Category: Winning Answers
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Watchkeeping (Radar)
Q. In the relative motion stabilized radar, what is the effect of current on target course, speed, CPA & TCPA? In a relative motion display, the information regarding the course and speed is not fed. The ownship is stationary point at the centre of PPI. As long as the current affects the ownship and target…
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Certificates & Documents to be carried on board – 5
Q. Is there a separate Convention in respect of pollution due the bunker spill? Which ships are covered? Certificate attesting that insurance or other financial security is in force in accordance with the provisions of the Bunker Convention shall be issued to each ship having a gross tonnage greater than 1,000. The certificate is issued…
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Certificates & Documents to be carried on board – 4
Q. How does a ship prove her insurance cover in respect of the removal of wreck? Certificate attesting that insurance or other financial security is in force in accordance with the provisions of the Convention shall be issued to each ship of 300 gross tonnage and above. This is done by the appropriate authority of…
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Certificates & Documents to be carried on board – 3
Q. What certificates / documents, etc. are required to be carried on board as required by Annex 1 of MARPOL? The certificates/documents required by annex I of MARPOL are: 1. International Oil Pollution Prevention Certificate 2. Oil Record Book 3. Shipboard Oil Pollution Emergency Plan. Q. Which ships are provided with the IOPP certificate? An…
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Certificates & Documents to be carried on board – 2
Q. What certificates are required to be carried under SOLAS chapter III? Ships, as required by Ch III of SOLAS, shall be provided with muster list and emergency instructions, which shall comply with the requirements of relevant regulation and be exhibited in conspicuous places throughout the ship including the navigation bridge, engine-room and crew accommodation…
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Certificates & Documents to be carried on board – 1
Q. Why should the ships carry the required certificates and documents? Ships must carry various certificates and documents on board to: legally operate to ensure the safety of men, ship and the local state; ensure due prevention of pollution; trade freely both nationally and internationally; and remain seaworthy all the times. Q. Can the e-certificates…
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SHIPHANDLING (Maneuvering Characteristics)
Q. What are the various characteristics? Where will you find the relevant criteria? The following criteria may be considered as defining the maneuverability of ship: Inherent dynamic stability Course-keeping ability Initial turning/course-changing ability Yaw checking ability Turning ability Stopping ability The IMO resolution MSC.137(76) “Standards for Ship Maneuverability” identify these characteristics and provide criteria to…
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SHIPHANDLING (Pivot Point, Wind and Transverse Thrust)
Q. Is the transverse thrust blessing or curse? Transverse thrust is aptly used by mariners to their advantage. A few instances being as follows: While anchoring the port anchor, transverse thrust while using astern propulsion opens the stem out and the cable is nicely laid. Alternately giving stern kick with rudder amidships with dead slow…
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SHIPHANDLING (Turn Circle, Shallows)
Q. In your plan to approach a pilot station, why you should not include full astern? The control over ship is lost during astern propulsion. This is because rudder is not usable. The inclusion of full astern in the plan would mean the approach was done at high speed and it was necessary to put…
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SHIPHANDLING (Use of anchor in Special Situations)
Q. What additional precautions will you take in respect of anchoring in an area where range of tide is very large? After the anchor strikes ground, a very gentle pull to shank will cause the flukes to bite the ground. A strong tidal stream would cause undue stress on flukes due a large momentum. The…