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Attendant Operator Chemical Plant Practice Test: Valves
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Attendant Operator Chemical Plant Practice Test: Valves
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18 Questions

1. Which valve is having on-off system?
2. What is the purpose of valve packing?
3. What is the another name of check valve?
4. What type of motion control is involved in butterfly valve?
5. Which valve is used for gas flow?
6. Which is used to control the flow of water?
7. What is the function of a butterfly valve?
8. Which is the cause for continuous spindle slipping and valve does not shut off when turned?
9. Which valve is operated in 90° degree angle?
10. Which is handled by diaphragm valve?
11. Which type of valve is used to prevent the build up of back pressure in a pipe line?
12. Which is the cause for liquid flowing from around the spindle on stuffing box screws?
13. How many direction does non-return valve allow the flow in pipe line?
14. Which valve is known as on-off valve?
15. What is the purpose of valve packing?
16. Which valve allows flow in one direction only?
17. How the gate valve gives pressure drop?
18. Which is handled by diaphragm valve?

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