Car Engine Basics Quiz

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Questions and Answers

Which part of the engine converts the linear motion of the piston to a rotational force?

  • Camshafts
  • Valves
  • Crankshaft (correct)
  • Pistons

What is the main purpose of the valves in an engine?

  • Control the flow of air and fuel into the cylinders (correct)
  • Convert linear motion to rotational force
  • Push the Pistons down
  • Hold the timing belt in place

What drives the intake and exhaust camshafts in an engine?

  • The valves
  • The timing belt (correct)
  • The Pistons
  • The crankshaft

Which type of engine is commonly found in most hatchback and sedan cars?

<p>Inline 4-cylinder DOHC engine (C)</p> Signup and view all the answers

How many strokes does a four-stroke engine go through?

<p>Four strokes (A)</p> Signup and view all the answers

ما هي الأسطوانة المحدودة في كم من الهواء يمكن أن يتنفس؟

<p>الأسطوانة التي تحتوي على كمية غير كافية من الهواء للتنفس (B)</p> Signup and view all the answers

ما هو السبب وراء عدم قدرة الأسطوانة على استيعاب المزيد من الهواء؟

<p>صغر حجم الأسطوانة (A)</p> Signup and view all the answers

ما هو الهدف الرئيسي لصانعي المحركات عندما يرغبون في المزيد من الهواء؟

<p>تحسين أداء المحرك (C)</p> Signup and view all the answers

ماذا يعني مصطلح 'حجم أو النزوح' في النص؟

<p>حجم الأسطوانة (D)</p> Signup and view all the answers

ما هي الأسطوانة التي يرغب صانعو المحركات فيها المزيد من الهواء؟

<p>الأسطوانة التي تحتوي على الهواء الكافي للتنفس (A)</p> Signup and view all the answers

Flashcards

Crankshaft

The rotating shaft that converts the linear motion of the pistons into rotational force, which powers the vehicle.

Engine Valves

Components that control the flow of air and fuel into the cylinders, ensuring proper combustion.

Timing Belt

A belt that synchronizes the rotations of the crankshaft and camshafts, ensuring proper valve timing.

Inline 4-cylinder Engine

An engine with four cylinders arranged in a single row, commonly found in budget-friendly cars.

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Four-stroke Engine

An engine that completes four distinct steps during its combustion cycle: intake, compression, power, and exhaust.

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Cylinder Breathing

The amount of air that can be drawn into a cylinder during its intake stroke.

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Cylinder Capacity

The maximum volume of air a cylinder can hold, determined by its size.

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Engine Breathing

The ability of an engine to draw in more air, improving its performance and power.

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Engine Displacement

The volume of air displaced by the piston during one stroke.

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Good Breathing Cylinder

A cylinder that can draw in a sufficient amount of air during its intake stroke, leading to better performance.

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Study Notes

Turbocharging Basics

  • A turbocharger utilizes the wasted energy in the exhaust gases to drive the turbine, which in turn drives the compressor to compress air into the engine's cylinders.

How an Engine Works

  • An engine can be thought of as a large pump, drawing in air and fuel into a cylinder, compressing and igniting it, and then expelling the exhaust gases.

Increasing Engine Power

  • To obtain more power from an engine, more fuel needs to be burned, and this requires more air.
  • Simply providing more fuel is not enough; there also needs to be more air to support combustion.

Turbocharging Principle

  • The turbocharger allows for more air to be drawn into the engine, enabling more fuel to be burned, resulting in increased power and speed.

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