Question 25Motor Plants - Assistant Engineer

The correct answer is C) burn fuel in a closed chamber which imparts linear motion to pistons. Diesel engines are classified as reciprocating internal combustion engines because they burn fuel in a closed combustion chamber, which causes the pistons to move back and forth (reciprocate) in a linear motion. This linear motion is then converted into rotational motion to drive the engine's crankshaft. The other answer choices are incorrect because: A) describes an external combustion engine, B) does not accurately describe the operating principle of a diesel engine, and D) describes a continuous combustion process, which is not how a diesel engine operates.