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One sheave means that you are using a single drum winder. They are the worst! Double drum winders control easier, brake better and are much more efficient. They save time ( two skips or cages) and can be clutched to perform faster shift transport. A single drum is slow, unbalanced and can be a nightmare if it trips out during hoisting. If the brake system is not perfect it can be a real hairy experience. For a runaway single drum, there is no counterbalance effect. It always runs to destruction. With a double drum, the driver still has a chance to control the winder to a certain extent and he has two sets of brakes to rely on. A single sheave could also mean a shaft with a single compartment. No second means of escape unless there are ladders or stairways. Not a very healthy situation.
Those are just a few points. I am sure much more can be said in favor of a double drum winder and two or more sheaves in the headgear. Most of the shafts I have worked at have multiple winders and up to ten compartments. They all have a small single drum service winder for emergencies and moves of personnel during shift times. They are referred to as the Mary - Annes. Apparently, the name originated in the U.K. where an aristocratic mine owner named the first such winder after his mistress.
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Judge the quality of any given data can a human till do better and fater than any Machine Learning (ML).
<h3>
What is Machine Learning (ML)?</h3>
- Switch between fields of expertise. a thorough understanding of the facts' meaning. Check the veracity of any information that is provided.
- According to some scientists, AI will replace jobs with a single output. A mental task may also be mechanized in the future if it can be finished by a person in less than a second.
- Expressing empathy, making others feel good, taking care of others, expressing feelings and vulnerability in a sympathetic way, and making people laugh are all examples of being creative and artistic for the purpose of being creative. The personal touch is important in most occupations and, in certain cases, it completes the task entirely.
- Machines can perform as well as or better than humans in some tasks, despite their slower rate of development.
To learn more about Machine Learning (ML) refert to:
brainly.com/question/25523571
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my explanation is above my comment :)
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