Mechanical Engineering

1.What does thermal diffusivity of metals signify. Ans: Thermal diffusivity is associated with the speed…

1.Which element is added in steel to increase resistance to corrosion ? Ans: Chromium. 2.Whether…

1.What is the difference between isotropic and anisotropic materials ? Ans: If a material exhibits…

1.Which reactor produces more fissionable material than it consumes ? Ans: Breeder reactor. 2.Which reactor…

1.How the analyses and calorific values of fuels can be reported ? Ans: It may…

1.Which reactor has no moderator ? Ans: Fast breeder reactor. 2.What are thermal neutrons ?…

1.How you can define coal ? Ans: Coal is a naturally occurring hydrocarbon that consists…

1.Why rockets using liquid hydrogen have higher specific impulse compared to liquid hydrocarbon ? Ans:…

1.Why pistons are usually dished at top ? Ans: Pistons are usually hollowed at top…

1.Maximum combustion temperature in gas turbines is of the order of 1100 to 10°C whereas…