Marine Power Quiz

What is the main advantage of wind propulsion?

• A generator powered by electricity connected to a diesel motor

• A propulsion system that depends on consistent wind availability

• A steam-based propulsion system using coal or fuel

• A system that burns multiple fuels to reduce emissions

What marine engine component converts combustion force to mechanical energy?

• Cylinder Head

• Piston

• Piston Rod

• Crankcase

What best describes diesel-electric propulsion?

• Electricity-powered generator linked to a diesel engine

• Wind-dependent system

• Steam propulsion using coal

• Fuel-flexible system to reduce emissions

Which part ensures sealing of the combustion chamber?

• Cylinder Head

• Cylinder Liner

• Piston Rings

• Gasket

What defines a gas or tri-fuel propulsion system?

• Diesel-powered electricity generator

• Wind-based system

• Coal combustion-based propulsion

• Uses gas, diesel, or heavy fuel to minimize emissions

What component reuses exhaust gases to boost engine efficiency?

• Piston

• Air Cooler

• Economizer

• Turbocharger

In which engine type is one power cycle completed in one crankshaft revolution?

• Diesel-Electric Engine

• 2-Stroke Engine

• 4-Stroke Engine

• Steam Turbine

Which engine has a better power-to-weight ratio and fewer moving parts?

• 2-Stroke Engine

• Diesel Electric Engine

• Steam Turbine

• 4-Stroke Engine

What describes a closed feed system in marine engines?

• Operates using external water source

• Uses a loop system to control water quality and pressure

• Has fewer blades for compact design

• Uses guide vanes and rotor blades

What characterizes an impulse turbine?

• Complex guide vane design

• Suited for high flow, low pressure

• Uses pressure difference to expand steam gradually

• Compact design with few blades