EXHAUST VALVE

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Before mark v engine i.e. before 1991 man engines had throttle valves which works to dampen the exhaust valve closing also the thermal expansion of oil is taken care of this valve. Throttle valve is...

EXHAUST GAS CLEANING SYSTEM (EGCS) REQUIREMENTS

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1. REGULATORY REQUIREMENTS 1.1. From 1 January 2020, the limit for Sulphur in fuel oil used on board ships operating outside designated emission control areas (ECA) will be reduced from 3.5% to 0.50% m/m (mass...

INTACT STABILITY CODE

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IMO has developed intact stability standards for various types of ships, leading to the completion of the Code on the Intact Stability for All Types of Ships Covered by IMO Instruments intact stability(IS Code)...

Open Loop Scrubbers

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OPEN LOOP SCRUBBERS •In open loop mode seawater is used as wash water. Exhaust gas SO2 reduction is based on natural alkalinity of the seawater. •Natural chemical compounds in seawater will react with SO2 that...

DRY DOCK

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All ships should under go drydock twice in 5 years, and time difference between two continues drydock cannot be more than 36 months.This comprise maintenance of the hull, propeller, rudder and other parts which...

TECHNICAL QUESTIONS & ANSWERS PART-14

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Q. Referring to the latest IMO “ Code on Noise Level onboard Ships”, define and explain the following terms:- A). A- weighted equivalent sound level B). C-weighted equivalent sound level C). Sound pressure levels D). Weighted sound reduction...

CLASS-4 SAFETY ORAL QUESTIONS PART-2

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Q. Bar keel Q. Freeboard Q. Tpc Q. Fresh water to sea water draught will change ? Why? Q. Ism Q. Objective Q. Process for reporting accident Q. SMS Q. E/r what all fire fighting equipment are present? Q. Hypermist working and regulations...

TECHNICAL QUESTIONS & ANSWERS PART-13

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Q. Why is dry-docking referred to as a major event in the maintenance of a ship? As a chief engineer describe different steps that need consideration while planning a dry docking project of a...

CLASS-4 SAFETY ORAL QUESTIONS PART-1

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Q. Rescue boat. Q. Life boat Q. SCABA checks Q. EEBD checks Q. Davit maintenance Q. LSA on your ships ? Q. Special construction design of container ship Q. How torsion box prevent torsion and racking Q. Fire detection system. Q.  Annex 1...

TECHNICAL QUESTIONS & ANSWERS PART-12

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Q. Explain latest developments in Marine “Tribology”. Explain the inferences you may draw from a main engine lub oil analysis report with the proposed corrective action in each case. Answer:- Tribology is the science & engineering...

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