Practice Replacement Cost Estimates - 3.1 | 16. Economic Life of a Machine | Construction Engineering & Management - Vol 1
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is economic life?

💡 Hint: Think about the phrase 'minimum cost of holding'.

Question 2

Easy

What is one reason machines become obsolete?

💡 Hint: Consider what happens when new machines are introduced.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is economic life?

  • The time period over which costs are minimized
  • The time period over which repairs are maximum
  • The time period before machine failure

💡 Hint: Think 'minimized costs' when referring to economic life.

Question 2

True or False: Obsolescence affects a machine's salvage value.

  • True
  • False

💡 Hint: Obsolescence and value are interconnected.

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Challenge Problems

Push your limits with challenges.

Question 1

Calculate the total replacement cost after four years for a machine starting at 35,00,000 with 2,10,000 annual increases. Also, factor in a depreciation of 1,00,000 per year after its third year.

💡 Hint: Sum all increases and account for depreciation appropriately.

Question 2

If a machine has a downtime cost of 500 per hour and it is down for 30 hours due to repairs, calculate the total downtime loss.

💡 Hint: Multiply the hourly cost by the total hour lost.

Challenge and get performance evaluation