2022 – Chief mate MMD

Chief Mate MMD

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December 31, 2025

Jan 2022 Nav Arc 1

Q.1 A vessel floating at drafts forward 8.0 m aft 9.0 m, grounds at a point 25 m aft of forward perpendicular. Calculate the drafts and virtual GM of the ship when the tide has fallen by 75 cm. Given MCTC 300 tm, TPC 30 t, KG 7.5 m, KM 8.5 m, Length 165 m, LCF 80 m, forward of

2022 0 16 sec read

December 31, 2025

May 2022 Nav Arc 1

Q.2 A vessel of L = 140 mt, W = 16000t, MCTC = 190, TPC = 24t, LCF = 72m, KM = 8.20m, KG = 7.20m, FSM = 1370mt, draft = Fwd = 6.68m, Aft = 8.84m grounds on an isolated rock, the draft then are fwd 5.88 and aft 9.28m. Calculate following:i) The up thrust provided by the rock.ii)

2022 0 20 sec read

December 30, 2025

July 2022 Nav Arc 1

Q.2 A ship of L = 150m drawing 5.0m forward and 7.0m aft. Her W = 13,000 t, TPC = 23, LCF = 73.50 m runs aground at a point 20m aft of forward perpendicular. After grounding the drafts are found to be 4.6m forward and 7.0 aft. Find:(a) Rise in tide required for the vessel to refloat. (b) Upthrust

2022 0 18 sec read

December 28, 2025

Sep 2022 Nav Arc 1

Q.2 A vessel of L = 150 m arrives dry-dock drawing 5.0 m forwards and 7.0 m aft. Her W = 12019 t, KG = 7.0 m, FSM = 800 tm, TPC = 22.47, MCTC = 174, LCB = 72.962 m, LCF = 72.476 m, KM = 8.438 m. If the declivity of the dock 20 cm per 100m, find

2022 0 18 sec read

December 27, 2025

March 2022 Nav Arc 1

Q.2 A ship of L = 130 m, W = 5200 t, CF = 2m aft of midship MCTC = 140mt, KM = 6.5, K.G. = 6.0m, TPC = 20t, draft Fwd = 4.35m, Aft = 5.41m dry docked. Calculate her residual GM and the drafts F & A.i) When the trim reduced to 35 cms.ii) When the water level

2022 0 18 sec read

December 26, 2025

June 2022 Nav Arc 1

Q.2 A ship of L = 200 m, W = 50000 T, MCTC = 250 T-m, KM 10 m, KG 5 m, TPC = 50 T, LCF 105 m, draft F 10.0 m, A 11.0 m, grounds lightly on an isolated rock in falling tide. At low water, the drafts are found to be F 9.5 m, A 11.0 m,

2022 0 36 sec read