Q2. An automobile has 3.2 liter, four-cylinder, and four-stroke cycle engine operating at 2400 rpm. The spark plug is fired at 20° bTDC and takes 10° of engine rotation to start combustion. Flame termination occurs at 15° aTDC. The exhaust valve opens at 50° 6BDC. Calculate the time of: 1. Ignition delay? 2. Flame propagation? 3. Exhaust blowdown?

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Classification of types of corrosion

Corrosion is described as the process in which a certain element is degraded or deteriorated due to the presence of multiple chemicals in the surrounding. Generally, corrosion happens if all the subatomic particles on a metallic object are oxidized, for example, rust on iron structures. In air or water, metals lose electrons to other particles (like oxygen), leading to the formation of an oxide with the metal.