Ring the forecastle()(钟).
A、bell
B、clock
C、hammer
D、spanner
A、bell
B、clock
C、hammer
D、spanner
A、A.top of the ring groove B、B.back of the ring groove C、C.bottom of the ring groove D、D.piston ring end clearance
A、top of the ring groove B、cylinder liner oil film C、bottom of the ring groove D、back of the ring groove
A、A.excessive ring action B、B.excessive ring temperature C、C.improper ring rotation D、D.excessive ring face wear
A、The deck is divided into forecastle deck, main deck and poop deck. B、The deck is divided into forecastle deck, lower deck and main deck. C、The deck is divided into forecastle deck, main deck and lower deck. D、The deck is divided into main deck, lower deck and poop deck.
A、One ring life buoy B、One ring life buoy on each side of the ship C、Three ring life buoys D、Two ring life buoys on each side of the ship
A、A.increases the strength of the hook B、B.prevents the sling ring from coming out of the hook if the strain is abruptly eased C、C.prevents the sling ring from coming out of the hook if there is a strain on the sling ring D、D.All of the above