Which of the following gaseous fuels has the highest net calorific value (kcal/Nm3) ?

Related Mcqs:

1. For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3), while the C.V. is same on weight basis (i.e., kcal/kg) ?

   A. Propane and acetylene
   B. Propane and LPG
   C. Sewage gas and gobar gas
   D. B.F. gas and coke oven gas

2. C.V. (kcal/Nm3) of gaseous fuels _____________ with increase in molecular weight?

   A. Decreases
   B. Increases
   C. Remain constant
   D. May increase or decrease, depends on combustibles

3. Which of the following has the highest calorific value (kcal/Nm3) ?

   A. Carburetted water gas
   B. Gobar gas
   C. Natural gas
   D. LPG

4. Which of the following gaseous fuels is likely to have the highest gross calorific value ?

   A. Sewage gas
   B. LPG
   C. Producer gas
   D. Natural gas

5. Which of the following fuels has the highest calorific value per unit mass (kcal/kg) ?

   A. Coal
   B. Kerosene
   C. Natural gas
   D. Furnace oil

6. Which of the following has the least calorific value (kcal/Nm3) ?

   A. Blast furnace gas
   B. Coke oven gas
   C. Sewage gas
   D. Natural gas

7. Which of the following gaseous fuels has the lowest calorific value ?

   A. Gobar gas
   B. Refinery gas
   C. Converter gas
   D. Blast furnace gas

8. The calorific value of ‘LPG’ (50% propane + 50% butane) is about ______________ kcal/Nm3?

   A. 5000
   B. 25,000
   C. 10,000
   D. 15,000

9. The calorific value of producer gas is around _____________ kcal/Nm3?

   A. 1300
   B. 500
   C. 4500
   D. 9000

10. Calorific value of wood gas is about ______________ kcal/Nm3?

    A. 1500
    B. 3300
    C. 5400
    D. 8500