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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? 
In cold chamber die casting, rapid cooling of the castings is done as compared to the hot chamber die casting.
The chances of defects in the castings by cold chamber die casting are more than the castings produced by hot chamber die casting.
A stainless steel chamber contains Ar gas at a temperature T and pressure P. The total number of Ar atoms in the chamber is n. Now Ar gas in the chamber is replaced by CO2 gas and the total number of CO2 molecules in the chamber is n/2 at the same temperature T. The pressure in the chamber now is P’. Which one of the following relations holds true? (Both the gases behave as ideal gases)
Which of the following statements are true regarding cold and hot deserts: (a) Hot deserts have high temperature while cold deserts have low temperature. (b) hot deserts are battered by sun and are sandy. Cold deserts have ice and snow covered ground. (c) Hot deserts are red or orange while cold deserts are gray. (d) Hot and cold deserts experience a significant seasonal effect.
Using of the ladle in the cold chamber die casting has no affects on contact time between the molten metal and the shot chamber.
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
In a hot chamber die casting machine
Which of the following engineering materials is the most suitable candidate for hot chamber die casting?
Assertion (A): Aluminium alloys are cast in a hot chamber die casting machine. Reason (R): Aluminium alloys require high melting when compared to zinc alloys.