There are more than two hydraulic devices that an auto machanic is familiar with but one of the is the braking system of a car and the other is the automatic transmissions of a car.
A car lift and a jack
hydraulic car lift and hydraulic tire changer
car lift; jack
Car lift and a Jack
The brake system and the power steering system.
"An auto mechanic" is correct, and "a auto mechanic" is not. "Auto" begins with a vowel - typically, these will be preceded by "an" rather than "a".
enviroment for auto mechanic?
An auto mechanic is a mechanic which specializes in auto repair and repair focused on cars and motorized vehicles. I believe you are meaning a car mechanic also.
No, you do not have to be a boy to be an auto mechanic. Women can also become auto mechanics.
training required for auto mechanic
An auto mechanic repairs cars. Usually the drive-train, brakes, and engine.
Yes, auto mechanics does have to finish schooling to be a licensed auto mechanic. You don't have to have schooling to work as a mechanic but if something goes wrong with someone's car then you would be liable like a licensed mechanic.