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Discussion

As an asset is kept longer, its operating and maintenance cost per year generally

  • A.rises then falls again
  • B.rises
  • C.falls
  • D.stays constant

Answer: B

Correct answer: rises

Maintenance grows as parts wear, breakdowns become more frequent, efficiency falls and downtime increases. This is the force pulling towards earlier replacement, and the balance between it and the falling capital recovery is what produces an economic life at all.

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