Marine Engineering Quiz

What is the main function of a marine boiler?

• Control engine RPM

• Filter seawater

• Generate steam for propulsion and heating

• Pump fuel into the engine

Which type of marine boiler is more efficient and widely used at sea?

• Fire-tube boiler

• Water-tube boiler

• Gas-fired boiler

• Steam coil boiler

What method does a freshwater generator use to convert seawater?

• Reverse osmosis

• Vacuum evaporation

• Filtration

• Ion exchange

What device removes salt during freshwater production?

• Filter

• Chlorinator

• Demister

• Diffuser

Which system supplies hot water and maintains pressure in accommodation areas?

• Ballast system

• Drinking and domestic water system

• Bilge system

• Lube oil system

What type of pump is ideal for high-pressure precision applications?

• Gear pump

• Piston pump

• Screw pump

• Centrifugal pump

What defines a pump’s operational capacity?

• Oil type

• Head, flow rate, and efficiency

• Boiler size

• Shaft length

What system manages vessel stability and trim?

• Ballast system

• Steering gear

• Bilge system

• Pumping system

What component of the steering gear system provides redundancy?

• Electric clutch

• Bilge pump

• Emergency backup system

• Vane lock

What determines the efficiency of a refrigeration system?

• Tank size

• Heat exchanger type

• Coefficient of Performance (COP)

• Gas volume