Chemical Engineering Basics Tempering of a material does not improve its Internal stress level Machinability Softness Toughness Internal stress level Machinability Softness Toughness ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are Cobalt, chromium & nickel Cobalt, chromium & tungsten Cobalt, zirconium & molybdenum Molybdenun, tungsten & chromium Cobalt, chromium & nickel Cobalt, chromium & tungsten Cobalt, zirconium & molybdenum Molybdenun, tungsten & chromium ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is not a characteristic observed in material failure by fatigue fracture ? Initiation of crack from below the surface does not occur Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Plastic deformation of material does not occur Initation of crack occurs on the surface of the machine part Initiation of crack from below the surface does not occur Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Plastic deformation of material does not occur Initation of crack occurs on the surface of the machine part ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Corrosion rate can not be lowered by reducing the __________ of the corroding medium. Velocity None of these Temperature Concentration Velocity None of these Temperature Concentration ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics If the head is doubled in & centrifugal pump, the power required will increase in the ratio of 21/3 25/2 23/2 23 21/3 25/2 23/2 23 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following will resist maxi-mum shock & vibration without cracking? Graphite White cast iron Grey cast iron Malleable iron Graphite White cast iron Grey cast iron Malleable iron ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS