Question 34Motor Plants - Assistant Engineer

The correct answer is B) the inside diameter of the cylinder. The bore of a diesel engine cylinder refers to the inside diameter of the cylinder, which is a key specification that determines the engine's displacement and power output. The bore, along with the piston stroke length, defines the volume of the cylinder and the amount of air/fuel mixture that can be combusted during each engine cycle. The other options are incorrect because they do not directly describe the bore. Option A refers to the swept volume, option C describes the piston displacement, and option D is the length of the piston stroke - none of which are the same as the cylinder bore.