Marine Diesel Engine Interlocks Quiz

What is the primary function of low lubricating oil pressure interlocks?

• To provide a manual emergency shutdown

• To monitor exhaust gas temperature

• To monitor lubricating oil pressure

• To monitor engine speed

What action does the overspeed interlock take when the engine exceeds the maximum RPM limit?

• Activates cooling systems

• Increases engine load

• Cuts off fuel supply

• Engages emergency stop

Which interlock is designed to prevent overheating of the engine?

• Low Lubricating Oil Pressure Interlocks

• Starting/Gear Engagement Interlocks

• High Cooling Water Temperature Interlocks

• Emergency Stop Interlocks

What is the purpose of emergency stop interlocks?

• To allow immediate cessation of engine operation

• To monitor exhaust gas temperature

• To monitor engine speed

• To ensure safe starting sequence

What condition must be met for starting/gear engagement interlocks to allow operation?

• Lubricating oil pressure must be high

• Proper valve positions or clutch engagement

• Engine temperature must be low

• Exhaust gas temperature must be normal

What does high exhaust gas temperature interlocks monitor?

• Lubricating oil pressure

• Cooling water temperature

• Engine speed

• Exhaust gas temperature

What happens if the lubricating oil pressure drops below a safe threshold?

• Cooling water flow is adjusted

• Engine continues to operate

• Engine speed increases

• Interlock triggers to halt engine start-up

Which interlock is activated to prevent mechanical failure due to excessive speed?

• Emergency Stop Interlocks

• High Cooling Water Temperature Interlocks

• Overspeed Interlocks

• Low Lubricating Oil Pressure Interlocks

What is the action taken by high cooling water temperature interlocks when temperatures exceed safe limits?

• Increases engine load

• Initiates shutdown

• Activates emergency stop

• Cuts off fuel supply

What is the main purpose of interlocks in marine diesel engines?

• To enhance engine speed

• To prevent potential hazards

• To increase fuel efficiency

• To monitor exhaust emissions