Stoichiometry

191. Kopp's rule is concerned with the calculation of

1. Thermal conductivity
2. Heat capacity
3. Viscosity
4. Surface tension

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192. Kopp's rule is helpful in finding the

1. Heat capacities of solids
2. Heat capacities of gases
3. Molal heat capacities of gases
4. Activation energy

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193. Kopp's rule is useful for the determination of

1. Molal heat capacities of gases
2. Heat capacities of solids
3. Activation energy
4. Heat capacities of gases

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194. Lower wall courses of soaking pits are made of _________ bricks to avoid the action of molten slag & scale.

1. Chrome or magnesite
2. Silicon carbide
3. Silica
4. Low duty fireclay

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195. Magnesite refractories are generally not used in the

1. Electric furnace walls
2. Steel melting furnace
3. Open hearth furnace
4. Burning zone of cement kilns

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196. Magnesite refractories are used for the construction of those furnaces, which are

1. Not required to resist the corrosive action of basic slag
2. Not subjected to fluctuation in temperature
3. Used for raising & maintaining high temperature
4. Both (B) and (C)

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197. Mass number of an atom is the sum of the numbers of

1. Neutrons and protons
2. Protons and electrons
3. Neutrons and electrons
4. Both (A) & (B)

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198. Maximum alumina content in high alumina refractory can be as high as _________ percent.

1. 30
2. 50
3. 70
4. 90

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199. Measurement of the amount of dry gas collected over water from volume of moist gas is based on the

1. Charle's law
2. Dalton's law of partial pressures
3. Avogadro's hypothesis
4. Boyle's law

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200. Methane is mixed with stoichiometric proportion of oxygen and completely combusted. The number of additional specifications required to determine the product flow rate and composition is

1. 0
2. 1
3. 2
4. 3

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