Which of the following is not a gas defect?
(a) Blow holes
(b) Run out
(c) Pinhole porosity
(d) Air inclusions
This question was addressed to me in an online interview.
I'm obligated to ask this question of Classification of Defects & Factors Affecting Salvage of Castings in chapter Salvage of Defective Castings of Casting-Forming-Welding I