6
Which fuel is used for the propulsion of deep sea fishing vessels
EXPLANATION
Selective & Eco-Friendly Fishing Gears
- Propulsion of Deep-Sea Fishing Vessels:
- Deep-sea mechanized fishing vessels (such as trawlers, tuna longliners, and purse seiners) operate exclusively on marine diesel engines utilizing diesel fuel (High Speed Diesel, HSD / Marine Gas Oil, MGO).
- Reasons for Diesel:
- High fuel economy and thermal efficiency.
- Superior high-torque output required for dragging heavy trawl gears.
- Safety: Diesel has a high flash point ($\gt 60^\circ\text{C}$), preventing explosive fire hazards at sea, unlike low-flashpoint petrol (gasoline).
- Correct Option: Option 2 (Diesel).
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