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Chemical Engineering · all questions

Chemical Engineering Basics
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Electrochemical corrosion can occur, only if __________ is present in contact with metal.

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A spring material should have low

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Which of the following metals can not be extracted by pyrometallurgical process from its sulphide ore?

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Alloy powder manufactured by the following process have spherical shapes.

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Fire refining process is employed in case of

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Hot extrusion process is not used for making

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Addition of beryllium to copper is done mainly to produce a/an __________ alloy.

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In __________ process, ions of salts react with water to produce acidity or alkalinity.

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Impeller & casing of centrifugal pump handling corrosive liquid and frequently running under cavitation condition is most prone to __________ corrosion.

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The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?

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The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.

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Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of

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Steam condenser tubes are made of ad-mirability brass, in which percentage of zinc & copper are __________ respectively.

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In order to protect the aquatic creatures, the dissolved oxygen content in fresh water stream should never be less than __________ PPm.

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CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because of the fact that the

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Batch process is preferred over continuous process, when the

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Transformer cores are normally made from

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The co-ordination number in simple cubic structure is

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L.D. (Linz-Donawitz) converter is used in the production of

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The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

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