Chemical Engineering Basics Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are Molybdenun, tungsten & chromium Cobalt, zirconium & molybdenum Cobalt, chromium & tungsten Cobalt, chromium & nickel Molybdenun, tungsten & chromium Cobalt, zirconium & molybdenum Cobalt, chromium & tungsten Cobalt, chromium & nickel ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The process of removal of scale formed during hot rolling of steel is termed as Shot blasting Descaling Skimming Pickling Shot blasting Descaling Skimming Pickling ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Powder metallurgy is used to produce Components of such alloys whose constituents do not form alloys readily Porosity free components Components of large size High precision components with complex cavities and sharp features Components of such alloys whose constituents do not form alloys readily Porosity free components Components of large size High precision components with complex cavities and sharp features ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following : Mixture of water and air Blast of air Jet of water at high pressure Rain of molten lead Mixture of water and air Blast of air Jet of water at high pressure Rain of molten lead ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void. Equal to Less than Greater than Either A, B or C; depends on the size of atom Equal to Less than Greater than Either A, B or C; depends on the size of atom ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Compression ratio of an I.C. engine is the ratio of the Volume of air in cylinder before compression to that after compression Pressure after compression to that before compression Clearance volume to the volume swept by piston per stroke None of these Volume of air in cylinder before compression to that after compression Pressure after compression to that before compression Clearance volume to the volume swept by piston per stroke None of these ANSWER DOWNLOAD EXAMIANS APP
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