HCBBS Forum (English)
HomeForumView Original
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request
English Translations » 历史存档[信息] » [Practice Question 2016.11.27] Participating earns 3–9 wealt

[Practice Question 2016.11.27] Participating earns 3–9 wealth rewards

2016-11-27View Original

Thread Content

This post was last edited by percy on 2016-11-27 08:33. Multiple-choice question: 1. There is a normally closed single-seat valve that fails to close properly while in operation; which of the following is NOT a cause of this problem? (　**: B　). A. Severe wear of the valve stem and seat. B. The output of the valve positioner is always at its maximum value. C. There are foreign objects stuck between the valve stem and seat. D. The valve stem is too short. Reminder: After hiding the **, please do not rate the response – thank you!
Reply #22016-11-27
B. The valve positioner output is always at its maximum value

Related Threads in This Forum

← Previous

Next →

Translated at 2026-07-20 22:53:14

Original: https://bbs.hcbbs.com/thread-1646046-1-1.html

© 2026 HCBBS Forum. Content translated for international readers.

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.

Quick Links