Metallurgical Analysis MCQ
Test your knowledge with important Metallurgical Analysis MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Metallurgical Analysis MCQs on Bissoy. Bissoy App
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Combined carbon content in iron and steel is determined by treating the sample with dilute HNO<sub>3</sub>. 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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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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In the bomb calorimeter used for the determination of calorific value of coal,
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Potassium hydroxide sulution used as an absorbent in orsat apparatus is capable of absorbing
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Bomb calorimeter 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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Eschka process is used for determining the . . . . . . . . sulphur of coal.
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During Orsat analysis of coke oven gas, the unsaturated hydrocarbons (represented by C2.<sub>5</sub>H<sub>5</sub>) is absorbed by the
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Coning and quartering is a well known process of the sampling of
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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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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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Determination of alumina (AI<sub>2</sub>O<sub>3</sub>) in iron ore is based on the selective formation of AIPO<sub>4</sub> from its acidic solution (with cone, HCl) by the addition of
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Determination of methane present in coke oven gas by orsat apparatus, it is completely oxidised in contact with CuO to CO<sub>2</sub> and H<sub>2</sub>O at a temperature of, . . . . . . . . . °C.
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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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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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Dean and stark apparatus is used in the determination of . . . . . . . . content in liquid fuels.
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Organic sulphur present in coal is found out by
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Qualitative determination of H<sub>2</sub>S in gases is done by wetting a filter paper with . . . . . . . . and keeping it in the gas stream. The extent of brown or black colouration of the filter paper givesa rough estimate of H<sub>2</sub>S present in the gas.
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Fuel gas and flue gas samples are most conveniently collected in a
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Carrier agent used in gas analysis by chromatagraph for carrying of gas sample in adsorption coloumn is generally
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Strohlein apparatus is used for the deter mination of the . . . . . . . . in ferrous materials e.g., iron or steel.
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Conradson method arid Ramsbottom method is used for the determination of . . . . . . . . of the fuel oil.
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For complete analysis of iron ore, the size of the dried sample should be
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Samples for the analysis of solid metallic scrap & alloys are normally taken by
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For determination of ash in coke
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Fixed carbon of coal during its proximate analysis is determined by
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Calorific value of liquid fuels can be determined by calorimeter.
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Calorific value of fuel gases is not determined by the . . . . . . . . calorimeter,
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Determination of volatile matter in coal, during its proxiinate analysis requires heating of coal sample.
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For moisture determination during proximate analysis of coal, -72 mesh coal (2 - 10 gms) is heated between 105 to 110°C