Chemical Engineering Basics Which of the following is not a characteristic observed in material failure by fatigue fracture ? Initation of crack occurs on the surface of the machine part Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Plastic deformation of material does not occur Initiation of crack from below the surface does not occur Initation of crack occurs on the surface of the machine part Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Plastic deformation of material does not occur Initiation of crack from below the surface does not occur ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Carnot cycle is also termed as the constant __________ cycle in thermodynamics. Pressure Heat Entropy Volume Pressure Heat Entropy Volume ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Corrosion rate can not be lowered by reducing the __________ of the corroding medium. Temperature None of these Velocity Concentration Temperature None of these Velocity Concentration ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is an example of stress corrosion ? Season cracking of brass Neither (a) nor (b) Both (a) & (b) Caustic embrittlement of steel Season cracking of brass Neither (a) nor (b) Both (a) & (b) Caustic embrittlement of steel ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In the Bayer's process, bauxite is digested under pressure using HCl NH₃ H₂SO₄ NaOH HCl NH₃ H₂SO₄ NaOH ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The best criterion for analysing an economic investment is the Salvage value Rate of return criterion Future value method Present value method Salvage value Rate of return criterion Future value method Present value method ANSWER DOWNLOAD EXAMIANS APP
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