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

3.1 - Replacement Cost Estimates

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Practice Questions

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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.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

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.

1 more question available

Challenge Problems

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Challenge 1 Hard

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.

Challenge 2 Hard

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.

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