Automobile Engineering in ME
The condition that causes vapour locking in a brake system is

Keeping the vehicle without use for an extended period
Overheating of the fluid due to frequent brake application
An excessively high engine speed on a downhill road
Overcooling of the brakes during high speed driving

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Automobile Engineering in ME
In bias ply tyres

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
All of these

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