Question 72Motor Plants - 1st Asst/Chief

The correct answer is B) adjustable to meet lubrication requirements. Mechanical lubricators for diesel engine cylinders are typically small reciprocating pumps that are designed to be adjustable to provide the appropriate amount of lubrication based on the engine's operating conditions. This allows the lubrication to be tailored to the specific needs of the engine, ensuring adequate lubrication without waste. The other options are incorrect because: A) the lubricators do not need to be operated manually on an hourly basis, C) they are not only used at maximum load, and D) they continue to operate even after the engine has started.