Foundry Metallurgy - Study Mode

[#61] Casting alloys with a large freezing range tend to result in P. shrinkage cavity Q. distributed shrinkage porosity R. liquid metal with poorer fluidity S. liquid metal with superior fluidity
Correct Answer

(C) P, S

[#62] Mould coating material which helps in grain refinement of metal casting is
Correct Answer

(A) cobalt aluminide

[#63] Mould oscillation is used in continuous casting of steels to
Correct Answer

(D) avoid rhomboidity of the casting