Computer · Fluid Machinery
सेल्फ-प्राइमिंग पंप (Self-priming pumps) निम्नलिखित में से किसकी आवश्यकता को समाप्त कर देते हैं?
- 1संक्षारण सुरक्षा उपकरण (corrosion protection device)
- 2वियर रिंग (wear ring)
- 3कैविटेशन रोकथाम उपकरण (cavitation prevention device)
- 4बाहरी प्राइमिंग सहायक उपकरण (external priming auxiliary device)✓
सही उत्तर देखें
बाहरी प्राइमिंग सहायक उपकरण (external priming auxiliary device)
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