PART A Q1. A floating body is said to be in a state of stable equilibrium a) When its metacentric height is zero b) When the metacentre is above the centre of gravity c) When the metacentre is below the centre of gravity d) Only when its centre of gravity is below its centre of buoyancy Q2. What is the general emergency alarm signal to be sounded by the ship's whistle and alarm bells in case of an emergency situation? a) Seven short blasts followed by one prolonged blast b) B) Series of short blasts c) Continous sounding by whistle and alarm bells d) Series of long blasts Q3 Centre of buoyancy always a) Coincides with the centre of gravity b) Coincides with the centroid of the volume of fluid displaced c) Remains above the centre of gravity d) Remains below the centre of gravity Q4 What shall you do if you see a person falling into the sea? a) Put on a lifejacket. b) Throw a lifebuoy over board and report to the bridge immediately. c) Run aft. d) Launch a lifeboat. Q5 How many rocket parachute flares are carried in each lifeboat? a) 6 b) Nil c) 12 d) 4 Doc. No.: EXM/F/03 Page No.:1/1 Date:12/04/06 Issue No.: 1 Last Update:15/05/15 Revision No.: 2 Author: EC Approved:PROVOST Q6 Marpol garbage disposal regulations outside Special Areas specify that, within 3 miles from the nearest land and in all inland waters a) You cannot throw plastics overboard. b) You cannot throw paper, crockery, rags, glass metal or food overboard unless ground to less than 25 mm. c) You cannot throw plastics, dunnage, lining and packing materials that float overboard. d) You cannot throw anything overboard. Q7. If the weight of a body immersed in a fluid exceeds the buoyant force,then the body will a) Rise until its weight equals the buoyant force b) Tend to move downward and it may finally sink c) Float d) None of the above Q8 In which area is plastic material accepted for overboard disposal? a) Not permissible any where. b) In specially designated areas (ref. MARPOL). c) 100 n.m. from shore line. d) In coastal waters. Q9 The breaking down or destruction of a material, especially a metal, through chemical reactions. a) Collection b) Rust c) Corrosion d) Fouling Q10 All the following are typical type of corrosion except: a) General Attack Corrosion b) Galvanic Corrosion c) Flow Assisted Corrosion d) High-Pressure Corrosion