Chemical Engineering Basics Which of the following is not a characteristic observed in material failure by fatigue fracture ? 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 Initiation of crack from below the surface does not occur ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The stress at which a metal fails by fatigue lies In the plastic range In the elastic range Near the fracture point of the stress-strain curve None of these In the plastic range In the elastic range Near the fracture point of the stress-strain curve None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Alloys having more than 80% copper are generally more Prone to season cracking Machinable Abrasion resistant Corrosion resistant Prone to season cracking Machinable Abrasion resistant Corrosion resistant ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Copper is not present as an alloying constituent in Delta metal Silicon bronze Nichrome Constantan Delta metal Silicon bronze Nichrome Constantan ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In extrusion of metals, which of the following statement is true ? Relative motion between the billet surface and the container wall is always present Hollow ram is used for indirect extrusion Redundant work is a function of the die angle Speed of the extruded material is same as that of ram speed Relative motion between the billet surface and the container wall is always present Hollow ram is used for indirect extrusion Redundant work is a function of the die angle Speed of the extruded material is same as that of ram speed ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Speed of a submarine in deep sea & that of an aeroplane is measured by a/an Stroboscope Hot wire anemometer Pitot tube Rotameter Stroboscope Hot wire anemometer Pitot tube Rotameter ANSWER DOWNLOAD EXAMIANS APP
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