Multiple Choice
In copper alloy foundry which of the following is used to prevent the molten metal from being oxidized?
A) phophorous
B) bone ash
C) calcium carbonate
D) charcoal
Correct Answer:
Verified
Correct Answer:
Verified
Q1: The melting unit is an integral part
Q2: The disadvantage of hot blast cupola is<br>A)low
Q3: Oil used for core sand is<br>A)molasses<br>B)linseed oil<br>C)mineral
Q4: Wax patterns are used in<br>A)non-ferrous castings<br>B)investment casting
Q6: A spoke shave is a<br>A)planing tool<br>B)sawing tool<br>C)boring
Q7: Which of the following statement about core
Q8: Swab is used for<br>A)applying water to the
Q9: Solidification time for riser should be<br>A)less than
Q10: All of the following operations on castings
Q11: The burnt on sand causes difficulty in<br>A)machining