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 Initation of crack occurs on the surface of the machine part Plastic deformation of material does not occur 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 Initation of crack occurs on the surface of the machine part Plastic deformation of material does not occur ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following phenomenon/ phenomena is/are diffusion controlled ? Dislocation climb Twinning Recrystallisation Cross-slip Dislocation climb Twinning Recrystallisation Cross-slip ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system Consumer minimum horse power Is as light as possible Employs minimum quantity of refrigerant Has very high C.O.P Consumer minimum horse power Is as light as possible Employs minimum quantity of refrigerant Has very high C.O.P ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics 1% concentration of water vapor in air is equivalent to __________ ppm (parts per million). 100 10 1000 10000 100 10 1000 10000 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is an example of cathodic protection of metals against corrosion ? Case hardened steel Painted steel Galvanised iron Lead lined reactor Case hardened steel Painted steel Galvanised iron Lead lined reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Materials having resistivity ranging from 1 to 100 ohm. cm is termed as Insulator Conductor None of these Semi-conductor Insulator Conductor None of these Semi-conductor ANSWER DOWNLOAD EXAMIANS APP
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