Hamad Chemical Engineering Basics 25/07/2020 A. Zirconia B. Alumina C. Bakelite D. Tungsten carbide Related Mcqs: The most detrimental impurity in high pressure boiler feed water is ___________________?A. Suspended salt B. Dissolved salt C. Silica D. Turbidity... ‘Cryogenics’ is concerned with the generation & use of low temperature in the range of____________________?A. 0°K to 123°K B. 0°C to – 123°C C. 0°C to – 273°C D. 0°K to 273°K... Limestone is added in the blast furnace (during pig iron manufacture) to______________________?A. Form slag by combining with impurities B. Supply heat by undergoing exothermic reaction with impurities C. Reduce the coke consumption D. Reduce slag viscosity... High speed steel tools retain their hardness upto a temperature of __________________ °C?A. 500 B. 750 C. 900 D. 1100... Which of the following is not a principal alloying element for the structural steel ?A. Molybdenum B. Nickel C. Manganese D. Chromium...
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