Chemical Engineering Basics The best criterion for analysing an economic investment is the Future value method Present value method Salvage value Rate of return criterion Future value method Present value method Salvage value Rate of return criterion ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure. Body centred cubic (bcc) Hexagonal close, packed (hcp) Simple cubic Face centred cubic (fcc) Body centred cubic (bcc) Hexagonal close, packed (hcp) Simple cubic Face centred cubic (fcc) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Scaling occurs in boiler tubes due to the fact that, the solubility of Ca(OH)₂ __________ with increasing temperature. Shows inversion of solubility Decreases Increases None of these Shows inversion of solubility Decreases Increases None of these ANSWER DOWNLOAD EXAMIANS APP
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 Oxidised preferentially Cheaper Reduced preferentially Lighter Oxidised preferentially Cheaper Reduced preferentially Lighter ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating. Cementite Martensite Pearlite Austenite Cementite Martensite Pearlite Austenite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Steel produced from phosphatic iron is __________ in nature. Malleable Tough Brittle Ductile Malleable Tough Brittle Ductile ANSWER DOWNLOAD EXAMIANS APP
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