Chemical Engineering Basics Protection of ship hulls against sea water corrosion is done by coating with zinc because of the fact that zinc compared to iron is Lighter Oxidised preferentially Reduced preferentially Cheaper Lighter Oxidised preferentially Reduced preferentially Cheaper ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Surface tension is due to the __________ forces. Viscous Adhesive Cohesive Difference between adhesive & cohesive Viscous Adhesive Cohesive Difference between adhesive & cohesive ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is an example of stress corrosion ? Caustic embrittlement of steel Season cracking of brass Both (a) & (b) Neither (a) nor (b) Caustic embrittlement of steel Season cracking of brass Both (a) & (b) Neither (a) nor (b) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Limestone addition in the blast furnace is done to flux __________ present in the raw materials. MnO₂ Al2O₃ P SiO₂ MnO₂ Al2O₃ P SiO₂ 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 : 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 Mixture of water and air ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is not a characteristic observed in material failure by fatigue fracture ? Plastic deformation of material does not occur Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Initiation of crack from below the surface does not occur Initation of crack occurs on the surface of the machine part Plastic deformation of material does not occur Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Initiation of crack from below the surface does not occur Initation of crack occurs on the surface of the machine part ANSWER DOWNLOAD EXAMIANS APP
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