Question 368Steam Plants - 1st Asst/Chief70% to pass
The jacking gear on main propulsion turbines can be used to _______________.
AI Explanation
The correct answer is A) provide reduction gear tooth inspection.
The jacking gear on main propulsion turbines is used to manually rotate the turbine shaft, allowing for inspection of the reduction gear teeth. This is an important maintenance and safety procedure to ensure the proper functioning of the reduction gears, which transmit power from the turbine to the propeller.
The other answer choices are incorrect. Option B is incorrect because the jacking gear is not used to provide propulsion in emergencies. Option C is incorrect as the jacking gear is not used to reduce turbine speed during maneuvering. Option D is incorrect as the jacking gear is not used to lift the reduction gear casing.
Related Questions
#366 The main propulsion shaft turning gear usually connects to the free end of the high-speed high pressure pinion because the _______________.#367 Which of the devices listed is generally used to engage the main engine turning gear to the high pressure turbine high-speed pinion? #369 Allowance for axial expansion of the steam turbine due to temperature changes is provided for by the use of _______________.#370 An efficient seal is normally obtained between the upper and lower halves of a turbine casing by _______________.#371 Turbine casing flanges are sometimes provided with a system of joint grooving to _______________.