65. While ascending a hill, the driver of the vehicle keeps the gear ratio A.Equal to 1 B.Less than 1 C.Greater than 1 D.Either equal to or greater than 1
Option D Solution: While ascending a hill Gear Ratio should be “Either equal to or greater than 1. Gear Ratio is the ratio between angular velocity of input gear to the angular velocity of output gear. It prevents the vehicle from stalling.
