HK Engine Operator Grade 3 study materials
HK Engine Operator Grade 3 study resources

HK Engine Operator Grade 3 key terms

HK Engine Operator Grade 3 · Get comfortable with the vocabulary.

Engine room watchkeeping

The duty of monitoring and tending propulsion, steering and auxiliary machinery during an assigned period, including regular rounds, log entries, alarm response and correct handover to the relieving engineer.

Related: Watch handover, Engine room log book, Unattended machinery space
Watch handover

The formal transfer of responsibility between engineers, covering machinery condition, ongoing jobs, abnormal readings, isolation permits and standing orders, so the relieving officer takes over with full awareness.

Related: Engine room watchkeeping, Permit to work
Engine room log book

The official record of machinery parameters, fuel and water transfers, tank soundings, alarms, defects and actions taken; entries are made at prescribed intervals and kept for inspection by authorities.

Related: Engine room watchkeeping, Sounding
Unattended machinery space

A class notation allowing the engine room to run without a continuous watch, relying on alarms, automatic shutdowns, fire detection and a call-out system to alert a duty engineer.

Related: Dead-man alarm, Engine room watchkeeping
Dead-man alarm

A timer-based alarm in the engine room or machinery control room that must be reset periodically by the watchkeeper, proving the person on watch is conscious and active.

Related: Unattended machinery space, Engine room alarm system
Engine room alarm system

The panel and sensors that annunciate high temperature, low pressure, low level, overspeed and similar faults, with an audible alarm and visual indication identifying the affected parameter.

Related: Dead-man alarm, Safety shutdown
Safety shutdown

Automatic stopping or tripping of machinery, such as the main engine or a generator, when a parameter passes a safe limit; the cause must be found and corrected before restart.

Related: Overspeed trip, Engine room alarm system
Overspeed trip

A protective device that stops an engine or turbine if its speed exceeds a set limit, preventing runaway and mechanical failure; it is tested periodically and its setting is not adjusted at sea.

Related: Safety shutdown, Main engine
Main engine

The propulsion machinery driving the propeller shaft, usually a slow-speed two-stroke diesel; its starting, manoeuvring, fuel changeover and stopping are controlled from the bridge or engine control room.

Related: Manoeuvring platform, Air starting system, Overspeed trip
Auxiliary engine

An engine driving an alternator or other service load rather than propulsion, supplying electrical power for pumps, lighting, navigation equipment and accommodation when the ship is at sea or in port.

Related: Main engine, Blackout
Auxiliary boiler

A boiler producing steam for fuel heating, accommodation services and tank cleaning; its water level, burner, safety valves and gauge glasses require routine checks and periodic inspection.

Related: Steam system, Low water level alarm
Air starting system

The arrangement of compressors, air receivers, reducing valves and distributor that supplies compressed air to turn the main engine for starting and manoeuvring; receiver pressure must be maintained above the minimum.

Related: Main engine, Manoeuvring platform
Manoeuvring platform

The control position, usually on the bridge or in the engine control room, from which engine speed, direction and starting air are ordered and executed during arrival, departure and restricted waters.

Related: Main engine, Bridge control
Bridge control

Remote operation of the main engine from the wheelhouse by telegraph or lever, with the engine room on standby; transfer between bridge and local control follows an agreed procedure with confirmation.

Related: Manoeuvring platform, Engine room watchkeeping
Fuel oil changeover

The controlled switch between heavy fuel oil and distillate for main engine operation, managing viscosity and temperature so that injection and pumping remain within the engine maker's limits.

Related: Fuel oil viscosity, Fuel oil purifier
Fuel oil purifier

A centrifugal separator that removes water and solid contaminants from fuel before it reaches the engine; correct bowl speed, temperature, throughput and sludge discharge are essential to protect pumps and injectors.

Related: Fuel oil changeover, Settling tank
Settling tank

A storage tank where fuel is left to stand so that water and heavy sediment settle to the bottom before the fuel is drawn off for purification and service use.

Related: Fuel oil purifier, Sounding
Sounding

Measuring the depth of liquid in a tank with a tape, float or gauge to determine quantity and detect changes; soundings are logged and compared with expected consumption or transfer figures.

Related: Settling tank, Engine room log book
Bilge system

The piping, valves and pumps used to collect and remove water accumulating in the bottom of the engine room and other spaces, discharging through an oily water separator or to a reception facility.

Related: Oily water separator, Bilge alarm
Oily water separator

Equipment that treats engine room bilge water so the oil content of the discharge is within the permitted limit, typically 15 ppm; it must be operated with its alarm and stopping device working.

Related: Bilge system, Oil record book, 15 ppm alarm
15 ppm alarm

The monitor fitted to an oily water separator that detects oil content above the permitted limit and automatically stops discharge overboard, diverting the effluent back to a holding tank.

Related: Oily water separator, Oil record book
Oil record book

A statutory record of oil transfers, bilge discharges, sludge disposal and bunkering operations, signed by the officer in charge and available for inspection by port state control.

Related: Oily water separator, Sludge tank
Sludge tank

A tank receiving waste oil, fuel purifier sludge and contaminated residues, which must be disposed of ashore through a licensed reception facility and recorded in the oil record book.

Related: Oil record book, MARPOL Annex I
MARPOL Annex I

The international convention annex controlling pollution by oil, setting discharge limits, equipment requirements and record-keeping duties for machinery spaces and cargo operations.

Related: Oil record book, Oily water separator
Fire triangle

The three elements needed for combustion: fuel, oxygen and heat. Removing any one of them extinguishes a fire, which is the basis for choosing between cooling, smothering and starvation.

Related: Fixed fire fighting system, Fire extinguisher
Fixed fire fighting system

A permanently installed arrangement such as foam, CO2, water mist or sprinkler protecting the engine room, activated from outside the space after confirming the space is evacuated and sealed.

Related: Fire triangle, Fire drill
Fire drill

A scheduled exercise rehearsing alarm response, muster, boundary cooling, shutdown of machinery and use of extinguishing equipment, recorded in the log and assessed for improvement.

Related: Fixed fire fighting system, Muster station
Muster station

The marked assembly point where crew and passengers report on hearing the general emergency alarm, receive instructions and are accounted for during drills and real emergencies.

Related: Fire drill, Emergency generator
Emergency generator

A standby generating set, usually diesel driven and located outside the main machinery space, that starts automatically on loss of main power to supply steering, lighting and essential services.

Related: Blackout, Muster station
Blackout

Total loss of electrical power causing loss of propulsion, steering and lighting; the duty engineer must restore the emergency supply, restart generators and investigate the cause.

Related: Emergency generator, Auxiliary engine
Permit to work

A written authorisation for hazardous maintenance such as hot work, entry into enclosed spaces or work on live systems, setting out isolations, precautions, supervision and a validity period.

Related: Enclosed space entry, Isolation and lock-out
Enclosed space entry

Entry into a tank, void or other confined space, permitted only after testing for oxygen and toxic or flammable gas, with ventilation, a standby person and rescue arrangements in place.

Related: Permit to work, Gas detector
Gas detector

A portable or fixed instrument measuring oxygen, hydrocarbon vapour, carbon monoxide or hydrogen sulphide, calibrated before use to give reliable readings before and during enclosed space entry.

Related: Enclosed space entry
Isolation and lock-out

The practice of closing and locking valves, switching off and locking breakers, and tagging equipment before maintenance so machinery cannot be started or fluid released unexpectedly.

Related: Permit to work, Safety shutdown
Hong Kong Shipping Ordinance

Local legislation regulating the registration, manning, safety and operation of Hong Kong vessels, including the powers of inspectors and the duties placed on owners and operators.

Related: Local vessel licence, Marine Department
Marine Department

The Hong Kong government department responsible for port administration, vessel registration and licensing, inspection, pollution control and enforcement of local shipping regulations.

Related: Hong Kong Shipping Ordinance, Port state control
Local vessel licence

The certificate issued for a vessel plying Hong Kong waters, defining its permitted class, area of operation, passenger or cargo limits and required manning and safety equipment.

Related: Hong Kong Shipping Ordinance, Certificate of competency
Certificate of competency

The qualification issued to a seafarer who meets the examination, sea service and medical requirements for a grade, authorising them to serve in the corresponding engineering or deck role.

Related: Local vessel licence, Engine room watchkeeping
Port state control

Inspection of foreign vessels calling at a port to verify compliance with international conventions; deficiencies may lead to detention until rectified, and results are published.

Related: Marine Department, Oil record book