更多"Most pump manufacturers recommended"的相关试题:
[单项选择]Most pump manufacturers recommend that the suction piping dimension for centrifugal pumps be （）.
A. one size smaller than the pump suction nozzle
B. the same size as the pump suction nozzle
C. one size larger than the pump suction nozzle
D. installed with a short radius elbow at the pump
[单项选择]A spur gear pump should be operated with the discharge valves （）.
A. slightly opened
B. throttled
C. fully opened
D. halfway opened
[单项选择]The most suitable pump for oily water separator feed duties is （）.
A. a reciprocating pump
B. a vane pump
C. a centrifugal pump
D. a triple screw pump
[单项选择]In most pumps and pump motors overpacking the ball bearings full of grease will result in （）
A. moisture emulsification of the bearing grease
B. insufficient circulation and overheating of the bearing
C. proper grease circulation to cool the bearing
D. sliding friction between balls and races
[单项选择]When distilling salt water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.
A. to cut down the amount of cooling water needed
B. to prevent an excess amount of cooling water from being discharged to the bilges
C. to supply hot water to the evaporator for more economical operation
D. None of the above is tree
[单项选择]You detect oil around your tank vessel while discharging. The first thing to do is（）.
A. try to find out where the oil is coming from
B. call the master
C. have the pumpman check the discharge piping
D. shut down operations
[单项选择]Where the Shipowner has accepted the port of discharge named by the Charterer，he must go there although it is not prospectively safe，and claim damages for injury（）the ship by reason of the port not being safe.
A. by
B. on
C. to
D. in
[单项选择]The soda-acid portable extinguishers must be discharged and refilled （）.
A. every six months
B. every year
C. every one and half year
D. every two years
[单项选择]Both the Shipowner and the Charterer will be discharged from their obligations under the charter-party if it（）frustrated.
A. provides
B. becomes
C. contains
D. comes
[单项选择]A vessel puts into the port of Kobe，Japan to discharge cargo. While awaiting completion of the cargo operation，the vessel contracts with a local shipyard to have the hull chipped，scaled，and painted. How is the cost of this maintenance handled with the Collector of Customs?（）
A. A declaration is required and duty is involved on the total cost
B. No declaration is required since this is considered routine maintenance
C. A declaration is made and duty is charged on the materials only
D. A declaration is made，but duty is charged on the labor only
[单项选择]APU火警面板上的DISCH灯受什么部件控制?
A. FDU
B. 灭火瓶上的压力电门
C. SDAC
[单项选择]发动机火警面板上的DISCH灯受什么部件控制？
A. FDU
B. FWC
C. 灭火瓶上的压力电门
[单项选择]驾驶舱头顶面板发动机火警DISCH指示灯亮表示（）
A. 发动机灭火瓶已待命
B. 发动机灭火瓶已释放
C. 发动机探测到火警
[单项选择]货舱烟雾（CARGO SMOKE）面板，释放（DISCH）灯什么时候亮（）
A. 当按压相应释放按钮后，该琥珀色灯亮，表示瓶中的灭火剂已经完全释放
B. 当按压释放按钮后60秒以内，该琥珀色灯亮，表示瓶中的灭火剂已经完全释放
C. 当按压相应释放按钮后，灭火瓶没有释放，该琥珀色灯亮
[单项选择]Which pump is the self-priming pump?（）
A. turbine
B. centrifugal
C. ejector
D. mixed flow
[单项选择]当电瓶放电超过多大时，“DISCH”灯亮，EICAS出现“MAINBATDISCH”或“APUBATDISCH”提示？（）
A. 3amp
B. 6amp
C. 10amp
D. 12amp
[单项选择]The （）pump is usually used as the bilge feed pump to an oily water separator.
A. turbine
B. screw
C. vane
D. ejector
