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IMUCET EXAM PATTERN & TIPS

Following are a few things to remember during IMUCET Preparation- 1. IMU CET Paper Pattern The paper pattern of IMUCET changes every year, unlike other competitive exams. One cannot be certain

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BSc Nautical Science vs DNS

DNS v/s BSc Nautical Science

When it comes to Diploma in Nautical Science (DNS) and BSc Nautical Science, many aspirants have doubts regarding which course to join and which one is the best. In this blog,

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Free Surface Effect in Ship

Introduction The free surface effect, also known as the free surface phenomenon, refers to the tendency of liquids to move in response to changes in the altitude of the ship, rolling,

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What is Fresh Water Allowance?

Overview  When a ship moves from saltwater to freshwater, it feels heavier and sinks deeper into the water, increasing its draft (how much of the ship is underwater). When the ship

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How to Apply CDC?

If you are a soon-to-be Seafarer looking to join your first vessel, you will surely need a CDC or a continuous discharge certificate. Without a CDC, you are not what the

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Speed Log & Doppler Log

Introduction  Speed log is the bridge equipment used to find out the speed of the ship and the distance traveled through the water. This instrument is used to find the dead

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Permit to Work System

1. What is the Work Permit System? Permit-to-work system is a formalized process used by companies to manage and control high-risk activities to ensure that there is no harm to the

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Analog vs Digital Signal Sifference

ANALOG VS DIGITAL SIGNAL DIFFERENCE In modern industrial and marine engineering systems, signals are the foundation of communication between sensors, controllers, monitoring equipment, and automation systems. Whether measuring temperature, pressure, tank

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Bilge Alarm Systems on Ships

Bilge Alarm Systems on Ships Bilge alarm systems are essential safety and environmental protection devices installed on modern ships. They continuously monitor water accumulation in the lowest areas of a vessel,

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Scavenge Fire

Scavenge Fire in Marine Diesel Engine: Causes, Indications, Prevention and Actions What is Scavenge Fire? A Scavenge Fire is a dangerous condition in a marine diesel engine where accumulated lubricating oil,

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Crankcase Explosion

Crankcase Explosion: Causes, Process, Indications, Safeties and SOLAS Requirements A temperature transmitter is an important instrument used in industrial and marine systems to measure temperature and convert it into a standardized

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Alfa laval Oil Purifier

ALCAP: Alfa Laval Clarifier and Purifier System If you’ve worked with fuel oil treatment systems onboard, you’ve probably heard engineers talking about gravity discs, interface positions, and water carryover problems in

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Main Air Compressor Unloader

Main Air Compressor Unloader The unloader is a solenoid-operated, spring-loaded valve arrangement fitted at the end of the drain lines coming from the intercooler and aftercooler. Purpose of Unloader Restriction of

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 Main Air Compressors Safeties 

 Main Air Compressors Safeties  In the engine room of any merchant vessel, the marine air compressor is a critical piece of machinery. Generating pressures typically up to 30 bar for main

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MAN B&W Main Engine

MAN B&W Main Engine The MAN B&W main engine is one of the most widely used marine propulsion engines in the global shipping industry. Renowned for its reliability, fuel efficiency, and

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Automatic Backwash Filter

Automatic Backwash Filter Working Principle An automatic backwash filter is a self-cleaning filtration system used in marine and industrial applications to remove dirt, rust, sludge, and other solid impurities from liquids

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Temperature Transmitter Working Principle

Temperature Transmitter Working Principle A temperature transmitter is an important instrument used in industrial and marine systems to measure temperature and convert it into a standardized electrical signal. This signal is

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Pressure Switch Working Principle

Pressure Switch Working Principle A pressure switch is an important device used in machinery systems used onboard ship to monitor and control pressure automatically. It is designed to activate or deactivate

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Proximity Sensor Working Principle

Proximity Sensor Working Principle Onboard Ships Modern ships rely heavily on automation and intelligent monitoring systems to ensure safe navigation, efficient machinery operation, and reduced human error. One of the most

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Connecting Rod Bolt Replacement

Connecting Rod Bolt Replacement Connecting rod bolts are among the most critical fasteners in a marine diesel engine. These bolts secure the connecting rod cap to the crankshaft journal and are

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Boiler Water Testing Procedures

Boiler Water Testing Procedures in Marine Boilers Boiler water testing is one of the most important routine operations carried out onboard ships. Proper boiler water treatment and testing ensure efficient steam

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