(a) A spherical casting of diameter 10 cm has a cylindrical riser 5 cm in diameter and 10 cm high. Predict with suitable explanation whether the riser can prevent macroporosity in the casting based on calculation applied to the riser design. (Word limit: ~80)

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A spherical casting of diameter 10 cm has a cylindrical riser 5 cm in diameter
and 10 cm high. Predict with suitable explanation whether the riser can prevent
macroporosity in the casting based on calculation applied to the riser design.
Q2.
(а)
(Word limit: ~80)
A manufacturer would like to produce carbonated beverage plastic bottle which
(b)
requires good precision and mechanical properties. Identify with supported
explanation in terms of process characteristics which polymer processing
method is suitable for this application.
(Word limit: ~120)
In solid state sintering of compacted metal powder material, discuss how the
(c)
progress of microstructure changes in sintering can be observed by microscopy.
Support your discussion with suitable schematic diagram.
(Word limit: ~100)
Transcribed Image Text:A spherical casting of diameter 10 cm has a cylindrical riser 5 cm in diameter and 10 cm high. Predict with suitable explanation whether the riser can prevent macroporosity in the casting based on calculation applied to the riser design. Q2. (а) (Word limit: ~80) A manufacturer would like to produce carbonated beverage plastic bottle which (b) requires good precision and mechanical properties. Identify with supported explanation in terms of process characteristics which polymer processing method is suitable for this application. (Word limit: ~120) In solid state sintering of compacted metal powder material, discuss how the (c) progress of microstructure changes in sintering can be observed by microscopy. Support your discussion with suitable schematic diagram. (Word limit: ~100)
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