Chemical Engineering Basics Sub zero treatment of steel is done to Reduce the retained austenite in hardened steel Suppress martensite transformation Induce temper brittleness after its hardening Enhance its working performance in sub zero atmosphere Reduce the retained austenite in hardened steel Suppress martensite transformation Induce temper brittleness after its hardening Enhance its working performance in sub zero atmosphere ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action. Derivative None of these Integral Proportional Derivative None of these Integral Proportional 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 Initation of crack occurs on the surface of the machine part Plastic deformation of material does not occur 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 Initation of crack occurs on the surface of the machine part Plastic deformation of material does not occur Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Oxygen cylinders used for autogenous (cutting/welding) purposes are Heat treated before use Made by sand casting Seamless & made of steel Welded steel cylinders Heat treated before use Made by sand casting Seamless & made of steel Welded steel cylinders ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Ignition of fuel in a diesel engine is by None of these Fuel injection Hot compressed air Spark None of these Fuel injection Hot compressed air Spark ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void. Greater than Less than Either A, B or C; depends on the size of atom Equal to Greater than Less than Either A, B or C; depends on the size of atom Equal to ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS