Oil used for core sand is
A) molasses
B) linseed oil
C) mineral oil
D) any of the above
Correct Answer:
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Q13: All of the following operations on castings
Q14: Wax patterns are used in
A)non-ferrous castings
B)investment casting
Q15: In copper alloy foundry which of the
Q16: While selecting wood for patterns, one should
A)discard
Q17: A spoke shave is a
A)planing tool
B)sawing tool
C)boring
Q19: The percentage of sulphur in pig iron
Q20: Solidification time for riser should be
A)less than
Q21: Which of the following is very powerful
Q22: Sweep patterns are used to prepare mould
Q23: For aluminium alloys grain refinement can be
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