Internal Combustion Engine Concepts

The video provides an in-depth look at internal combustion engines, covering their history, components, and working principles. It explains the differences between four-stroke and two-stroke engines, both petrol and diesel, and compares their advantages and disadvantages. Key components like the cylinder, piston, and crankshaft are detailed, along with the processes of intake, compression, power, and exhaust strokes. The video concludes with a comparison of engine types, highlighting efficiency and power differences.

Who created the first modern internal combustion engine known as the Auto Engine?

• Karl Benz

• Nicos A

• ATN Lenor

• Henry Ford

What is the primary function of piston rings in an internal combustion engine?

• To ignite the fuel

• To cool the engine

• To seal the combustion chamber

• To connect the piston to the crankshaft

In a four-stroke petrol engine, what initiates the ignition of the petrol-air mixture?

• Fuel injector

• Crankshaft

• Piston

• Spark plug

What is the main difference between a four-stroke diesel engine and a four-stroke petrol engine?

• Diesel engines use a fuel injector

• Petrol engines use a fuel injector

• Petrol engines have no exhaust stroke

• Diesel engines use a spark plug

In a two-stroke petrol engine, what happens during the first stroke?

• The spark plug ignites the mixture

• The piston compresses the air-fuel mixture

• The exhaust port opens

• The piston moves downward

Which type of engine generally has a higher power output for the same size, two-stroke or four-stroke?

• Depends on the fuel type

• Two-stroke

• Four-stroke

• Both have the same power output

What is a disadvantage of two-stroke engines compared to four-stroke engines?

• Higher thermal efficiency

• Lower fuel consumption

• Higher lubricating oil consumption

• More complex gear arrangement

Why do two-stroke engines generally have more wear and tear compared to four-stroke engines?

• They use less lubricating oil

• Their valve gear operates at twice the speed

• They have fewer moving parts

• They operate at a lower speed

What is one advantage of a two-stroke engine over a four-stroke engine?

• Lower cylinder temperature

• Less noise during operation

• Simpler gear arrangement for reversing

• Higher thermal efficiency

In terms of space and weight, how do two-stroke engines compare to four-stroke engines?

• Two-stroke engines are heavier and larger

• Four-stroke engines are lighter and smaller

• Both are the same in size and weight

• Two-stroke engines are lighter and smaller