The most simple and practical design of a valve is a flap that keeps liquid from going into one direction, but allows it to freely flow in another direction. The name for this particular valve is called a check valve.
There isn't an egr valve on an 02 Trans Am. The engine received upgrades from the Corvette that year that allowed for the egr valve to be deleted from the design.
The absence of a shut off valve for the shower may be due to the design of the plumbing system. Some showers are designed without a shut off valve to regulate water flow, relying instead on the main water supply valve for control. This design choice may be for simplicity or cost-saving reasons.
That depends on the design of the valve.
No, you cannot install a Schrader valve in a Presta rim as they are not compatible due to differences in size and design.
In an automobile engine : Over Head Valve ( its a pushrod design engine )
A Schrader valve is wider and more common on car tires, while a Presta valve is narrower and often used on bicycle tires. The main difference is in the size and design of the valve, which requires different types of pumps to inflate the tires.
Only if it has a WOG rating that is with in the design of the system
An improved 'flushing' system for the toilet. In particular the ball valve system
Depends entirely upon the valve design and how it has failed. I would guess that it needs either simple cleaning/descaling or replacing, not repair.
A presta valve works in a bicycle tire by using a small, threaded valve stem that is opened and closed by unscrewing or screwing a small nut at the top of the valve. This design helps to create a secure seal and allows for high-pressure inflation of the tire.
DOHC
It's probably valve. The valve team also has steam. Inside steam you can use the level/map editor to design a new map with stuffs!