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In permanent mould casting, the mould is pre-heated to its operating temperature before the actual use of mould.
In low-pressure die casting, metal enters the mould very slowly as compared to the die casting.
In vacuum die casting, the melt enters into the mould cavity with less speed than that in the die casting technique.
Which of the following considerations distinguish die casting from the permanent mould casting?
Molten metal is poured into the mould due to the effect of gravity with _______ external pressure in gravity die casting.
Consider the following statements. (1) Hot chamber machine is used for casting zinc, tin and other low melting alloys (2) Cold chamber machine is used for die casting of ferrous alloys (3) Rapid cooling rate in die casting produces high strength and quality in many alloys Which of these statements are correct? 
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 × 105 J kg-1 and the total rate of heat removal by the mould is 4.2 × 106 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.
In permanent mould casting, only the metallic type of cores can be used, as the mould material used is also metallic.
In permanent mould casting, the temperature at which the mould is used does not depend on _____
In the following sentence, a part of the sentence is underlined. Below are given alternatives to the underlined part, which may improve the sentence. Choose the correct alternative in case no improvement is needed, choose the alternative that indicates ''No Improvement.'' He that liveth wickedly can die hardly honestly. A. die hard honestly B. hardly die honestly C. die hardly honest