List the main advantages of the casting process.
[3 marks]State the reasons why casting is chosen over welding processes.
[4 marks]Describe any three allowances given on pattern with sketch.
[7 marks]State the essential ingredients of a molding sand.
[3 marks]Sketch the cupola furnace showing all the parts of it.
[4 marks]Sketch different types of cores used in foundry practice.
[7 marks]Discuss the reasons why a sprue should be tapered.
[3 marks]Analyze the reasons, “why natural sand is often not suitable for molding purposes”.
[4 marks]Draw a sketch of gating system and mention functions of each part.
[7 marks]State the principle of induction furnace.
[3 marks]Write a short note on top and bottom gates.
[4 marks]Report the causes and remedies of the following defects : Blow holes, Hot tears and Mis-runs.
[7 marks]List some of the advantages and disadvantages of permanent mould casting.
[3 marks]Explain the principle of shell molding process in brief.
[4 marks]Outline the precision investment casting process with typical applications of the process.
[7 marks]State the difference between centrifugal and true centrifugal casting.
[3 marks]Describe the principle of Slush casting in brief.
[4 marks]Differentiate between the principles of gravity die casting and pressure die casting with required explanation.
[7 marks]List the various patterns that are usually used in foundry.
[3 marks]Describe the advance material handling facilities in a modern foundry company.
[4 marks]Differentiate between NDT and DT used for casting defects.
[7 marks]Write down the principle of electric arc furnace.
[3 marks]Explain the importance of automation in foundry.
[4 marks]Produce a list of casting internal defects with its cause and remedy.
[7 marks]