Question 60Gas Turbine - 1st Asst/Chief
70% to passThe main thrust bearing directly positions which part(s) of the main reduction gear?
ABull gear.
BLow-speed pinion.
CHigh-speed pinion.
DHigh-speed gear.
AI Explanation
The correct answer is A) Bull gear. The main thrust bearing directly positions the bull gear, which is the large, low-speed gear in the main reduction gear assembly. The thrust bearing absorbs the axial loads and forces generated by the rotating gears and shafts, and it ensures the proper positioning and alignment of the bull gear within the reduction gear system. The other answer choices are incorrect because the low-speed pinion, high-speed pinion, and high-speed gear are not directly positioned by the main thrust bearing. These other components are positioned and supported by other bearings and components within the reduction gear assembly.
Related Questions
Q102:In the marine gas turbine engine shown in the illustration, the HP turbine 2nd s... Q55:The build-up of contamination in a gas turbine will cause all of the following c... Q80:When performing a static check to determine tooth contact, you should use which ... Q91:You are preparing for a borescope inspection of a GE LM2500 gas turbine engine. ... Q67:Which of the following conditions will NOT be the result of a build-up of deposi...
Ready to test your knowledge?
Take a Gas Turbine - 1st Asst/Chief Practice ExamOfficial Resources