Proper ramming is used to eliminate which of the following defects?(a) Swell(b) Run out(c) Pinhole porosity(d) Cuts and washesThe question was posed to me in an interview for job.My question is from Classification of Defects & Factors Affecting Salvage of Castings topic in division Salvage of Defective Castings of Casting-Forming-Welding I

Proper ramming is used to eliminate which of the following defects?(a)

1.	Proper ramming is used to eliminate which of the following defects?(a) Swell(b) Run out(c) Pinhole porosity(d) Cuts and washesThe question was posed to me in an interview for job.My question is from Classification of Defects & Factors Affecting Salvage of Castings topic in division Salvage of Defective Castings of Casting-Forming-Welding I
Answer» Correct CHOICE is (a) Swell The explanation: Heavy metallostatic FORCES cause the mould wall to move back and result in an increment in dimensions if the casting. Good ramming techniques are USED to eliminate this defect.

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