Question 727Steam Plants - Assistant Engineer70% to pass
As shown in the illustration, piston "F" in the gland seal regulator is moved upward by _. Illustration SE-0019
AI Explanation
The correct answer is A) lube oil pressure.
In a gland seal regulator, piston "F" is moved upward by the lube oil pressure. The lube oil pressure acts on the underside of the piston, pushing it upward and regulating the flow of fluid or gas through the regulator.
The other options are incorrect because:
B) Control air is used to actuate the regulator, but does not directly move the piston.
C) Nitrogen is an inert gas that may be used in the regulator system, but does not directly move the piston.
D) Steam pressure is not involved in the operation of a gland seal regulator.
Related Questions
#725 While making engine room rounds at sea, you observe excessive steam leaking from the forward gland on the high-pressure turbine. This may indicate that the _______________.#726 During maneuvering, a vessel has just reached full ahead from a dead slow condition. Which of the following actions reflects the first operation of the gland seal regulator shown in the illustration? Illustration SE-0004 #728 Gland sealing steam is used during steam turbine operation to prevent the loss of _______________.#729 If the gland assembly shown in the illustration is located at the forward end of the high-pressure turbine and the vessel is operating at full speed ahead_______________. Illustration SE-0006#730 Guardian valves are installed on main propulsion turbines to _______________.