Basicity [%Cao + %MgO + %SiO2) of the slag in Indian blast furnace is in the range of___________________?

Related Mcqs:

1. On mixing 56 gm of CaO with 63 gm of HNO3, the amount of Ca(NO3)2 formed is ______________ gm?

   A. 82
   B. 164
   C. 41
   D. 8.2

2. The main reducing agent in iron blast furnace is____________________?

   A. Carbon dioxide
   B. Carbon monoxide
   C. Oxygen
   D. Air

3. Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly _____________ substances?

   A. Radioactive
   B. Organic
   C. Inorganic
   D. None of these

4. Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about ____________ decibels?

   A. 3
   B. 30
   C. 7
   D. 70

5. Kopp’s rule is used to calculate the heat capacity of___________________?

   A. Solids
   B. Liquids
   C. Gases
   D. All (A), B. & (C)

6. The enthalpy change when ammonia gas is dissolved in water is called the heat of___________________?

   A. Solution
   B. Formation
   C. Dilution
   D. Combustion

7. Entropy change of the reaction, H2O (liquid) → H2O (gas), is termed as the enthalpy of___________________?

   A. Solution
   B. Vaporisation
   C. Formation
   D. Sublimation

8. Mollier diagram is a plot of___________________?

   A. Temperature vs. enthalpy
   B. Temperature vs. enthalpy
   C. Entropy vs. enthalpy
   D. Temperature vs. internal energy

9. The most convenient way of expressing solution concentration is in terms of___________________?

   A. Mole fraction
   B. Normality
   C. Molality
   D. Molarity

10. “The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements.” This is the statement of___________________?

    A. Law of Petit and Dulong
    B. Kopp’s rule
    C. Nernst heat theorem
    D. Trouton’s rule