Pick up the correct statement from the following
In basic Bessemer process, the steel heats the converter
In open-hearth process, the furnace heats the steel
In Siemens process, the impurities of pig iron are oxidised by the oxygen of the ore
all the above
Correct answer is D
No explanation has been provided for this answer.
Vanadium steel is generally used for
railway switches and crossing
bearing balls
magnets
axles and springs
Correct answer is D
No explanation has been provided for this answer.
For filling cracks in masonry structures, the type of bitumen used is
cut-back bitumen
bitumen-emulsion
blown bitumen
plastic bitumen
Correct answer is D
No explanation has been provided for this answer.