If a certain aircraft engine cylinder has a volume of 100 cubic centimeters w the piston at the bottom of its stroke and a volume of 10 cubic centimeters the top of its stroke , what is the compression ratio of the cylinder? 11:1 . 10:2 10:1 9:1

## Step 1:The compression ratio of an engine is defined as the ratio of the volume of its cylinder, with the piston at the bottom of its stroke (bottom dead center), to the volume of the cylinder with the piston at the top of its stroke (top dead center).## Step 2:In this problem, the volume of the cylinder at the bottom dead center is given as 100 cubic centimeters, and at the top dead center, it is given as 10 cubic centimeters.## Step 3:To find the compression ratio, we divide the volume at the bottom dead center by the volume at the top dead center.### **Compression Ratio = **## Step 4:Substituting the given values into the formula, we get:### **Compression Ratio = **## Step 5:Simplify the fraction:### **Compression Ratio = 10**