Question 728Steam Plants - Assistant Engineer70% to pass
Gland sealing steam is used during steam turbine operation to prevent the loss of _______________.
AI Explanation
The correct answer is C) vacuum.
Gland sealing steam is used in steam turbine operation to prevent the loss of vacuum within the turbine casing. The turbine relies on maintaining a high vacuum to maximize efficiency and power output. The gland sealing steam creates a positive pressure seal around the turbine shaft, preventing air from being drawn into the turbine and disrupting the vacuum. This helps maintain the vacuum necessary for proper turbine operation.
The other options are incorrect because they do not relate to the primary purpose of gland sealing steam. Preventing the loss of oil, air, or temperature are not the main functions of the gland sealing system in a steam turbine.
Related Questions
#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 #727 As shown in the illustration, piston "F" in the gland seal regulator is moved upward by _. Illustration SE-0019 #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 _______________.#731 How is an excess of turbine gland seal steam remedied?