PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo1. Anthracite is known as the highest grade coal. Give reason.
Anthracite is known as the highest grade coal. It has a . Anthracite coal is hard, deep black and shiny. It has a carbon content of . It has a somewhat higher heating value than bituminous coal. It burns longer with more heat and less dust.
2. Distinguish between octane number and cetane number.
Octane number:
The amount of in petrol is indicated by the .
Cetane number:
The amount of in petrol is indicated by the .
Cetane number:
The ignition delay of the fuel in a diesel engine is measured by the . The ignition delay is lowered when the is greater.
Register for free to see more content