A、A.butterfly valve
B、B.spectacle valve
C、C.check valve
D、D.globe valve
更多“The valve on the discharge side of a cargo pump on a tank vessel will usually be a（）.”相关的问题
A、cam rollers on the camshaft B、spring force C、air pressure on top of the valve differential piston D、air pressure on the bottom of the valve differential piston
A、open and individual tank valves open B、open and the individual tank valves closed C、closed and the individual tank valves closed D、closed and the individual tank valves open
A、open and individual tank valves open B、open and the individual tank valves closed C、closed and the individual tank valves closed D、closed and the individual tank valves open
A、the starting air distributor B、the cut-off valve on the air main C、the main starting valve D、the air bottle control valve
A、one valve seats upwards, while the other seats downwards B、the reed valves used on the discharge are made substantially thicker and heavier than the suction valves C、the suction valve springs exert a greater tension than the discharge valve springs D、the discharge valve springs exert a greater tension than the suction valve springs
A、reduce wear on the valve stem B、permit the use of alloy valve seat materials C、reduce heat transfer from the valve seat D、facilitate valve removal for servicing
A、Router A remains the DIS and generates a new pseudonode LSP for that LAN B、Router A remains the DIS and NO new pseudonode LSP is generated for that LAN C、Router D becomes the new DIS, generates a new pseudonode LSP for that LAN, and purges the old pseudonode LSP generated by Router A D、Router D becomes the new DIS, does NOT generate a new pseudonode LSP for that LAN, and does NOT purge the old pseudonode LSP generated by Router A
A、A.the relief valve should open before the high pressure cutout B、B.the relief valve should open and allow the excess refrigerant to flow to the receiver C、C.the high pressure cutout switch should operate before the relief valve opens D、D.you should close in on the suction valve
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