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Attendant Operator Chemical Plant Practice Test: Locking devices
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Attendant Operator Chemical Plant Practice Test: Locking devices
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6 Questions

1. Why slots are provided in the slotted castle nuts?
2. What is the use of spring pins?
3. What is the function of lock in micrometer?
4. Why the spring washers are used under nuts?
5. What is locking device?
6. Which type of nut is used to lock without split pins?

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