Module 33 • Stern Tube Seals, Propellers & Shafting E-Learning Recap www.tstengineering.co.uk
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Module 33 - Stern Tube Seals, Propellers & Shafting

A structured TST e-learning recap for stern tube sealing arrangements, lip and face seals, Airguard systems, oil analysis, shaft alignment, thrust blocks, propeller materials and CPP fault diagnosis.

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Start your Stern Tube, Propellers & Shafting recap

This quiz is designed to reinforce Module 33 stern tube, propeller and shafting knowledge, improve recall, and identify the areas that need revision before mock orals or a live MCA oral examination.

Explain an oil-lubricated stern tube sealing arrangement including aft seal, forward seal, liner, header tank, drain/air-space and monitoring tank.
Differentiate lip seals and mechanical face seals, including continuous rubbing contact between rotating face and stationary seat.
Explain spring bellows, chromium liners, rope guards, Airguard/air-space seals and actions for water ingress or oil leakage.
Use stern tube oil analysis as condition-based monitoring: water, sodium/chloride, viscosity, TAN, particle count and wear metals.
Explain propeller materials, FPP, CPP, ducted propellers, Grim wheels, cavitation damage and dry-dock inspection points.
Describe shaft alignment checks, jack-load testing, thrust block tilting pads and hydrodynamic oil-wedge formation.
About this module

This module forms part of the TST Engineering Services E-Learning Recap Area. It supports structured MCA Engineering Oral Examination preparation by reinforcing stern tube sealing arrangements, propeller and CPP systems, shaft alignment, thrust block operation, oil analysis and practical fault response.

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