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Ment 538:Foundry Technology Question Paper

Ment 538:Foundry Technology

Course:Bachelor Of Science In Manufacturing Engineering And Technology

Institution: Egerton University question papers

Exam Year:2016

UNIVERSITY EXAMINATIONS
REGULAR-NJORO
FIRST SEMESTER, 2016/207 ACADEMIC YEAR
FIFTH YEAR EXAMINATION FOR THE BACHELOR OF SCIENCE IN MANUFACTURING ENGINEERING AND TECHNOLOGY
MENT 538: FOUNDRY TECHNOLOGY
STREAM:BSC MENT
EXAMINATION SESSION: DECEMBER
YEAR: 2016

INSTRUCTIONS
i.) Answer ANY FOUR questions
ii.) All questions carry equal marks

Question One
i.) What are the important factors to be considered in casting design? Explain
(10 marks)
ii.) Explain briefly the cast metal properties required as a basis of design of casting. (10 marks)
Question Two
i.) What is the function of gating system? (5 marks)
ii.) What is the function of a riser? Compare open riser and blind riser (5 marks)
iii.) How do you increase the riser efficiency to increase directional solidification (10 marks
Question Three
i.) State the Chvorinov’s rule and the assumption (10 marks)
ii.) Three pieces being cast has the same volume but different shapes. One is a sphere , one a cube and other a cylinder with a height equal to its diameter. Which piece will solidify the fastest and which one the slowest? (10 marks)

Question Four
i.) List the various functions a pattern may ;perform (6 marks)
ii.) Illustrate providing any 3 types of allowances on a pattern (6 marks)
iii.) Explain the role and type of pattern in shell molding and investment casting (8 marks)

Question Five
i.) What is foundry? What is the advantages of casting process over other fabrication processes? (8 marks)
ii.) Explain the following terms; cores, molding and green sand (6 marks)
iii.) Explain the process of floor and pit molding giving the limitations in process
(6 marks)

Ment 538:Foundry Technology Question Paper

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