Q381
Open question__________ is the major constituent of the Portland cement.
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Q382
Open questionThe product obtained on mixing calcium oxide with water is called
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Q383
Open questionKaoline is a/an
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Q384
Open questionCoke oven gas consists mainly of
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Q385
Open questionCommonly used glass is known as the __________ glass.
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Q386
Open questionKopper-Totzek coal gasifier
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Q387
Open questionConcentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
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Q388
Open questionThe amount of benzene present in pure benzol is about __________ percent.
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Q389
Open questionConcentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.
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Q390
Open questionThe yield of tar from high temperature carbonisation of dry coal is about __________ percent.
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Q391
Open questionAn oil is converted into fat by its
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Q392
Open questionReaction of ethylene glycol and dimethyl terephthalate (DMT) produces
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Q393
Open questionPortland cement consists mainly of
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Q394
Open questionPick out the wrong statement pertaining to the properties of glasses. Glasses generally have
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Q395
Open questionThe compressive strength of cement should not be less than about 110 Kg/cm2 after three days & not less than 170 Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2/gm.
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Q396
Open questionElectrodeposition of metals i.e. electroplating is never done on
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Q397
Open questionViscosity index improver (like polystrene or polyisobutylene) is added to lubricant to
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Q398
Open questionP.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
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Q399
Open questionLindane is
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Q400
Open questionLitharge is
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