Subject Code: 2152506
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-V (NEW) EXAMINATION - SUMMER 2019Subject Name: Foundry Technology
Time: 02:30 PM TO 05:00 PM
Date: 06/06/2019
Total Marks: 70
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
Q.1 (a) Write basic steps of casting process. [03]
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(b) Compare casting process with metal joining process. [04](c) Explain the pattern allowance in brief. [07]
Q.2 (a) Discuss about pollution control in foundry. [03]
(b) Write short note on pattern materials. [04]
(c) Explain any seven casting defect with causes and its remedies. [07]
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OR(c) Explain inspection of casting and explain any two non-destructives testing of casting. [07]
Q.3 (a) Draw any six patterns. [03]
(b) Discuss any four required properties of molding sand. [04]
(c) Explain directional solidification with neat sketch. [07]
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OR(c) Define following terms:- permeability, Green compressive strength, mould hardness. [07]
Q.4 (a) Write basic steps of Permanent Mold Casting Technique. [03]
(b) Explain hand moulding tools with sketch. [04]
(c) Draw schematic diagram of induction furnace. [07]
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Q.5 (a) Write a short note on cupola furnace. [03]
(b) Write a brief about riser location and design. [04]
(c) Draw schematic diagram of electric arc furnace. [07]
OR
(c) Explain the principle of electric arc furnace. [07]
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Q.S (a) Explain Gating System with its elements with neat sketch. [03]
(b) Write basic steps involved in the sand casting process. [04]
(c) Discuss slush casting. [07]
OR
(c) Write a short note on Annealing and Normalizing heat treatment process. [07]
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Q.S (a) Write basic steps involved in the investment casting process. [03]
(b) Explain the gravity die casting. [04]
(c) Write a short note on Hardening and Tempering heat treatment process. [07]
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