Automobile Engineering in ME
The main feature of Macpherson strut suspension is that

The unsprung mass in lighter
Non vertical external forces are supported by the suspension arms
The assembly is slightly more complicated in design
The vertical size of the suspension can be made more compact

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Automobile Engineering in ME
The purpose of a cylinder head gasket is to

Prevent engine oil from going into combustion chamber
Removes impurities from cylinder head lubricating oil
None of these
Prevent the combustion gases from leaking from the joint between the cylinder block and the cylinder head

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