Assertion: parking brake | /r/ObjectUse | used for car
Facets:
value: normally
type: DEGREE
Source sentences:
text: For cars the "hand brake" is normally used only for parking, but for trucks and trains, the hand brake is used for trucks when the air brakes fail (almost impossible, as a failure of air pressure would apply the brakes - the air pressure is used to hold the brakes off), and on older railroad cars that only have manual, hand used brakes - you had to go from car to car to apply the brakes.