搜题

【单选题】

On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measured by using a/an （）

A、dial indicator

B、outside caliper

C、bridge gauge

D、tram rod

查看正确答案

更多“On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measured by using a/an （）”相关的问题

第1题

[] The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by （）.

A、A.large conical springs B、B.compressed air pressure C、C.hydraulic pressure D、D.exhaust gas pressure

点击查看答案

第2题

[单选题] Which of the listed types of starting systems is often used on large, low-speed, direct reversing, main propulsion diesel engines?（）

A、Electric B、Hydraulic C、Air D、All of the above

点击查看答案

第3题

[单选题] A large, low-speed, crosshead, main propulsion diesel engine using residual fuel oils must have a cylinder oil having a （）

A、low TBN value B、high alkaline reserve C、low flash point D、high pour point

点击查看答案

第4题

[单选题] Which of the conditions listed could cause the cylinder relief valves on a large, low-speed, propulsion diesel engine to lift?（）

A、Plugged injector nozzles B、Excessive fuel injection C、Very late injection timing D、Incorrect crankshaft clearance

点击查看答案

第5题

[单选题] A large, low-speed, main propulsion diesel engine uses sea water to directly cool the （）.

A、cylinder heads B、exhaust valves C、scavenging air D、injectors

点击查看答案

第6题

[单选题] The opening of an exhaust valve on a modem, large, low-speed, main propulsion diesel engine may be actuated by （）.

A、direct action of cam shaft B、compressed air pressure C、hydraulic “push rods” D、direct action of the main piston moving down

点击查看答案

第7题

[单选题] 高速和野蛮操作舱盖均是危险的。（）

A、High-speed operation and rough handling of hatches are dangerous. B、Low-speed operation and rough handling of hatches are dangerous. C、Low-speed operation and rough handling of hatch covers are dangerous. D、High-speed operation and rough handling of hatch covers are dangerous.

点击查看答案

第8题

[] Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by （）

A、A.increasing the quantity of starting air B、B.increasing the lube oil pressure C、C.heating the engine fuel supply D、D.heating the engine coolant

点击查看答案

第9题

[单选题] （）(高速)operation and rough handling of covers are dangerous.

A、High-speed B、Low-speed C、Slow-speed D、Quick-speed

点击查看答案

账号：登录

TOP

请使用微信扫码支付

订单号：
遇到问题请联系在线客服