In a simple mechanical governor, the （）.

A、A.centrifugal force rotates the ball-head

B、B.flyweight centrifugal force is balanced by spring force

C、C.flyweight centrifugal force is balanced by hydraulic pressure

D、D.speeder spring alone actuates the fuel control rod

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更多“In a simple mechanical governor, the （）.”相关的问题

第1题

[单选题] In a simple mechanical governor, the （）

A、centrifugal force rotates the ball-head B、flyweight centrifugal force is balanced by spring force C、flyweight centrifugal force is balanced by hydraulic pressure D、speeder spring alone actuates the fuel control rod

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第2题

[单选题] The person on a ship who is responsible for maintaining the engineering spaces in a clean and sanitary condition is the（）.

A、Master，or person in charge B、Chief Engineer，or engineer in charge if no chief engineer is required C、Senior mechanic，or mechanic on duty if no senior mechanic designated D、Senior electrician，or electrician on duty if no senior electrician designated

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第3题

[单选题] Assume the tag handler for a st：simple tag extends Simple Tag Support. In what way can scriptlet code beused in the body of st：simple？（）

A、Set the body content type to JSP in the TLD B、Scriptlet code is NOT legal in the body of st：simple. C、Add scripting-enabled="true" to the start tag for the st：simple element D、Add a pass-through Classic tag with a body content type of JSP to the body of st：simple， and place the scriptlet code in the body of that tag

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第4题

[单选题] Injection lag in a diesel engine may be caused by（）

A、a higher cetane number of fuel oil B、the diesel fuel used having a high viscosity C、mechanical rigidity in the lube pump mechanism D、a decrease rigidity in the fuel pump delivery pressure

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第5题

[单选题] Certain dangerous goods are required “to be stowed in a mechanically ventilated space”. When such goods are carried in a closed Ro/Ro cargo space or a special category space，this space should（）.

A、be mechanically operated B、be temperature controlled C、be mechanically ventilated D、not allow to run its refrigeration or heating equipment

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第6题

[] Charging-air pressure increases if there is incorrect combustion and drop in the （） of the diesel engine.

A、A.machine efficiency B、B.machinery efficiency C、C.mechanical efficiency D、D.mechanics efficiency

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第7题

[] Assume the tag handler for a st：simpletag extends SimpleTagSupport. In what way can scriptlet code be used in the body of st：simple？（）

A、A. Set the body content type to JSP in the TLD B、B. Scriptlet code is NOT legal in the body of st：simple C、C. Add scripting-enabled= “true” to the start tag for the st：simple element D、D. Add a pass-through Classic tag with a body content type of JSP to the body of st：simple， and place the scriptlet code in the body of that tag.