Question 697Steam Plants - Assistant Engineer
70% to passWhich of the following construction methods would apply to the Babbitt lined, split- type, reduction gear bearings?
AThey are secured in their housing so pressure points will occur at the joint faces.
BThey are split into four equal sized segments.
CThey are always mounted with the split in a horizontal plane.
DThey are rigidly mounted and dowelled in their housings.
AI Explanation
The correct answer is D) They are rigidly mounted and dowelled in their housings. Babbitt-lined, split-type reduction gear bearings are designed to be rigidly mounted and dowelled in their housings. This provides a secure and stable mounting that prevents pressure points from occurring at the joint faces, which would be the case if they were simply secured in the housing (option A). The split design allows for easier installation and maintenance, but the bearings are not split into four equal segments (option B) or necessarily mounted with the split in a horizontal plane (option C).
Related Questions
Q540:A Kingsbury, or pivot shoe type thrust bearing, can bear much greater loads per ... Q256:When the steam pressure drops below a set value on an automatically fired auxili... Q553:Why is superheated steam used in the main propulsion turbines instead of saturat... Q569:A back pressure trip on a ship's service turbo-generator functions to trip the t... Q656:When fitting new carbon ring packing on a turbine rotor shaft, carefully filing ...
Ready to test your knowledge?
Take a Steam Plants - Assistant Engineer Practice ExamOfficial Resources