Question 137General Subjects - 1st Asst/Chief70% to pass
If the bearings of a piece of machinery are fed by a gravity feed lubricating oil system, what statement is true?
AI Explanation
The correct answer is A.
In a gravity feed lubricating oil system, the lube oil pump draws oil from the lube oil reservoir/sump and discharges it to the lube oil gravity tank. The oil then gravity feeds the bearings, and the return oil drains back to the lube oil reservoir/sump. This allows the system to rely on gravity to circulate the oil through the bearings without requiring the pump to be constantly running.
The other options are incorrect because they do not accurately describe the flow of oil in a gravity feed system. Option B has the pump discharging directly to the bearings instead of the gravity tank, option C has the return oil draining to the reservoir instead of the gravity tank, and option D has the return oil draining to the gravity tank instead of the reservoir.
Related Questions
#135 In a forced-feed lubrication system, what statement is true concerning lube oil reservoir/sump residence time? #136 On a bearing using an oiling ring as means of static oil feed, unless adverse conditions would indicate otherwise, how often should the oil be completely changed at a minimum? #138 A bearing using an oiling ring as a means of static oil feed must occasionally be serviced by removing the wear particles, grit, and moisture. How is this accomplished? #139 On a bearing using an oiling ring as a means of static oil feed, how often should the bottom of the bearing sump be drained of impurities? #140 Which of the following statements best describes the filtering ability of a fine mesh metal lube oil strainer?