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 Materials used for making permanent magnets containing iron and nickel are made by __________ technique. Forging Powder metallurgy None of these Casting Forging Powder metallurgy None of these Casting ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is an example of cathodic protection of metals against corrosion ? Painted steel Case hardened steel Galvanised iron Lead lined reactor Painted steel Case hardened steel Galvanised iron Lead lined reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics There are one octahedral void and __________ tetrahedral void in the closest packing of atoms. Two None of these One Three Two None of these One Three ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Presence of small quantity of sulphur in low carbon steel improves its Weldability Machinability Hardenarality Formability Weldability Machinability Hardenarality Formability ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Pick out the wrong statement. If the net positive suction head (NPSH) requirement of a pump is not satisfied, then Its efficiency will not be affected It will be cavitated It will deliver low discharge of liquid It will not develop sufficient head to raise water Its efficiency will not be affected It will be cavitated It will deliver low discharge of liquid It will not develop sufficient head to raise water ANSWER DOWNLOAD EXAMIANS APP
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