Podcast
Questions and Answers
What is the purpose of keeping the air supply to the air spring open after finishing work on exhaust valves?
What is the purpose of keeping the air supply to the air spring open after finishing work on exhaust valves?
- Prevent carbon deposit from falling between the seat and valve (correct)
- Prevent exhaust valve from cooling down
- Prevent the oil flowing on the air side when main lub oil pump is running
- Keep it always on standby
What is the main cause of turbo-charger surging?
What is the main cause of turbo-charger surging?
- Too high turbo-charger rpm
- Sudden increase and decrease of turbo-charger rpm due to pitching (correct)
- Too low T/C rpm without auxiliary blower running
- Ship in rolling condition
Where does the cylinder lubricator supply oil in the engine?
Where does the cylinder lubricator supply oil in the engine?
- Cylinder block
- Cylinder head
- Cylinder liner (correct)
- Piston
When is grit dry cleaning of the M.E. turbo-charger turbine side typically performed?
When is grit dry cleaning of the M.E. turbo-charger turbine side typically performed?
In a two-stroke engine, when the piston is at bottom dead center and moving upwards until TDC, what cycle is achieved?
In a two-stroke engine, when the piston is at bottom dead center and moving upwards until TDC, what cycle is achieved?
Which part of the engine is primarily responsible for cooling the combustion chamber?
Which part of the engine is primarily responsible for cooling the combustion chamber?
What is the purpose of stopping the engine when not in use?
What is the purpose of stopping the engine when not in use?
Why does increasing scavenging air box temperature above dew point important?
Why does increasing scavenging air box temperature above dew point important?
In a two-stroke engine without an exhaust valve, what are the lowest holes in the cylinder liner called?
In a two-stroke engine without an exhaust valve, what are the lowest holes in the cylinder liner called?
How is a turbocharger usually powered in an engine?
How is a turbocharger usually powered in an engine?
What is usually found in large bored engines?
What is usually found in large bored engines?
When receiving 500 metric tons of HFO with a specific gravity (SG) at 55 deg C, how many cubic meters should be received based on a specified SG at 15 deg C?
When receiving 500 metric tons of HFO with a specific gravity (SG) at 55 deg C, how many cubic meters should be received based on a specified SG at 15 deg C?
What is the purpose of the emergency air compressor onboard?
What is the purpose of the emergency air compressor onboard?
What type of bearing is commonly used for the main engine main journal and big-end bearing due to its ability to support high weight/load without much wear?
What type of bearing is commonly used for the main engine main journal and big-end bearing due to its ability to support high weight/load without much wear?
When water washing the M.E. turbo-charger turbine side, at what reduced engine speed should you operate at?
When water washing the M.E. turbo-charger turbine side, at what reduced engine speed should you operate at?
What part of the diesel generator is impacted when adjusting the injection timing of the fuel injection pump?
What part of the diesel generator is impacted when adjusting the injection timing of the fuel injection pump?
What is the observed specific gravity of fuel if the specific gravity at 15°C is 0.8891 and the observed temperature is 40°C?
What is the observed specific gravity of fuel if the specific gravity at 15°C is 0.8891 and the observed temperature is 40°C?
What is the steel structural element in a slow-speed two-stroke engine that carries the crosshead guides and supports the engine block?
What is the steel structural element in a slow-speed two-stroke engine that carries the crosshead guides and supports the engine block?
