoque construction where the skin holds all the rigidity and strength within the structure.
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Then we have a semi -monocoque construction.
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The way this works is there's a lightweight framework inside which
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that supports the skin and it's the combination of the framework and the skin itself which will give the structure strength.
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So it's a combination between formers and skin
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that improves the strength of any structure if the skin is damaged that means
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that not necessarily the whole structure will be compromised in strength
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as it's got sort of almost two layers of protectivity
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and most aircraft use make use of this technique as it offers the most redundancy
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if anything were to get damaged so next we're going look at the wings
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so the wings itself are the component that create lift
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and they're exposed to very heavy loads
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and those loads are well in excess of the aircraft's weight
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itself the main structure of the wing is a central spa
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which is where all the strength within the wing lies okay
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and it can carries the loads vertically upwards and downwards
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and then from the spa there's also ribs
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which often stiffen the skin of the wing itself
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and they help transfer some of the load
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so it just increases the structural integrity of the aircraft
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so here's a diagram of a wing construction
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so you've got the skin itself which offers some strength you've got the main spar
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which is the most load -bearing part and then the ribs itself
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which offers some strength in a perpendicular direction okay
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and all of these together is what increases the strength within the aircraft
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So different aircraft have different wing designs and it's by and large to their purpose.
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So you can see that some aircraft have a lower wing, some aircraft have a higher wing or some aircraft have a biplane design, so dual wings.
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They all perform the same purpose
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and it will have very slight characteristic differences between the handling of these aircraft but by
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and large they all perform exactly the same in terms of
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creating lift it's just a different way of constructing an aircraft
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so next we can look at the tail
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or otherwise known as the empennage
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and it consists of two elements okay we've got horizontal stabilizer
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and a vertical stabilizer okay
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and most conventional is the horizontal stabilizer lower down with a vertical stabilizer going up
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and it's better because it's easily accessible for checking on the ground
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but it's more susceptible from turbulence from the wings there are also t tail designs where the horizontal stabilizer is higher up
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and that means it's clear of that turbulence so it's slightly smoother to control
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however it's inaccessible on the ground it's harder to check for damage on the pre -flights
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and also a high detail design is susceptible to a steep stall
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which is talked about in principles of flight
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so just um some housekeeping about securing an aircraft
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so we want to secure the aircraft facing into the wind
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if possible we should tie it down as well if we can
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so tight to the floor to make sure it's not gonna move around want to lock the control services
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and that's a lock within the aircraft
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which means the control services aren't free to move around covering
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the pitot tube with a cover as well as in all engine openings
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and we'll talk about some of these elements later on in AGK and
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if you need out just refer to the pilots handbook where
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it will give the best way to do all of these things
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so next we're going to look at cabin ventilation
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so how the cockpit of the aircraft gets ventilated with warm
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and cooler air so for cooler air there's normally a vent
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which just opens up to the outside where fresh air flow
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can flow into the cockpits providing the cooler air from the
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outside inside the cabin warmer however it's obviously much hotter to come by
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and it's taken from around the engine so there's a shroud around the exhaust
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and that air is heated by the exhaust which is then pumped into the cabin as hot air.
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We just need to be careful that because it's taken from around the exhaust
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if there was any pipes damaged in regards to the exhaust then
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that exhaust gas could leak into the air ventilation system
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and therefore cause carbon monoxide poisoning which can be deadly
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if exposed to and that's why we have carbon monoxide poisoners
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which we'll look at next so it's just being aware
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that all the hot air is coming from around the engine
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and the gases associated with that
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so as I said carbon monoxide poisoning could be present
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if there's a leak in the exhaust system and therefore the ventilation
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so we just need to be aware of it it's we talk more about it in human performance
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and limitations but some of the symptoms could be a headache, dizziness, nausea, a deterioration of vision,
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slow breathing, unconsciousness and eventually if we don't do anything about it death.
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Okay so we do need to be aware of it
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if we'd start experiencing some of these symptoms we want to open the cabin air vents
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and let that fresh air from the outside come in
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so we're not exposed to much of that hotter air which could possibly have carbon monoxide poisoning in it.
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We also have detectors in the aircraft in two forms one is a alarm just like a fire alarm
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and also we have this one as well
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which is a yellow orange circle and once carbon monoxide has been detected
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that orange circle will start to get some black dots on it
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so now we're going to look at an aircraft engine okay
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and more specific to the kind of engines that we will be using
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which are piston engines
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so we'll we'll actually be using the aircraft we fly there's lots of different types of piston engine aircrafts
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so different the way they're built and their purposes However, most engines in general aviation are horizontally opposed,
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and we'll look at that later on.
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Normally engines for aviation are specifically designed.
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They have higher tolerances, they're generally stronger,
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lighter to save weight, and they have more reliability let's see.
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So the first engine we're going to look at is a radial engine.
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And the cylinders in the radial engine are arranged around a central crankshaft.
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So they're all the way around a central point.
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They're quite large in diameter.
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And what this does is it allows for a high number of cylinders in a small space okay
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so they've got high power to size generally they're quite complex and they're quite prone to malfunction they're generally found on
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older aircraft they're not yet used too much nowadays
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but they do up a lot of power
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which is why they were used some years ago the next kind of engine is a straight four
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so instead of being horizontally opposed it's vertically opposed it's very
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simple design it's easy to access all the certain parts of the engine however it's not very space efficient
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so it's quite large in size it's a lot of wasted space underneath the cowling
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and they are ultimately a little bit heavier than the engines
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that we use nowadays and these will be generally found on smaller but older aircraft
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so we also have diesel engines and these are very modern uh engines the way
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that they're produced however they run off diesel
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or more commonly jets a1 fuel
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and the advantage of this is a lot cheaper to run
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it's a lot cheaper fuel it's a lot stronger as well
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and they're often based off car engines
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which are then adapted for aviation however the disadvantage with this is they do require heavy turbochargers to give it
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that extra power so they're generally a heavier engine
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but then they are more reliable and cheaper to run an aircraft on as well
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so more commonly what will be used is a horizontally opposed
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so that means the cylinders will be moving in a horizontal direction
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and normally a four cylinder or possibly a six cylinder on the aircraft
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and this is the most common type of engine it's very lightweight it's simple
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and that's what is the best for aviation to save weights
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and to make it easy to maintain
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so now we're going to look at the piston engine in
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a bit more detail as you need to know it for the CA exam
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and how it works and all the elements to it
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but the main purpose of the cylinder
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or the cylinder piston engine is to create chemical energy
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so petrol or fuel into kinetic energy so into a energy
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that we can use the crankshaft which is the central point of the engine
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and the connecting rod which is connects the cylinder
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and the piston converts horizontal motion into a rotary motion
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so that's what the cylinders are horizontally opposed within a piston engine
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and the the crankshaft will turn
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that horizontal motion into a rotary motion to turn a propeller
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or some kind of drive shaft
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so we need to look at the the stages of a
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four -stroke cylinder engine also known as the auto cycle
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and there's four main stages you need to know now in
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a four cylinder engine this these won't all happen at the same time all happen simultaneously
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So one cylinder will be doing one event, the other cylinder will be doing another.
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So the first stage is called the intake stage.
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Now that's where there's two valves.
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There's got an inlet valve where air -fuel mixture comes in, and then we've got an exhaust valve.
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And you can see those on the first number one picture, there's those two sort of T -looking shapes.
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The inlet valve is the top one, the exhaust valve is the bottom one.
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We've also got two magnetos as well, which are those things on the side of the cylinder wall, and then we've got the piston head,
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the cone rod, and the crankshaft lower down.
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So in the first stage, the piston moves down within the...
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이 레슨의 어휘와 말하기 포인트
이 영상에는 섀도잉할 문장 181개와 단어 2150개가 있습니다. 말하는 구간의 길이는 14:33입니다. 화자는 분당 약 148단어의 일정한 속도로 말해서 섀도잉하기에 편한 속도입니다. 단어의 82%가 영어에서 가장 많이 쓰이는 3,000단어에 속합니다. 나머지는 연습 전에 미리 확인해 두세요.
이 영상의 핵심 어휘
영상에 나오는 익혀 둘 만한 단어 15개를 발음, 뜻과 함께 정리했습니다.
| 단어 | 발음 | 뜻 |
|---|---|---|
| cylinder 명사 | /ˈsɪləndɚ/ | 원기둥, 실린더 |
| horizontal 형용사 | /ˌhoɹəˈzɑn.təl/ | 가로의, 수평의 |
| component 명사 | /kəmˈpoʊ.nənt/ | 부분 |
| valve 명사 | /ˈvælv/ | 밸브 |
| aviation 명사 | /ˌeɪ̯.viːˈeɪ̯.ʃən/ | 항공, 비행 |
| cabin 명사 | /ˈkæbɪn/ | 소옥, 오두막집 |
| ventilation 명사 | /ˌvɛntɪˈleɪʃ(ə)n/ | 통풍, 환기 |
| tail 명사 | /ˈteɪ̯l/ | 꼬리 |
| vertical 형용사 | /ˈvɝ.tɪ.kəl/ | 수직의 |
| poison 명사 | /ˈpɔɪ.zən/ | 독 |
| connect 동사 | /kəˈnɛkt/ | 잇다, 연결하다 |
| alarm 명사 | /əˈlɑɹm/ | 경보 |
| examination 명사 | /ɪɡˌzæm.ɪˈneɪ.ʃən/ | 진찰, 검사 |
| nowadays 부사 | /ˈnaʊ.ə.deɪz/ | 요즘 |
| leak 명사 | /liːk/ | 누설, 루설 |
영상에 나오는 구동사
| 단어 | 뜻 |
|---|---|
| go up 동사 | 올라가다 |
| write down 동사 | 적다, 적어 두다 |
이 영상의 문법
화자가 가장 많이 쓰는 문형을 영상 속 실제 표현과 함께 정리했습니다.
| 문형 | 영상 속 표현 |
|---|---|
| 수동태 be + 과거분사 — 누가 하는지보다 무슨 일이 일어나는지에 초점 | is designed · will be required · is displayed |
| 관계절 who / which + 절 — 사람이나 사물에 대한 추가 정보 | assembly which is · itself which will · exhaust which is |
주의할 발음
화자는 they're, we're, we'll 같은 축약형과 약화된 형태를 45번 사용합니다. 들리는 대로 짧게 발음하세요.
- “th” 소리: smooth /smuːð/, breathe /bɹiːð/, underneath /ˌʌndɚˈniθ/
- “sh”와 “zh” 소리: aviation /ˌeɪ̯.viːˈeɪ̯.ʃən/, ventilation /ˌvɛntɪˈleɪʃ(ə)n/, structural /ˈstɹʌk(t͡)ʃəɹəl/, examination /ɪɡˌzæm.ɪˈneɪ.ʃən/, efficient /ɪˈfɪʃənt/
- 긴 단어 — 강세 위치에 주의: horizontal /ˌhoɹəˈzɑn.təl/, aviation /ˌeɪ̯.viːˈeɪ̯.ʃən/, ventilation /ˌvɛntɪˈleɪʃ(ə)n/, examination /ɪɡˌzæm.ɪˈneɪ.ʃən/, integrity /ɪnˈtɛɡɹəti/
이 영상으로 연습하는 방법
- 먼저 말하지 않고 영상을 끝까지 듣고 모르는 단어를 적어 둡니다.
- 보통 속도로 한 문장씩 섀도잉하고, 화자의 리듬과 맞을 때까지 반복합니다.
- 자신의 목소리를 녹음해 원본과 비교하고, cylinder, horizontal, component 같은 단어에 특히 주의합니다.
쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법
쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.












