Final answer:
An inline engine usually has an even number of cylinders and only one crankshaft, making the statement true.
Step-by-step explanation:
True. An inline engine, also known as a straight engine, typically has an even number of cylinders. It can be either liquid or air-cooled and has only one crankshaft, which is positioned either above or below the cylinders. An inline engine, also known as a straight engine or inline configuration, is a type of internal combustion engine where the cylinders are arranged in a straight line along a common crankshaft. In contrast to a V-shaped engine where the cylinders are arranged in two banks forming a V shape, the inline engine has its cylinders in a single row.