The life of a ball bearing at a load of 10 kN is 8000 hours. If the lo – McqOptions

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1.	The life of a ball bearing at a load of 10 kN is 8000 hours. If the load is increased to 20 kN, keeping all other conditions the same, then its life in hours is
A.	4000
B.	2000
C.	1000
D.	500
Answer» D. 500

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