Question 391Steam Plants - 1st Asst/Chief70% to pass
On a main propulsion turbine bearing, the readings obtained with a bridge gage represent the _______________.
AI Explanation
The correct answer is C) oil clearance and bearing wear.
The readings obtained with a bridge gage on a main propulsion turbine bearing represent the oil clearance and bearing wear. This is because the bridge gage is used to measure the clearance between the rotating shaft and the stationary bearing housing, which indicates the amount of bearing wear over time. The oil clearance is critical for maintaining proper lubrication and preventing excessive friction and heat buildup in the bearing.
The other options are incorrect because they do not accurately represent the information provided by a bridge gage measurement on a main propulsion turbine bearing. Diaphragm tip clearance (A), Babbitt thickness (B), and blade axial clearance (D) are not directly measured by this type of gauge on this specific component.
Related Questions
#389 A cloudy or milky appearing lube oil sample, taken from the main lubricating oil system could be caused by _______________.#390 Precautions to be observed prior to starting a turbine driven cargo pump should include _______________.#392 Main steam turbine bearings are lined with _______________.#393 Journal bearings used with modern turbine rotors are manufactured in two halves in order to _______________.#394 For a large main propulsion turbine, the most commonly used turbine thrust bearing is the _______________.