A.Shrinkage
B.Porosity
C.Mould erosion
D.any of the above
Related Mcqs:
- Which of the following defect may occur due to improper design of gating system?
- The design of gate should be such as to
- High pouring rate leads to
- The defect known as ‘drop’ occurs when the upper surface of the mould cracks and pieces of sand fall into the molten metal. This defect occurs due to
- Swell is a defect in castings due to
- A slick is mainly used for
- Swab is used for
- The purpose of clay in a moulding sand is to
- The term riparian erosion is applied to:
- Bunds, dams and drains are constructed to prevent:
