Home

What is the correct answer?

4

The main charge in blast furnace is usually

A. Iron ore & coke

B. Iron ore, coke & air

C. Limestone, coke & iron ore

D. Limestone, sand & iron ore

Correct Answer :

C. Limestone, coke & iron ore


Related Questions

Air-petrol ratio in an automotive petrol engine is around The property of material, by which a given amount of energy is absorbed… Corrosion of metals cannot be prevented by its With decrease in the grain size of a material, its creep resistance In a drilling process, the metal is removed by both shearing & extrusion.… To improve the machinability of steel, it is generally subjected to Mild steel has __________ crystal lattice structure. Liquid nitrogen containers can be made from Wave length of X-rays is about 1 angstrom; however it cannot pass through… With increase in steam pressure, its specific volume decreases __________ is not a case hardening process. Pick out the wrong conversion of absolute & kinematic viscosities. The delivery pressure of boiler feed water pump compared to the boiler… The excess air required for the combustion of pulverised coal is of the… Cast iron contains __________ percent carbon. The heat released by cooling one mole of copper from 400 K to room temperature… High speed steel tools retain their hardness upto a temperature of __________… Air-petrol ratio for maximum power generation in spark ignition engine… What is the critical radius of insulation (cms) for a metallic cylinder,… Atomic __________ is a whole number for an element. Which of the following pairs is not correctly matched? Tumbling is the process of improving the __________ of the materials/parts. The escape velocity of a body on earth which is independent of its mass… Electrochemical corrosion can occur, only if __________ is present in… If Reynolds number is greater than 1, then the Hydrogen can be Desalination of water An abrupt and sudden fall in the reading of barometer is an indication… __________ property of steel increases by addition of large amount of… Factor of safety in machine design is defined as the ratio of ultimate…