Multiple Choice
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
A) low mould hardness
B) insufficient reinforcement
C) low green strength
D) any of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q2: The methods of casting for producing ornamental
Q3: In radiography test on castings which of
Q4: Silica is the second most important constituent
Q5: Metal moulds are used in<br>A)dry sand moulding<br>B)green
Q6: Pattern draft for internal surfaces is (in
Q8: Contraction of metal starts at the end
Q9: Local stress relief treatments are generally given
Q10: Which of the following is used on
Q11: Flash occurs on diecastings at the<br>A)gatting system<br>B)ejection
Q12: Investment casting finds application in all of