Question

when crackers are ignited what type of ignition takes place

Answer 1

Crackers on ignition produce rowdy sound. This is happens due to the chemical reaction that takes place when the cracker is ignited. It is due to the reason that when the gunpowder is suppressed in any way then the gas present in it is released with a large popping sound.
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Answer 2

$\huge{\mathfrak{\purple{Question}}}$

What are the differences between spark ignition and compression ignition?

$\huge{\mathfrak{\purple{Answer}}}$

Spark and compression ignitions are totally different mechanical technologies that are used in engines. Engines that use spark ignition technology are called as spark ignition engines (SI engines), and the others are known as compression ignition engines (CI engines). These two methods of ignition are used in engines in their combustion stroke.

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