Question 70Motor Plants - 1st Asst/Chief70% to pass
The rate of cylinder lubricating oil metered to each cylinder of a large, low-speed, main propulsion diesel engine is _______________.
AI Explanation
The correct answer is D) reduced during periods of low load operation.
The rate of cylinder lubricating oil metered to each cylinder of a large, low-speed, main propulsion diesel engine is typically reduced during periods of low load operation. This is because the engine requires less lubrication when operating at lower loads, as there is less wear and tear on the engine components. Reducing the cylinder lubricating oil during low load operation helps to optimize the engine's efficiency and minimize unnecessary oil consumption.
The other options are incorrect because: A) the lubricating oil rate is not adjusted hourly at constant RPM, B) the rate is not lower at sea compared to maneuvering, and C) the rate is not the same regardless of operating conditions.
Related Questions
#68 The device shown in figure "A" of the illustration is used to _______________. Illustration MO-0042 #69 The illustrated device is used to_______________. Illustration MO-0050 #71 One advantage of a vacuum feed sight glass indicator used on cylinder lubricators over the discharge side liquid filled type sight glass is _______________.#72 Mechanical lubricators for diesel engine cylinders are usually small reciprocating pumps which are _______________.#73 A 'Blotter test' is a test performed on the lube oil of a diesel engine which can determine_______________.