Question 201Steam Plants - 1st Asst/Chief70% to pass
In an automatically fired boiler, the steam pressure regulator controls the supply of fuel oil to the burners by responding to variations in the _______________.
AI Explanation
You are correct, the answer is A) steam header pressure.
In an automatically fired boiler, the steam pressure regulator controls the supply of fuel oil to the burners by responding to variations in the steam header pressure. The steam pressure regulator monitors the steam header pressure and adjusts the fuel oil supply to the burners accordingly, in order to maintain a stable steam pressure.
The other options are incorrect because: B) steam drum water level is monitored by a different control system, C) burner flame intensity is not directly monitored by the steam pressure regulator, and D) the master fuel oil solenoid valve position is controlled by the steam pressure regulator, not the other way around.
Related Questions
#199 When the rate of heat transfer through tube walls is so reduced that the metal becomes overheated, which of the following conditions will result in the boiler? #200 Which of the following represents a significant system limitation to be aware of when a burner management system is operated in the 'HAND' mode? #202 Fine adjustments to a boiler combustion control system, to bring about near perfect combustion, should be made by manually adjusting the _______________.#203 As found in a basic pneumatic automatic combustion control system, the function of a standardizing relay is to _______________.#204 In automatic combustion control systems, increasing or decreasing a loading pressure by a set amount is called _______________.