Which of the following process is used for melting of steel?
A) L D process
B) Kaldo process
C) Duplex process
D) All of the above
Correct Answer:
Verified
Q7: Flux used in cupola while melting cast
Q8: Which heat treatment is applicable to aluminium
Q9: Die casting is generally not used for
A)cast
Q10: The principal ingredients of moulding sands are
A)silica
Q11: The function of ejection pin in die
Q13: Slag and dross can be removed by
A)skimming
Q14: Sand acquires a predetermined shape under pressure
Q15: Refractoriness in the moulding sand is due
Q16: Heat treatment of castings is usually done
Q17: Average amount of sand required in a
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