General Studies · Machining and Machine Tools
निम्नलिखित में से किस एडिटिव (additive) का उपयोग आमतौर पर कर्तन तरल (cutting fluid) के निर्माण में नहीं किया जाता है?
- 1ऑक्टेन बूस्टर्स (Octane boosters)✓
- 2अति दबाव एडिटिव्स (Extreme pressure additives)
- 3जंग अवरोधक (Rust inhibitors)
- 4एन्टी-वियर एडिटिव्स (Anti-wear additives)
सही उत्तर देखें
ऑक्टेन बूस्टर्स (Octane boosters)
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