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
Radiation only
Convection and radiation

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Automobile Engineering in ME
When the front wheels of a vehicle are locked during braking, then

Stopping distance becomes extremely long
Driver loses control over the steering, and the vehicle continues moving in its current direction
Front tyres skid across the road surface, and the vehicle spins around
Rear tyres skid across the road surface, and the vehicle spins around

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