Q8. (a) With reference to the cargo tanks of oil tankers: State
(i) The purpose of the pressure vacuum valve (5)
(ii) The dangers of venting during loading via open tank hatches (5)
(b) (i) Sketch a high velocity vent (5)
(ii) Describe the operation of this vent and state why such a device is used. (5)
Q2. a) With respect to oil tankers, what are LR1, LR2, VLCC and ULCC? (4)
b) Sketch the mid ship section of a double hulled oil tanker with centre tank and wing tanks (12)
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