Marine Power Propulsion Systems Quiz

What is the primary function of a marine propulsion system?

• To generate electricity

• To provide heating

• To store fuel

• To move a ship through water

Which of the following is NOT a type of marine propulsion system mentioned?

• Gas turbines

• Diesel engines

• Electric propulsion

• Nuclear reactors

What does the term 'horsepower' (HP) measure in marine engines?

• Torque

• Engine size

• Engine output

• Fuel efficiency

What is the significance of the compression ratio in an engine?

• It measures the engine's speed

• Higher ratios lead to better fuel efficiency

• It affects the engine's weight

• It determines the engine's size

In diesel engines, what is the role of the fuel injection system?

• To measure engine speed

• To ignite the fuel

• To cool the engine

• To deliver fuel into the combustion chamber

What is the main advantage of electric propulsion systems?

• Lower maintenance costs

• Higher horsepower

• Faster acceleration

• Flexible power management

Which component of a steam turbine system is responsible for converting steam energy into mechanical energy?

• Pump

• Turbine

• Condenser

• Boiler

What is the primary purpose of the lubrication system in a steam turbine?

• To cool the steam

• To reduce friction and wear

• To increase pressure

• To store fuel

What is the difference between impulse and reaction turbines?

• Impulse turbines have a sudden pressure drop, reaction turbines have a gradual drop

• Impulse turbines have a rotor, reaction turbines do not

• Impulse turbines are more efficient than reaction turbines

• Impulse turbines use steam pressure, reaction turbines do not

Why are alternative fuels important in marine propulsion?

• They are easier to store

• They increase engine power

• They reduce emissions and improve environmental performance

• They are cheaper than traditional fuels