With the shell and cap assembled as for running, a check must be made that the clearance between the cap and the housing ().
A、A.has a nip
B、B.is large enough
C、C.is zero
D、D.are suitable
A、A.has a nip
B、B.is large enough
C、C.is zero
D、D.are suitable
A、higher than the first stage feed-water temperature and absolute shell pressure B、lower than the first stage feed-water temperature and absolute shell pressure C、the same as the first stage feed-water temperature and absolute shell pressure D、not related to the feed-water temperature and absolute shell pressure
A、bow and stern shell frames and plating B、junction of the frames with the beams and floors C、garboard strake,at each side of the keel D、thrust bearing of the main shaft
A、the single skin side shell and the inner bottom B、deck strips,hatch covers and coamings C、the vertically corrugated transverse watertight bulkheads D、the single skin side shell between topside and hopper tanks,and the cross deck strips,hatch covers and coamings
A、has much to do with the operation of the engine and its life B、have much to do with the operation of the engine and its life C、has much doing with the operation of the engine and its life D、have much doing with the operation of the engine and its life
A、tank top B、compartment between the tank top and shell of the vessel C、inner side of the vessel's shell D、space between two transverse bottom frames
A、tank top B、compartment between the tank top and shell of the vessel C、inner side of the vessel's shell D、space between two transverse bottom franges
A、approach the buoy with the wind and current astern B、approach the buoy with the wind and current ahead C、approach the buoy with wind and sea abeam D、stop upwind and up current and drift down on the buoy