A.natural gas B.diesel oil C.propane D.bunker fuel
A.one engine ahead and one engine astern，with full rudder B.one engine ahead and one engine astern，with rudders amidships C.both engines ahead，with full rudder D.both engines astern，with full rudder
A.Cylinder head valves B.Ports C.Turbo chargers D.Bleeder valves
A.in sight of the main engine(s) B.in a tray lined with suitable material that resists damage from the electrolyte C.in locked closets with restricted ventilation D.near the bilge to lower the center of gravity and improve stability
A.low voltage trip B.reverse power trip C.damage to windings D.excessive exhaust temperatures
A.They regulate the combustion cycle B.They supply cooling water C.They synchronize the ignition spark D.They supply and regulate the lubricant flow
A.furnishes support to the rudder，propeller shaft，and transom frame B.provides foundations for after mooring winches C.provides foundations for the main propulsion engines D.transfers the driving force of the propeller to the hull
A.absorb the shock of wave pressure at the bow B.be placed between the engines and the foundation to absorb the vibration C.transmit the thrust of the engine to the propeller D.transmit the thrust of the propeller to the vessel
A.discharge a CO2 extinguisher in the air inlet B.pull off the distributor cap C.secure the jacket water D.secure the starting air supply valve
A.devil's claw B.bull gear C.wildcat D.cat head
