Automobile Engineering in ME
The characteristic that is enhanced by the honing of cylinder sleeves inner surface is

Cooling efficiency
Lubrication performance
Resistance to wear
None of these

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Automobile Engineering in ME
The main task of a battery in automobiles is to

Supply electricity to the vehicle's electrical system at all times while the engine is running
Supply a large amount of power to turn the starter motor when the engine is being started
Supply electricity to the alternator
Act as a reservoir or stabilizer of electricity

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