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SEAMANSHIP 6
FINAL EXAMINATION
1 Som. 2024-2025 INSTRUCTIONS: This is your Final Examination for the First Semester AY 2024 2025 Answer to the following questions/problems according to the best of your ability. For Essay Type of questions, explain as much as possible so that it can be understood. For Multiple Choice questions, write or mark the corresponding Letter of your choice, not the statement. Good luck and stay safe always. QUESTIONS: The Intact Stability 2008, 2020 Edition present mandatory and recommendatory stability criteria. When did this edition came into effect? SESE January 1, 2020 In the Intact Stability criteria what is the required minimum GM for passenger and cargo ships? a) 015m +b) 0.20m ©) 0.25 qd) 9.30m AEE. 0.15 In the Intact Stability Criteria, what is the required minimum length of the righting lever and its corresponding angle of heel? a) 0.09m-rad @ 40° b) 0.20m @ 30° or less c) 0.15m @ 30” REREAD. 0.20m @ 30 or less The condition where the ship has suffered a breach of the hull through grounding, etc. and water has been admitted is called__ a) Breaching b) Permeability ¢) Bilging d) Agrounding AGRW2Fc. Bilging As aresult of bilging, there is increase in the drafl, therefore the Center of Buoyancy will move downwards. TRUE or FALSE MENGE ALSE As a result of bilging, the displacement of the ship does not change, the Center of Gravity will not shift vertically. TRUE or FALSE. MRS RvE 7. State at least three (3) parameters that will change due to bilging. a) Hydrostatic draft will incrcase b) Position of COB i.e. KB, LCB and distance of COB from shipside c) Trim and List In drydocking, when the ship is completely borne by the blocks, water is pumped out slowly from the dock. TRUE or FALSE WEAF ALSE The vertical parallel forees acting on a ship when on drydock are the following, execpt: a) Buoyancy acting upward b) Keel block upthrust acting upward c) ght acting downward d) Center of Buoyancy acling downwards d) Center of Buoyancy acting downwards |. The following are the main factors that affect quat, except: a) Depth of wate: b) Speed of the ship ©) Block coefficient d)_ Blockage factor of canal a) Depth of water . The formula for the Value of Squat in enclosed water is: Value of Squat is equal to block coefficient multiplied by the square of the speed time 2, then divided by 100. The result is measured in meters. If the block coefficient is 70% or 0.70 and the sp: is 13 knots, what is the Value of Squat in enclosed waters? Show your solution. ( points) Solution: Value of Squats = (Block Coefficient x Speed") x 2 100 = (0.70 x13) x2 100 = (0.70 x 169) x 2 100 =118.3x2 100 MWEEValuc of Squats = 2.366 m or 2.37 m 
