Question 624Steam Plants - Assistant Engineer70% to pass
In order to obtain the best performance with a lube oil purifier, the lube oil inlet temperature should _______________.
AI Explanation
The correct answer is C) be maintained in a temperature range of 160°F to a maximum of 180°F.
This is the correct answer because lube oil purifiers operate most efficiently within this temperature range. Maintaining the lube oil inlet temperature within this range helps ensure optimal separation of contaminants and water from the oil, which is the primary function of the purifier. Temperatures outside this range can reduce the purifier's effectiveness.
The other answer choices are incorrect because: A) the normal lube oil cooler outlet temperature may not necessarily be the ideal temperature for the purifier; B) the highest main engine bearing temperature is not the relevant factor for purifier performance; and D) the main lube oil sump temperature may not match the ideal temperature range for the purifier.
Related Questions
#622 In the operation of a lube oil clarifier, the position of the oil/water interface should be _______________.#623 Of the many impurities commonly found in marine lubricating oil, which of the following CANNOT be removed by a centrifugal purifier at normal operating speeds and temperatures? #625 The water seal in a centrifuge, operating at normal speed, prevents the lube oil from discharging from the water outlet. Another function of the seal is to _______________.#626 A centrifuge will satisfactorily remove which of the listed substances from lube oil? #627 In order to maintain the effectiveness of the lube oil centrifuge to remove water, the engineer in charge should _______________.