Engine : General Subjects - 1239/1128
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| As the speed of an oil lubricated ball bearing increases, fluid friction, due to churning, generates heat. This condition may be avoided by __________. |
| A) reducing the quantity of lubricant until only a mist of oil is present on the ball bearings |
| B) installing oil rings on the ball bearings |
| C) adding more lubricant until the ball bearings are completely covered with a layer of oil |
| D) maintaining a continuous fluid film of oil on the bearings |
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