Question 187Steam Plants - 1st Asst/Chief70% to pass
While your vessel is steaming with one boiler, the automatic combustion control system sensing line for the idle boiler is accidentally opened. How will this affect the steaming boiler?
AI Explanation
The correct answer is D) The steam pressure will rise.
When the sensing line for the idle boiler is accidentally opened, it causes the automatic combustion control system to detect a drop in steam pressure from the idle boiler. In response, the system will increase the fuel supply to the active boiler, causing its steam pressure to rise. This is to compensate for the loss of steam pressure from the idle boiler, maintaining the overall steam pressure in the system.
The other options are incorrect because the water level in the active boiler will not be affected, and the steam pressure will increase, not decrease, due to the automatic adjustments made by the combustion control system.
Related Questions
#185 While trying to light off a burner on a semi-automated boiler, you note that the fuel oil solenoid valve at the burner will not stay open. Which of the following conditions could cause this problem? #186 In a boiler automation system, if a burner fuel oil solenoid valve continually trips closed under normal steaming conditions, you should _______________.#188 Modern day boiler automation allows bypassing the "flame safeguard" system to permit a burner to have a "trial for ignition" period during burner light-off. This period may not exceed _______________.#189 The temperature of the fuel oil received during bunkering operations is critical in determining the _______________.#190 Which of the pumps listed takes fuel oil suction from the double bottom tanks and discharges it to the settling tanks?