Chemical Engineering Basics Materials used for making permanent magnets containing iron and nickel are made by __________ technique. None of these Powder metallurgy Casting Forging None of these Powder metallurgy Casting Forging ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Cold cracking in the heat affected zone of a high strength steel weld can take place because of the Relatively high sulphur content in the base metal Retained austenite Martensite formation Sufficient hydrogen present in the welding arc Relatively high sulphur content in the base metal Retained austenite Martensite formation Sufficient hydrogen present in the welding arc ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics For the irreversible reaction, Ca+ 2C = Ca C₂ , Δ H°298 = - 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be 240000 J 60000 J 90000 J 30000 J 240000 J 60000 J 90000 J 30000 J ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following metals is the most prone to work hardening? Lead Copper Aluminium Brass Lead Copper Aluminium Brass 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 Cutlery, screws, rivets and files Mandrels, twist drills, small lathe tools and razors Forgings like can shaft, structural steel plate, threading dies and drawing dies Small punches, broaches reamers and springs Cutlery, screws, rivets and files Mandrels, twist drills, small lathe tools and razors Forgings like can shaft, structural steel plate, threading dies and drawing dies 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 0.084027777777778 0.043055555555556 0.044444444444444 0.042361111111111 0.084027777777778 0.043055555555556 ANSWER DOWNLOAD EXAMIANS APP
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