A.Graphite
B.Silica flour
C.Iron free zirconium
D.all of the above
Related Mcqs:
- Refractoriness in the moulding sand is due to the presence of
- The main constituent of moulding sand is
- Which of the following sand must possess high refractoriness?
- The facting sand used in foundry generally consists of
- Discoloration should be avoided while handing
- Which of the following has the lowest weight/volume ratio?
- While machining cast iron generally cutting fluid is not required because
- Which of the following is a fuel used in fast reactors?
- White cst iron contains
- Head storage capacity of moulding sand can be increased by adding?
