Practice Loading And Operating Conditions (3.4) - Earth Moving Equipment-Scrapers (Part-2)

Practice: Loading and Operating Conditions

Lesson 3.4Earth Moving Equipment-Scrapers (Part-2)

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9 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the swell factor?
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Think about how volume changes when soil is disturbed.
Question 2.
Why is it important to not exceed the safe operating weight?
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Consider the consequences of overloading.
3Question 3.
What is the definition of swell factor?
- A. The maximum weight a machine can handle
- B. The ratio of loose dry unit weight to bank dry unit weight
- C. The total time taken to complete a cycle
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Think about how the weight varies as soil is handled.
4Question 4.
True or False: A pusher can serve multiple scrapers efficiently.
- True
- False
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Consider how many scrapers share the load.
Question 5.
Calculate the total time for a scraper with a cycle time of 7.78 minutes operating with a pusher of 1.37 minutes, taking into account loading, dumping, and travel times. How many scrapers should be operational for optimal efficiency?
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Break down the components of time and consider the operational limits.
Question 6.
If a hauling path increases gradient resistance to 30 kg per ton instead of 20 kg per ton, how would this affect the overall productivity of the scrapers? Calculate the impact on the estimated productivity.
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Consider how resistance prevents movement and slows down the loading process.

5 more questions in this section. Enroll free to practise them all.