The defect blow hole in castings is caused due to Engineering Materials Mcqs June 15, 2019 BILAL KHATTAK0 A.Hard ramming B.Excessive moisture C.Improper venting D.Excessive carbouacious material E.Any of the above Related Mcqs:Blow holes in castings are due toSwell is a defect in castings due toArc blow is a welding defect which is encounteredIn die castingSwelling of castings may occur due toA defect in castings in which a discontinuity is formed due to the imperfect fusion of two streams of metal in the mould cavity is known asAteliosis is caused by the defect of:The injuries are generally caused by:Excess oil consumption in engine may be due toPermeability of moulding sand is increased due to/by
