diameter
depends on your definition of "smallest" depends on your definition of "smallest"
Area of a circle is pi*(radius)². Pi is a dimensionless constant (approximately 3.14). Radius is 1/2 of the diameter, so if you replace radius with diameter/2, then you get (3.14)*(dia/2)² = (3.14/4)*(dia)², or approx. (0.785)*(diameter)²
4"
Diameter of the piston head.
You reduce the diameter of the small piston. Or reduce the diameter and increase the travel of the small piston if you want the large piston to maintain it's previous range of travel.
If the size of the piston is increased, the power will increase. If it is decreased, the power will decrease.
A 1/2 diameter piston moves 10 inches with 30 lbs force how far will it move with 6 inch diameter piston and how much weight will it lift
Someone told me a micrometer?
9.4247 cubic inches
bore is the diameter of the piston and stroke is the length the piston moves in the cylinder.for example if bore x stroke is 1x3 then 1 is the diameter of the piston and 3 is the length of the cylinder.if bore is greater than stroke then it is a short stroke engine.
To get the area of a piston, you need to measure the diameter or radius of the piston head and use the formula for the area of a circle (A = πr^2) where r is the radius of the piston head. Once you have the radius, plug it into the formula to calculate the area of the piston head.