During check on top clearance in main bearings, turn the crankthrow for the relevant cylinder unit to () and stop the lube oil circulating pump.
A、port side
B、starboard side
C、BDC position
D、DC position
A、port side
B、starboard side
C、BDC position
D、DC position
A、on both the external and internal top edges B、on both the external top and bottom edges C、on both the external and internal bottom edges D、on all the four edges
A、The policy is determined after the SCREEN options check. B、The policy is determined only during the first packet path, not during fast path. C、The policy is determined after the zone check. D、The policy is determined after the SYN TCP flag.
A、On top of No.1 hatch B、Beside the hatches,forward of the midships house C、On top of the hatch immediately forward of the midships house D、On top of the hatch immediately aft of the midships house
A、after its arrival at the destination B、during the ship's voyage at sea C、before they come to the dock D、during the time when the loading or diacharging is going on
A、On top of No.1 hatch B、Beside the hatches, forward of the midships house C、On top of the hatch immediately forward of the midships house D、On top of the hatch immediately aft of the midships house