Chemical Engineering Basics Carbon is present in the form of __________ in grey cast iron. Spheroids Flakes Nodular aggregates of graphite Cementite Spheroids Flakes Nodular aggregates of graphite Cementite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In age-hardenable alloys, maximum ductility is obtained Immediately after solution treatment and subsequent quenching After optimum ageing After overageing In as cast state Immediately after solution treatment and subsequent quenching After optimum ageing After overageing In as cast state 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 30000 J 240000 J 90000 J 60000 J 30000 J 240000 J 90000 J 60000 J ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are Molybdenun, tungsten & chromium Cobalt, zirconium & molybdenum Cobalt, chromium & tungsten Cobalt, chromium & nickel Molybdenun, tungsten & chromium Cobalt, zirconium & molybdenum Cobalt, chromium & tungsten Cobalt, chromium & nickel ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics __________ of air does not increase with increase in temperature. Thermal conductivity Density Thermal diffusivity Viscosity Thermal conductivity Density Thermal diffusivity Viscosity 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% ? Cutlery, screws, rivets and files Small punches, broaches reamers and springs Mandrels, twist drills, small lathe tools and razors Forgings like can shaft, structural steel plate, threading dies and drawing dies Cutlery, screws, rivets and files Small punches, broaches reamers and springs Mandrels, twist drills, small lathe tools and razors Forgings like can shaft, structural steel plate, threading dies and drawing dies ANSWER DOWNLOAD EXAMIANS APP
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