Calorific value of coal middling generated in coal washeries during washing of coal may be around _____________ Kcal/kg?

Related Mcqs:

1. Calorific value of a typical dry anthracite coal may be around _____________ Kcal/kg?

   A. 1000
   B. 4000
   C. 8000
   D. 15000

2. 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

3. Calorific value of bituminous coal may be around ______________ Kcal/kg?

   A. 500
   B. 1500
   C. 6500
   D. 20000

4. Calorific value of coke even gas produced by low temperature carbonisation of coal is about ____________ Kcal/Nm3?

   A. 4000
   B. 2500
   C. 6500
   D. 10000

5. Calorific value of gobar gas (containing CH4 = 60% , H2 = 10% ; CO2 = 30%) may be about ______________ Kcal/Nm3?

   A. 1,800
   B. 3,200
   C. 5,400
   D. 10,200

6. Calorific value of dry wood may be around ______________ Kcal/kg?

   A. 5
   B. 50
   C. 500
   D. 5000

7. Gross calorific value will be equal to the net calorific value for __________________?

   A. H2
   B. C2H2
   C. CO
   D. C2H6

8. The calorific value of a gas of composition CO2 = 20%, H2 = 50%, CH4 = 30%, is y. If the composition of gas is changed to H2 = 50%, CH4 = 30%, CO2 = 10%, N2 = 10%, then the calorific value will be___________________?

   A. y
   B. 0.95 y
   C. 1.05 y
   D. 1.8 y

9. Bomb calorimeter is used to determine the (where, GCV – Gross Calorific Value. NCV – Net Calorific Value.) ?

   A. GCV at constant pressure
   B. GCV at constant volume
   C. NCV at constant pressure
   D. NCV at constant volume

10. Net calorific value is the gross calorific value less the _______________ heat of water in the product of combustion when cooled to 15°C ?

    A. Sensible
    B. Latent
    C. Sensible and latent
    D. None of these