Practice Shuttle Loading - 2.2.3 | 7. Cycle Time of a Scraper | Construction Engineering & Management - Vol 2
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2.2.3 - Shuttle Loading

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is cycle time?

💡 Hint: Think about all the tasks it performs.

Question 2

Easy

Define fixed time in cycle time.

💡 Hint: Which part of the timing is consistent regardless of distance?

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 included in the cycle time of a scraper?

  • Only loading and dumping time
  • Loading
  • hauling
  • dumping
  • return
  • etc.
  • Only hauls and returns

💡 Hint: Think of all tasks the scraper completes during its operation.

Question 2

True or False: All cycle time components are variable.

  • True
  • False

💡 Hint: Consider which times depend on distance.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A scraper has a fixed loading time of 0.8 min, increased resistance when over 85% loading leads to an effective new loading time of 1.5 min after that point. Calculate the difference in cycle time if loading 90% payload is attempted.

💡 Hint: Consider the totality of the cycle time when calculating efficiencies.

Question 2

Given varying haul route conditions affecting machine speed, calculate the haul time if the distance is 200 meters and average speed is 10 m/s. Adjust for resistance factors diminishes speed to 7 m/s.

💡 Hint: How do different speeds impact the time taken to cover the same distance?

Challenge and get performance evaluation