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When do we need to Filter the oil regardless of its condition?
Monthly
Half-yearly
Yearly
After 2 year
After 2 year
Quick Summary: Practice and solve "When do we need to Filter the oil regardless of its condition?..." for Electrical - Economics for Engineers. The correct answer is Option D: After 2 year. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(d) **