(a) Explain the function and location of EACH of the following (i) Watertight doors (3) (ii) Weathertight doors (3) (b) Explain why a bilge injection valve is incorporated into the main sea water system, describing how it is tested (4)
(a) Explain the function and location of EACH of the following (i) Watertight doors (3) (ii) Weathertight doors (3) (b) Explain why a bilge injection valve is incorporated into the main sea water system, describing how it is tested (4)
UKM Tuticorin 
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