Question

prtrol is more valtile then dieseal




It is true or false​

Answer 1

Answer:

In petrol engines they use carburetor (Nowadays they are also using Throttle body which works on same principle as carburetor ECM controlled.. Variable venturi) where petrol gets atomized (considering high volatility), and air and fuel mixture is compressed in the compression stroke hence pressure and temperature is increased yet spark is required to ignite this air and fuel mixture that’s why it is also known as spark ignited engine (SI) in which compression ratio is kept lower than diesel engines. Where as in Diesel engine which is also known as compression ignition engines (CI) only air is compressed so that it’s temperature and pressure would rise considerably (compression ratio is kept high in diesel engines for the same). The pressure and temperature would rise to that extend that when fuel is supplied to engine it will self ignite (here for automization injectors are being used to which fuel is supplied in high pressure by the fuel pump). Now if we don’t use spark plug and increase the compression ratio and allow the petrol to gets self ignited considering its low flash point knocking will start taking place, which in return cause severe vibrations and damage to piston, block, con rod and crank shaft.

Now u decide after reading that it is true or false

Answer 2

Answer:

true

Explanation:

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