Practice question
मानक सुरक्षा रंग-कोडिंग के अनुसार, श्वसन प्रणाली (respiratory system) के सिलेंडर पर मौजूद सफेद पट्टी (बैंड) किस गैस को इंगित करती है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1CNG
- 2O2✓
- 3CO2
- 4N2
सही उत्तर देखें
O2
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