Question 465Steam Plants - Assistant Engineer70% to pass
The pressure in the feed water system must exceed boiler steam drum pressure in order to _______________.
AI Explanation
The correct answer is A) force the feed water into the boiler.
The pressure in the feed water system must exceed the boiler steam drum pressure in order to force the feed water into the boiler. This ensures that the feed water can overcome the steam pressure in the boiler and enter the steam drum, where it will be heated and converted to steam.
The other answer choices are incorrect because:
B) is incorrect as the feed water pressure does not need to exceed boiler pressure to remove steam from the steam drum.
C) is incorrect as preventing water hammer is not the primary reason for the feed water pressure requirement.
D) is incorrect as preventing air leakage is not the main purpose of the feed water pressure exceeding boiler pressure.
Related Questions
#463 To prevent pulsations from developing in the boiler feed water lines, the discharge side of a reciprocating feed pump is equipped with a/an _______________.#464 During initial starting of the standby turbine-driven boiler feed pump, which of the listed valves should remain closed? #466 Which of the following statements is correct regarding the start-up operation of a non-condensing turbine-driven feed pump? #467 Recirculation of the feed water ensures a flow of water through the _______________.#468 If it is necessary to operate a turbine driven main feed pump at shut off head, or at less than 20% of its rated capacity, what will prevent the pump from overheating?