Question 235Steam Plants - 1st Asst/Chief70% to pass
On a steam vessel, if a centrifugal main feed pump were operating at shutoff head with the recirculating line closed, which of the following conditions could occur?
AI Explanation
The correct answer is C) Flashing at the suction side of the pump.
When a centrifugal main feed pump operates at shutoff head with the recirculating line closed, the pressure at the suction side of the pump will drop significantly. This can cause the water to flash into steam, leading to cavitation and potential damage to the pump. The other answer choices are incorrect because they do not directly result from the specific operating conditions described in the question.
Related Questions
#233 Excess free oxygen in the boiler feed water can be the result of _______________.#234 In a closed feed and water cycle, which of the conditions listed could prevent vacuum from reaching the desired level? #236 Which of the conditions listed may be indicated by the lifting of the DC heater relief valve? #237 The second engineer reports to you as the Chief Engineer that there is an increased use of oxygen scavenging chemicals in a boiler. Which of the following could be a possible cause? #238 Excessive water loss from the main feed system can be caused by _______________.