Organic sulphur present in coal is found out by
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Metallurgical Engineering · all questionsMetallurgical Analysis
Metallurgical Analysis
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Dean and stark apparatus is used in the determination of . . . . . . . . content in liquid fuels.
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Pick out the wrong statement.
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A sampling tube known as a thief, which has two concentric and close fitting tubes with matching holes or opening, is used for the sampling of
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Loss on ignition (LOI) of iron ore is determined by finiding the loss in weight of the sample by heating it first to 500°C for 5 minutes followed by its heating at . . . . . . . . °C, for 30 minutes.
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Determination of methane present in coke oven gas by orsat apparatus, it is completely oxidised in contact with CuO to CO2 and H2O at a temperature of, . . . . . . . . . °C.
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Determination of alumina (AI2O3) in iron ore is based on the selective formation of AIPO4 from its acidic solution (with cone, HCl) by the addition of
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Determination of ash content of coal during its proximate analysis, the temperature of weighed coal sample is raised to 400 - 500°C in half an hour and maintained at the same level for further half an hour. The temperature is then raised to . . . . . . . . °C at which the sample is heated for one more hour before weighing it.
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Eschka mixture used in total sulphur determination in coal comprises of a mixture of . . . . . . . . in 2 : 1 ratio by weight.
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Coning and quartering is a well known process of the sampling of
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During Orsat analysis of coke oven gas, the unsaturated hydrocarbons (represented by C2.5H5) is absorbed by the
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Eschka process is used for determining the . . . . . . . . sulphur of coal.
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Estimation of total iron in oxide ore comprises of three basic steps namely (i) extraction of iron into solution (ii) oxidation for volumetric analysis or precipitation for gravimetric analysis, and (iii) titration in volumetric analysis or ignition and weighting in gravimetric analysis. Which of the following concentrated acid is used for the first step i.e. extraction of iron into solution?
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Bomb calorimeter is used for determining the . . . . . . . . sulphur of coal.
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Potassium hydroxide sulution used as an absorbent in orsat apparatus is capable of absorbing
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In the bomb calorimeter used for the determination of calorific value of coal,
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Which of the following sulphur compounds present in coal that can not be reduced by washing of coal, is not determined directly?
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Combined carbon content in iron and steel is determined by treating the sample with dilute HNO3. So that combined carbon forms a soluble brown nitrated compound, the intensity of which is matched with that of a standard sample of similar composition treated under similar condition. The intensity of color produced is proportional to the carbon content of iron of steel sample. This method of combined carbon determination is called the
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