If your temperature gauge indicates hot while driving up a mountain road, you should to prevent vapor lock.

Stop your car and let your engine idle while it cools down. If you shut off the engine altogether, the gasoline in the hot engine may vaporize and you'll have to wait for the engine to cool completely to proceed. This situation is called vapor lock.

False

Explanation:

A bloody footprint or a fingerprint would be considered a transfer stain.A transfer stain is one which occurs from an object coming into contact with already existing bloodstains and will leave swipes transfers behind.A passive stain is one that results from a blood drop,blood flow or blood pool.