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 Initiation of crack from below the surface does not occur Plastic deformation of material 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 Initiation of crack from below the surface does not occur Plastic deformation of material does not occur ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In a casting, cold shut defect is caused by Melt-mould reactions Faulty gating system Low pounhg temperature Very low mould permeability Melt-mould reactions Faulty gating system Low pounhg temperature Very low mould permeability ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics A jig is used while __________ a hole. Counter boring Enlarging Boring Drilling Counter boring Enlarging Boring Drilling ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Air refrigeration cycle is used in the air crafts, because of Its low unit weight per ton of refrigeration Its higher co-efficient of performance (COP) Its high heat transfer rate Low temperature encountered at high altitude Its low unit weight per ton of refrigeration Its higher co-efficient of performance (COP) Its high heat transfer rate Low temperature encountered at high altitude ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Swaging is a/an __________ operation. Drawing Forging Extrusion Piercing Drawing Forging Extrusion Piercing ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Silicon crystal can be converted to p-type semi-conductor by doping with Carbon Boron Phosphorous Nitrogen Carbon Boron Phosphorous Nitrogen ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS