HK Engine Operator Grade 3 case studies
HK Engine Operator Grade 3 · Put your knowledge to work in context.
The Hong Kong Engine Operator Grade 3 credential is a local marine qualification administered under the Marine Department's seafarer certification framework. It is aimed at engine-room personnel operating on Hong Kong local vessels who need to demonstrate basic competence in engine operation, watchkeeping and machinery care. The HK Engine Operator Grade 3 case studies are 5 cases and about 3,482 words.
1Cooling failure on a passenger launch approaching a typhoon shelter
At 21:40 a 22 m local passenger launch, powered by a single 6-cylinder 180 kW diesel engine, is proceeding at 1,200 rpm from Central to Cheung Chau with 48 passengers. The engine operator on watch notices the fresh water outlet temperature has risen from 82°C to 96°C in six minutes, the exhaust gas temperature on cylinder 6 is 510°C against 390°C on the others, and the raw water pressure gauge has dropped from 1.2 bar to 0.4 bar.
631 words, about 3 min2Low lube oil pressure after a generator service
A 300 kW diesel generator on a local vessel has just had its lube oil and filters changed. After restart, oil pressure reads 1.9 bar at 1,500 rpm, against a normal 3.2-3.6 bar, oil temperature is 95°C, and the engine emits blue smoke.
609 words, about 3 min3Fuel spray fire on a local vessel engine
At 02:15 a 26 m local vessel is underway off Lamma with three crew and no passengers. The engine room smoke alarm operates.
759 words, about 4 min4Diesel overflow during bunkering at a typhoon shelter pier
At 10:20 a local vessel is taking 4,000 L of marine diesel at a public pier in Aberdeen Typhoon Shelter. The receiving tank has a capacity of 3,000 L and is currently at 2,200 L; the engineer intends to fill it to 2,900 L.
739 words, about 4 min5Loss of propulsion near the Star Ferry route
At 18:05 a 20 m local vessel with 30 passengers is crossing the harbour near the Star Ferry route when the main engine stops with a loud knocking and will not restart; the propeller shaft is free. The vessel is making 4 knots from residual way, wind from the east at 15 knots, tide setting west at 1 knot.
744 words, about 4 min