Practice Estimation of Cycle Time - 1.7 | 7. Cycle Time of a Scraper | Construction Engineering & Management - Vol 2
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Estimation of Cycle Time

1.7 - Estimation of Cycle Time

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is cycle time?

💡 Hint: Think about all the steps involved in using a scraper.

Question 2 Easy

What does ADBT stand for?

💡 Hint: Focus on the speed-related components.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What are the components of cycle time?

Loading
Hauling
Dumping
Hauling
Returning
Spotting
All of the Above

💡 Hint: Think about each step involved in using the scraper.

Question 2

True or False: Loading a scraper to maximum capacity will always increase its productivity.

True
False

💡 Hint: Consider how material dynamics work in a confined space.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Calculate the cycle time if a scraper has the following times: LT = 0.8 min, HT = 3.5 min, DT = 1.2 min, RT = 2.3 min, ST = 0.5 min, TT = 0.25 min. Consider also ADBT = 0.15 min. What is the total cycle time?

💡 Hint: Add all the specified times together following the formula.

Challenge 2 Hard

A project has two haul routes, one taking 5 min to traverse and the other taking 3 min. The loader takes 2 min, dump time is 1 min, and return time is 4 min. What can be done to reduce the cycle time?

💡 Hint: Identify the longest process and see how you can enhance its efficiency.

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