CTET PAPER II 2019 · PYQ · Combustion / Fuels · medium
Identify the incorrect statements.
A.The calorific value of Kerosene is more than that of Coal.
B.The calorific value of coal is more than that of Wood.
C.The calorific value of Biogas is more than that of LPG.✓ Correct
D.The calorific value of CNG is more than that of Diesel.
Explanation
The calorific value of LPG (about 55,000 kJ/kg) is much greater than that of Biogas (about 35,000-40,000 kJ/kg), so the statement that biogas has higher calorific value than LPG is incorrect. The other statements are correct based on standard calorific values.
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