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Q. Explain basic types of Sand testing?
Moulding sands should be of proper quality to meet the required level of accuracy and surface finish of castings. Proper quality of the moulding sand will result in Sound castings that will decrease the cost and increase the production.
The following tests have been recommended by B.I.S.
• Moisture content test
• Clay content test
• Permeability test
• Fineness test or Sand grain size test
• Strength test
• Mould hardness test.
(Buoyancy of a floating body) Ice has a density 91.7% of liquid water. For an ice cube (1 cm per side), a) what fraction of the volume floats above the water surface at sta
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1.Two machining operations, A (3 minutes per part) and B (10 minutes per part), are performed sequentially to manufacture a part. Machines A and B produce 5% and 6% defective items
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Ask question explin opiz code #Minimum 100 words accepted#
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Q. Define Oxidation Process? Oxidation is defined as a loss of electrons, as when a metal goes from the metallic state to the corroded state. When a metal reacts with oxygen,
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