Maritime Knowledge Base
Browse questions and answers across marine machinery, merchant navy careers, shipboard operations and maritime glossary terms.
Browse by Category
Marine Machinery
Troubleshooting guides for pumps, boilers, purifiers, compressors and auxiliary systems.
Merchant Navy Careers
Questions about joining the merchant navy, exams, cadetships, ranks and sea-time.
Maritime Glossary
Plain-English definitions of shipping, engine-room, navigation and regulatory terms.
Shipboard Operations
Practical Q&A for watchkeeping, safety, maintenance routines and onboard documentation.
Results for "Watchkeeping"
What does STCW mean?
STCW explained — the international convention that sets minimum training, certification and watchkeeping standards for seafarers worldwide.
Shipboard OperationsWhat should be checked during engine-room watchkeeping rounds?
How to make an engine-room round count — comparing live readings against normal ranges and catching trends before they become failures.
Merchant Navy CareersShould I choose the deck or engine department?
How the deck and engine career paths differ — daily work, skills, ranks and progression — so you can pick the one that fits you.
Merchant Navy CareersIs the merchant navy a good career choice?
The merchant navy offers high pay, tax advantages, world travel and structured progression, balanced against long periods away from home — here is an honest assessment.
Shipboard OperationsWhat is the man overboard (MOB) procedure on a ship?
When someone falls overboard, immediate, drilled actions — raising the alarm, marking the position and turning the ship back — give the best chance of recovery.
Merchant Navy CareersWhat are the disadvantages and challenges of a merchant navy career?
A merchant navy career has real downsides — long separation from family, isolation, demanding work and health pressures — that anyone considering it should understand.
Merchant Navy CareersHow do you become a ship captain (Master) in the merchant navy?
Becoming a ship's captain means progressing through the deck department from cadet to Master, building sea time and passing successive Certificates of Competency.
Merchant Navy CareersHow do you become a marine engineer on ships?
Becoming a marine engineer means entering the engine department through a cadetship or engineering degree and progressing by sea time and Certificates of Competency.
Merchant Navy CareersHow do you become a chief engineer on a ship?
The chief engineer heads the engine department — reaching the rank requires management-level certification and years of sea time as a watchkeeping and second engineer.
Merchant Navy CareersWhat medical and eyesight standards are required to join the merchant navy?
Seafarers must pass a seafarer medical examination covering general fitness, eyesight and colour vision, and hearing — the standards protect safety at sea.
Merchant Navy CareersHow do you join the merchant navy in the United Kingdom?
In the UK, most people enter the merchant navy through a sponsored officer cadetship that alternates college study with sea phases, leading to MCA certification.
Merchant Navy CareersWhat are the Marine Engineer Officer (MEO) Class examinations?
The MEO Class examinations are the engineer certificates of competency used in India and some other countries, progressing from Class 4 up to the Class 1 chief engineer's certificate.
Shipboard OperationsHow is a navigation (bridge) watch properly handed over?
A bridge watch handover requires the relieving officer to be fully oriented — position, traffic, course and dangers — before accepting the watch, and never mid-manoeuvre.
Merchant Navy CareersWhat are the ranks and hierarchy in the merchant navy?
A merchant ship's crew is organised into the deck, engine and catering departments, each with a clear hierarchy of officers and ratings under the overall command of the Master.
Merchant Navy CareersHow long does it take to become a ship captain in the merchant navy?
Becoming a Master typically takes somewhere around eight to twelve years from cadet, depending on the individual, the flag and how quickly sea time and certificate examinations are completed.
Merchant Navy CareersCan women join the merchant navy and what roles can they hold?
Yes — women can and do serve in every department and rank of the merchant navy, from cadet to Master and chief engineer, and the industry is actively working to recruit more.
Merchant Navy CareersWhat is sea time and why is it required for certificates of competency?
Sea time is the period of approved service at sea a seafarer must complete to qualify for each certificate of competency — proof of real experience, recorded and verified.
Shipboard OperationsHow does marine radar and ARPA work?
Marine radar detects other ships and land by transmitting radio pulses and timing their echoes; ARPA automatically tracks targets and calculates the risk of collision.
Shipboard OperationsWhat is the difference between magnetic variation and deviation?
Variation is the angle between true and magnetic north caused by the Earth's field; deviation is the compass error caused by the ship's own magnetism. Together they make up compass error.
Merchant Navy CareersWhat is a training record book (TRB) for a cadet?
A training record book is the structured logbook in which a cadet records the practical training tasks completed aboard ship, signed off by officers, as evidence for certification.
Shipboard OperationsWhat is dead reckoning in navigation?
Dead reckoning is estimating a ship's present position from a known past position by applying the course steered and the distance run, without reference to external fixes.
Marine MachineryHow does a ship's refrigeration plant work?
A marine refrigeration plant uses the vapour-compression cycle to move heat out of provision rooms or cargo spaces, keeping food and cargo cold at sea.
Shipboard OperationsWhat is a gyrocompass and how does it differ from a magnetic compass?
A gyrocompass is a navigation instrument that uses a fast-spinning gyroscope to find and hold true north, unaffected by the ship's magnetism, providing a true heading to the ship's systems.
Merchant Navy CareersWhat is the difference between the merchant navy and the (military) navy?
The merchant navy is the commercial fleet that carries cargo and passengers for trade, crewed by civilian seafarers, while the navy is a country's military maritime force.
Marine MachineryHow does a ship's steering gear work?
The steering gear is the powered hydraulic machinery that turns the rudder in response to helm orders from the bridge, using rams or rotary vanes driven by pumps.
Merchant Navy CareersWhat is a dynamic positioning operator and how do you become one?
A dynamic positioning operator controls the system that automatically keeps an offshore vessel precisely on station, a specialised and well-paid skill built on a deck-officer background.
Merchant Navy CareersWhat qualifications and requirements are needed to join the merchant navy?
Joining the merchant navy generally requires a good secondary education with science and maths for officer routes, medical and eyesight fitness, meeting age limits, and completing STCW training.
Marine MachineryWhat is a thrust bearing or thrust block and what does it do?
The thrust bearing, or thrust block, absorbs the forward or astern thrust developed by the propeller and transmits it to the ship's hull, so the thrust actually drives the ship.
Shipboard OperationsWhat is bridge resource management (BRM) and why does it matter?
Bridge resource management is the effective use of all the people, equipment and information available on the bridge to navigate safely, reduce human error and prevent accidents.
