Which outcome results when fuel injection pressure decreases in a diesel engine?

💡 Explanation

Lower injection pressure reduces fuel atomization and increases unburnt hydrocarbons because it decreases the Reynolds number, creating a less turbulent flow during atomization. Therefore, unburnt hydrocarbons increase rather than decrease, as efficient combustion needs smaller droplet sizes at higher pressures.

• Which outcome occurs when a Rankine cycle steam turbine encounters wet steam?
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