Question 153Steam Plants - QMED70% to pass
In a pressure type main propulsion turbine lubrication system, the lube oil service pumps normally take suction from the main sump and discharge directly to the _______________.
AI Explanation
The correct answer is B) lube oil coolers.
In a pressure type main propulsion turbine lubrication system, the lube oil service pumps normally take suction from the main sump and discharge directly to the lube oil coolers. This arrangement allows the lube oil to be cooled before it is distributed to the various lubrication points, such as the main thrust bearing, within the system. The lube oil coolers are a critical component in maintaining the proper temperature of the lubricating oil, which is essential for the proper functioning and longevity of the turbine machinery.
The other answer choices are incorrect because: A) the main thrust bearing is a lubrication point, not the destination of the lube oil from the service pumps; C) the gravity feed tank is not the typical discharge point for the lube oil service pumps; and D) the lube oil header is a distribution point, not the final destination of the lube oil from the service pumps.
Related Questions
#151 Which of the following precautions should be taken prior to lighting off a boiler? #152 While raising steam on a cold boiler, the air cock is to be closed after _______________.#154 Which of the conditions listed should be immediately reported to the engineering officer on watch? #155 The jacking gear on main propulsion turbines can be used to _______________.#156 Under what circumstances would a propulsion steam turbine turning (jacking) gear most likely be used?