Practice Economic Useful Life - 5 | 15. Equipment Life and Replacement Analysis (Part-1) | Construction Engineering & Management - Vol 1
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Economic Useful Life

5 - Economic Useful Life

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Practice Questions

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Question 1 Easy

What does economic useful life refer to?

💡 Hint: Think about the relationship between cost and productivity.

Question 2 Easy

Define the terms defender and challenger in the context of equipment management.

💡 Hint: Consider which machine is currently in operation.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is meant by economic useful life?

The lifespan until the equipment breaks down.
The period where maintenance costs exceed operating costs.
The time when the equipment yields maximum profit.
The duration from purchase to disposal.

💡 Hint: Consider what time frame maximizes profitability.

Question 2

True or False: The defender is the machine that is being considered for replacement.

True
False

💡 Hint: Identify which term applies to the existing equipment.

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Challenge Problems

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Challenge 1 Hard

A company has two excavators: Excavator A has been in service for eight years and has increasing repair costs. Excavator B is a new model that offers 20% more efficiency. How would you decide whether to replace Excavator A with Excavator B?

💡 Hint: Consider not just the immediate costs, but long-term productivity.

Challenge 2 Hard

If the inflation rate is 2% per year and the purchase price of new equipment is expected to rise, how will this affect the economic useful life decision in the next five years?

💡 Hint: Evaluate how future costs will impact the balance sheet.

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