Engine : General Subjects - 82/1128 |
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Which of the following statements describes the characteristics of precision manufactured roller bearings? |
A) They have a relatively high power loss due to friction. |
B) They are not capable of maintaining alignment over long periods of time. |
C) Their lubrication is complicated and requires constant attention. |
D) They are well adapted to variable speed operation. |
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Sakthi mano - 2021-11-28 08:28:20 Registered (1) |
What is first aid |