Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

A. 2

B. 3

C. 0.8

D. 6

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  4. Limestone addition in the blast furnace is done to flux __________ present in the raw materials.
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  12. Which of the following is used to produce draught in the locomotive boilers?
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  14. Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.
  15. The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation…
  16. Yield strength of a polycrystalline metal with an average grain size d, is proportional to
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  24. Which of the following terminology is used for the temperature at which new grains are formed in a metal?
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