Question 175Steam Plants - Assistant Engineer70% to pass
If a pressure drop does not exist across the superheater in a steaming boiler _______________.
AI Explanation
The correct answer is D) there is no steam flow through the superheater.
If there is no pressure drop across the superheater, it indicates that there is no steam flow through the superheater. Without steam flow, the superheater would not be able to superheat the steam, and there would be no pressure drop. This is the normal condition when the boiler is not generating enough steam to require superheating.
The other options are incorrect because:
A) The feed water temperature would not affect the pressure drop across the superheater.
B) The lack of pressure drop is not a normal condition when the boiler is generating steam.
C) The drum safety valve lifting has no direct relation to the pressure drop across the superheater.
Related Questions
#173 Under otherwise normal steaming conditions, an abnormally high temperature at the superheater outlet of a single furnace boiler would indicate _______________.#174 Which of the listed conditions can cause high superheater outlet steam temperature in an automated boiler? #176 A heavy accumulation of soot on the fireside of the superheater can cause a _______________.#177 Coast Guard Regulations #178 The MAWP of a boiler is 900 psi and the normal drop across the superheater is 20 psi. If the superheater safety valve is set to lift at 825 psi, the minimum settings of the drum safety valves allowed by Coast Guard Regulations would be _______________.