With regard to the mechanical properties of castings which o
     With regard to the mechanical properties of castings, which one of the following statements is false?  The mechanical properties of castings can improve with more rapid cooling due to decreased micro-alloy segregation  The mechanical properties of castings can degrade with more rapid cooling due to increase gas porosity  The mechanical properties of castings can improve with more rapid cooling due to small grain size formation  The mechanical properties of castings can degrade with more rapid cooling due to more likelihood of entrapment of inclusions  None of the above 
  
  Solution
Option d is false

