Practice Cumulative Usage and Costs per Hour - 3.4 | 16. Economic Life of a Machine | Construction Engineering & Management - Vol 1
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3.4 - Cumulative Usage and Costs per Hour

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define economic life in your own words.

💡 Hint: Think about the meaning of cost-effectiveness in operating machinery.

Question 2

Easy

What are the main reasons for costs to increase after economic life?

💡 Hint: Consider factors affecting the machine's usability over time.

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 the economic life of a machine?

  • Time when maintenance costs are minimum
  • Duration before significant cost increases
  • Time when the machine can be sold for maximum value

💡 Hint: Consider the term 'economic'.

Question 2

True or False: Cumulative costs per hour decrease as the usage of a machine increases.

  • True
  • False

💡 Hint: Think about how expenses are allocated.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A machine is purchased at ₹45,00,000 with a 10-year lifespan. Calculate its depreciation at the end of the fifth year using the double declining balance method.

💡 Hint: First calculate the depreciated value after the previous year, then apply the formula.

Question 2

An old excavator has been used for 4,000 hours with increasing maintenance costs each year: year 1 = ₹50,000, year 2 = ₹70,000, year 3 = ₹90,000. Calculate the average maintenance cost per hour at this point.

💡 Hint: Total the costs, then divide by total usage.

Challenge and get performance evaluation