Physics · IC Engines
आंतरिक दहन (IC) इंजन के लिए उपयोग किए जाने वाले स्नेहक (lubricant) में निम्नलिखित में से कौन सा गुण होना चाहिए?
- 1गैर-संक्षारक प्रकृति (Non-corrosive nature)
- 2अच्छा श्यानता सूचकांक (Good viscosity index)
- 3उपरोक्त सभी✓
- 4तापीय स्थिरता (Thermal stability)
सही उत्तर देखें
उपरोक्त सभी
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