Automobile Engineering in ME
The indicated power of a four stroke engine (in watts) is equal to (where P = Mean effective pressure in N/m², L = Length of stroke in metres, A = Cross-sectional area of the piston in m², and N = Speed of the engine in revolutions per second (r.p.s)

2 × P.L.A.N
P.L.A.N/4
P.L.A.N/2
P.L.A.N

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Automobile Engineering in ME
A basic difference between the spark ignition engine and the Diesel engine is that the

Air temperature ignites the fuel in the Diesel engine
Diesel engine compresses air alone instead of an air-fuel mixture
All of these
Fuel is sprayed into the combustion chamber in the Diesel engine as the piston nears T.D.C. on the compression stroke

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Automobile Engineering in ME
The crankcase dilution means

Dilution of lubrication oil by fuel in the crankcase D. Dilution
Dilution of fuel in the crankcase
Dilution of mixture passing through crankcase in two stroke engines
Dilution of oil by water in the crankcase

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

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

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