Question 276Steam Plants - Assistant Engineer

The correct answer is C) oil temperature for proper atomization. Using an oil temperature-viscosity chart, you can determine the recommended oil temperature that will provide the proper viscosity for optimum fuel atomization during combustion. The viscosity of the fuel oil is a key factor in achieving complete and efficient combustion, and the oil temperature-viscosity chart allows you to select the appropriate oil temperature to maintain the desired viscosity range. The other answer choices are incorrect because they do not directly relate to the purpose of using an oil temperature-viscosity chart, which is to determine the proper oil temperature for efficient fuel atomization, not oil pressure, fuel/air ratio, or fuel oil flash point.