搜题
用户您好， 请在下方输入框内搜索其它题目：
搜题
题目内容 （请给出正确答案）
提问人：网友 发布时间：
【单选题】

The shaft and spare parts（） should be well greased in order to avoid corrosion.

A、in the store room

B、in the cylinder

C、in the scavenge air box

D、in the water box

查看正确答案
更多“The shaft and spare parts（） should be well greased in order to avoid corrosion.”相关的问题
第1题
[单选题] The primary line module has failed and the spare line module is nowactive.What occurs，by default，when the primary line module returns to an operational status？（）

A、The primary line module is inactive for five minutes and then becomes active.  B、The primary line module is in standby mode，while the spare line module remains active.  C、The primary line module becomes active immediately and the spare line module becomes inactive.  D、The primary and spare line modules are active for five minutes，after which time the spare line module becomes inactive.  

点击查看答案
第2题
[] The center line condition of the transmission shaft can be checked by（）

A、A.the border flange’s excursion and flection  B、B.the both end shafts line’s accordance  C、C.the border flange’s flection and the both end shafts line’s accordance  D、D.the border flange’s accordance and both end shafts flection degree  

点击查看答案
第3题
[单选题] Some vessels are equipped with a water lubricated stern robeWhen at sea, operating under normal conditions, the water service valve from the ships saltwater system to the bearing should be （）.

A、closed, and no leakage permitted across the shaft packing  B、closed, and only slight leakage permitted across the shaft packing  C、open, and no leakage permitted across the shaft packing  D、open, and only slight leakage permitted across the shaft packing  

点击查看答案
第4题
[单选题] An axial轴向 piston pump differs from a radial piston pump as the pistons of an axial piston pump are positioned （）.

A、radially from the shaft  B、parallel to each other and to the shaft  C、parallel to each other but at a right angle to the shaft  D、at an angle to each other and to the shaft  

点击查看答案
第5题
[单选题] To maintain design discharge pressure from a centrifugal pump, the design clearance must be maintained between the （）.

A、shaft and impeller  B、motor and pump shaft  C、casing and impeller wearing rings  D、lantern ring and impeller  

点击查看答案
第6题
[单选题] When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?（）

A、The propeller hub taper and shaft keyway should be inspected for cracks or corrosion  B、The stern bearing alignment with the stern frame should be checked  C、The interior of the stern tube should be inspected for leaks  D、The shaft liner should be removed and inspected  

点击查看答案
第7题
[单选题] Which of the following is operated from the main engine room console on an automated vessel?（）

A、Fire pump and lube oil pump  B、Lube oil pump and distilling plant  C、Distilling plant and shaft alley door  D、Shaft alley door and fixed CO2 release  

点击查看答案
第8题
[单选题] When replacing a part with a spare one, we should fill in tile spare parts consume table in time and make a mark in brief for （）

A、the reason of replacing  B、the course of replacing  C、crews who do this work  D、where and when the replacing being done  

点击查看答案
第9题
[] Which statement is TRUE concerning spare charges for portable fire extinguishers on unmanned tank barges?（）.

A、A.Spare charges shall be carried for at least 50 percent of each size and variety required on board  B、B.If the unit cannot be charged by the vessel's personnel，one spare unit shall be carried in lieu of spare charges  C、C.Spare charges shall be stowed in watertight containers on deck  D、D.Regulations concerning spare charges do not apply to unmanned barges  

点击查看答案
账号：
答题记录 我的收藏 我的题库
客服
TOP

请使用微信扫码支付

订单号：
遇到问题请联系在线客服