HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

【Daily Question】Pump Equipment Technical Exchange Edition 20180107

2018-01-07View Original

Thread Content

Participation: Prize 2 Wealth; Correct answer: Reward of 5 wealth points ; Note: A reward of 5 wealth points will be given for correct answers within 48 hours; this post is valid for 48 hours. Multiple-choice question: If the centrifugal pump operates at 2900 r/min and the outer diameter of its impeller is 200 mm, its head can be estimated to be approximately ( ) m. A、32m B、47m C、58m D、80m Correct answer: B. Head H = V squared / 2g. The linear velocity at the outer circumference of the V impeller is V=πD*2900/60=30.35 m/s; g=9.81, and H=30.35*30.35/2/9.81=46.9 m. https://attach01.hcbbs.com/forum/201801/05/235057wnwxbzxb311ikvvz.jpg.thumb.jpg

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.