Marine Engineer Quiz

1. What is the main function of a marine diesel engine on a ship?

A) Navigation B) Power generation C) Propulsion D) Cargo loading

2. What is the purpose of the ballast system on a ship?

A) Increase speed B) Control stability and balance C) Generate electricity D) Cool the engine

3. Which of the following prevents corrosion on a ship's hull?

A) Paint B) Anode C) Oil D) Wax coating

4. What is the unit of engine power measurement at sea?

A) Watts B) Horsepower C) Brake Horsepower (BHP) D) Kilograms

5. What is the primary fuel used in most marine engines?

A) Petrol B) LNG C) Heavy Fuel Oil (HFO) D) Diesel

6. What device filters fuel oil before it reaches the engine?

A) Fuel pump B) Centrifugal separator C) Governor D) Oil cooler

7. What does scavenge air do in a marine engine?

A) Cools the engine B) Controls fuel flow C) Removes exhaust gases and supplies fresh air D) Starts the engine

8. Which law is applied when calculating buoyancy?

A) Newton's Law B) Bernoulli's Principle C) Archimedes' Principle D) Pascal's Law

9. Which marine machinery is used for separating water from oil?

A) Air compressor B) Oil purifier C) Water pump D) Heat exchanger

10. What is the role of a governor in the marine engine?

A) Reduces temperature B) Controls engine speed C) Pumps lubricating oil D) Starts the engine

11. What happens when a ship's center of gravity rises?

A) Speed increases B) Stability reduces C) Draft reduces D) Engine overloads

12. What's the most common type of marine propeller?

A) Paddle wheel B) Fixed pitch C) Jet drive D) Contra-rotating

13. What is the use of Sea Chest in marine engineering?

A) Store tools B) Intake seawater for ship systems C) Store spare parts D) Cool the engine room

14. Which is a major cause of crankcase explosion?

A) High exhaust gas temperature B) Fuel quality C) Lube oil contamination D) Low cylinder pressure

15. Which of the following is NOT a heat exchanger in marine engines?

A) Jacket water cooler B) Charge air cooler C) Lube oil cooler D) Fire damper

16. What is the function of the thrust block?

A) Control the shaft speed B) Absorb axial thrust from the propeller C) Measure torque D) Purify lube oil

17. What is cavitation in a marine propeller?

A) Increased fuel flow B) Exhaust block C) Formation of vapor bubbles reducing efficiency D) Water leakage

18. What is SOLAS in the shipping industry?

A) Fuel standard B) Marine pollution law C) Safety of Life at Sea Convention D) Engine maintenance manual

19. What is the most critical lubrication system component?

A) Fuel pump B) Oil cooler C) Oil filter D) Governor

20. What is the TDC (Top Dead Center) in marine engines?

A) Fuel overflow point B) Cooling point C) Maximum piston height during a cycle D) Minimum fuel flow point

21. Which component controls air-fuel ratio in modern marine engines?

A) Fuel injector B) Turbocharger C) Electronic Control Module (ECM) D) Scavenging valve

22. Which of these is NOT a pollution control system on ships?

A) Exhaust Gas Scrubber B) Oily Water Separator C) Bilge Pump D) Propeller Shaft

23. What is the primary cause of marine engine knock?

A) Excess cooling B) Pre-ignition or abnormal combustion C) Over-lubrication D) Slow piston speed

24. In marine boilers, what is the purpose of a superheater?

A) Cool the steam B) Add water C) Increase steam temperature above saturation D) Purify water

25. What does IMO stand for in maritime regulations?

A) International Maintenance Organization B) International Marine Order C) International Maritime Organization D) International Marine Operation

Marine Engineer Quiz

🌟 Job Ready - 100% Scorers