Chemical Engineering Basics Maraging steels derive their strength from the following mechanism: Fine dispersions of Fe₃ C nucleated on dislocations in austenite Fine dispersions of intermetallics of Fe, Ni, Ti etc A fine, highly dislocated and strong martensite Fine dispersions of alloy carbides in a ferrite matrix Fine dispersions of Fe₃ C nucleated on dislocations in austenite Fine dispersions of intermetallics of Fe, Ni, Ti etc A fine, highly dislocated and strong martensite Fine dispersions of alloy carbides in a ferrite matrix ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Lime contains about 90% CaO. Percentage CaO present in limestone is about 50 80 25 70 50 80 25 70 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The most detrimental impurity in high pressure boiler feed water is Silica Dissolved salt Turbidity Suspended salt Silica Dissolved salt Turbidity Suspended salt ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following are made out of the carbon steel having carbon content of 0.9 to 1% ? Small punches, broaches reamers and springs Mandrels, twist drills, small lathe tools and razors Cutlery, screws, rivets and files Forgings like can shaft, structural steel plate, threading dies and drawing dies Small punches, broaches reamers and springs Mandrels, twist drills, small lathe tools and razors Cutlery, screws, rivets and files Forgings like can shaft, structural steel plate, threading dies and drawing dies ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics __________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength. Lancing Shot peening Slugging Spinning Lancing Shot peening Slugging Spinning ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of 0.044444444444444 0.042361111111111 0.043055555555556 0.084027777777778 0.044444444444444 0.042361111111111 0.043055555555556 0.084027777777778 ANSWER DOWNLOAD EXAMIANS APP
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