Exam Question

(a) What is Prismatic Co-efficient (CP). Derive the formula CP = Cb/cm where Cb = Coefficient of fineness and Cm = midship section area co-efficient. (6)

(b) The 1/2 ordinates of a waterplane at 15m intervals, commencing from aft, are 1, 7, 10.5, 11, 11, 10.5, 8, 4 and 0m. Calculate:

(a) TPC

(b) Distance of the centre of flotation from midships

(c) Second moment of area of the waterplane about a transverse axis through the centre of flotation.