Automobile Engineering in ME
The heat transfer from coolant to air in the radiator of an automobile engine takes place by

Conduction, convection and radiation
Convention only
Convection and radiation
Radiation only

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Automobile Engineering in ME
In bias ply tyres

All of these
Belts of steel mesh are used in the tyres
All plies run parallel to one another
One ply layer runs diagonally one way and another layer runs diagonally the other way

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