Chemical Engineering Basics Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of portland cement. The component of Portland cement which first hardens is 3CaO . Al2O₃ 5CaO . 3 Al2O₃ 2CaO . SiO₂ 3CaO . SiO₂ 3CaO . Al2O₃ 5CaO . 3 Al2O₃ 2CaO . SiO₂ 3CaO . SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics First empirical temperature scale conceived is the __________ temperature scale. Reaumer Celcius Absolute Farenhite Reaumer Celcius Absolute Farenhite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following heat treatment processes is usually applied to castings ? Carburising Tempering Normalising Annealing Carburising Tempering Normalising Annealing ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The most detrimental impurity in high pressure boiler feed water is Dissolved salt Turbidity Suspended salt Silica Dissolved salt Turbidity Suspended salt Silica ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity. 50 None of these 100 50 None of these 100 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C. 2000 1800 2400 3000 2000 1800 2400 3000 ANSWER DOWNLOAD EXAMIANS APP
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