JNTU III B.Tech Supplimentary Examinations, Aug/Sep 2008

JNTU III B.Tech Supplimentary Examinations, Aug/Sep 2008 FOUNDRY AND WELDING (Production Engineering) SET-IV 1. Explain with neat sketches different types of patterns.   2. Explain the following casting defects (a) Sand fusion (b) Slag inclusions (c) Blow holes (d) Cold shuts.   3. (a) Explain various types of risers with their advantages and limitations. (b) … Read more JNTU III B.Tech Supplimentary Examinations, Aug/Sep 2008

JNTU III B.Tech Supplimentary Examinations, Aug/Sep 2008

JNTU III B.Tech Supplimentary Examinations, Aug/Sep 2008 FOUNDRY AND WELDING (Production Engineering) SET-III 1. (a) Explain the various steps involved in making a casting. (b) Explain why is that a Pattern is made in two or more pieces. Explain with typical examples.   2. (a) Is it, Possible to obtain a sound casting of a … Read more JNTU III B.Tech Supplimentary Examinations, Aug/Sep 2008

JNTU question papers III B.Tech – Foundry and welding – Aug/Sep 2008

JNTU III B.Tech Supplimentary Examinations, Aug/Sep 2008 Foundry and welding (Production Engineering) SET-II 1. (a) Explain why ramming obtained in sand slingers are more uniform over the depth than that in sand squeezers or Jolting machine? (b) Define the term pattern. Explain how patterns differ from the drawing of the castings.   2. (a) Sketch … Read more JNTU question papers III B.Tech – Foundry and welding – Aug/Sep 2008