Foundry Metallurgy - Study Mode
[#36] At the mould exit of a continuous caster, the metal consisting of a solidified shell with a liquid metal core exits at the rate of 35 kg S -1 . Given that the latent heat of fusion is 3 × 10 5 J kg -1 and the total rate of heat removal by the mould is 4.2 × 10 6 W, the mass fraction of solid at the mould exit is . . . . . . . . Assume that both while solid and liquid remain at the melting point, they are in the mould.
Correct Answer
(B) 0.4
[#37] . . . . . . . . is the tendency of the matter to change its shape, area and volume in response to a change in temperature
Correct Answer
(B) coefficient of expansion
[#38] What are the tests done for molding sand?
Correct Answer
(D) All of these
[#39] Riser are not required for casting
Correct Answer
(C) grey cast iron
[#40] What are the parameters that amount of taper depends?
Correct Answer
(D) All of these