Exam Question

(a) Describe how propeller shaft/stern bearing clearance is measured. (4)

(b) Identify with reasons the major factors which substantially determine the range of permissible clearance. (4)

(c) State with reasons what parts of propeller shafts should receive particularly close inspection upon withdrawal of such shafts for survey. (4)

(d) State why some propeller shafts require less frequent inspection than others. (4)