搜题

【单选题】

The two most common gases used in pneumatic system are （）

A、compressed air and nitrogen

B、helium and nitrogen

C、oxygen and hydrogen

D、oxygen and acetylene

查看正确答案

更多“The two most common gases used in pneumatic system are （）”相关的问题

第1题

[单选题] （） the engines, the diesel engine is（） used engine on board.

A、Between；more commonly B、Among；the most commonly C、Between；not more commonly D、Among；not the most commonly

点击查看答案

第2题

[单选题] The star formation is most commonly used and requires（） on the alternator.

A、one slip-ring B、two sliprings C、three sliprings D、four sliprings

点击查看答案

第3题

[单选题] In practice， a set of（）original bills of lading is the most common.

A、one B、two C、three D、four

点击查看答案

第4题

[单选题] In practice， a set of（）original bills of lading is the most common.

A、one B、two C、three D、four

点击查看答案

第5题

[单选题] The separate supplies are connected in either star or delta formationThe star formation is most commonly used and requires（） slip-rings on the alternator.

A、two B、three C、four D、five

点击查看答案

第6题

[单选题] （）uses one or two high pressure pumps for all the cylinders with one more standby, while（）have a separate high-pressure pump for each cylinder.

A、A common rail engine；conventional engines B、A conventional engine；common rail engines C、A marine diesel engine；most other engines D、A two-stroke engine；four-stroke engines

点击查看答案

第7题

[] The container ship is the （）type of dry cargo carrier.

A、A. important B、B. most modern C、C. most common D、D. traditional

点击查看答案

第8题

[单选题] The use of sinking and dispersing agents for the removal of surface oil is （）.

A、the most common method used in the United States B、too expensive for common use C、generally safe to sea life D、generally harmful to sea life

点击查看答案

第9题

[单选题] The device that most commonly utilizes the principle of electromagnetic induction is the（）.

A、diode B、transformer C、transistor D、rheostat

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