1. Presence of which material in aluminium alloy provides ductility to the alloy?
Correct Answer is : Copper
2. Which furnace is not used for heating aluminium alloys?
Correct Answer is : Electric arc furnace
3. Which of the following is not a purpose of fluxing and flushing the aluminium alloys?
Correct Answer is : Removal of dissolved oxygen
4. What is the silicon composition present in an LM-17 cast aluminium alloy?
Correct Answer is : 0.115
5. Which gas is not used for fluxing and flushing in aluminium alloys?
Correct Answer is : Oxygen