Anchor（） are used in some installation

1、You are planning to anchor in an area

You are planning to anchor in an area where several anchors have been lost due to fouling.As a precaution，you should（）.Aanchor using both anchorsBanchor with scope of 8 or more to 1Cuse a stern anchorDfit a crown strap and work wire to the anchor

2、（）are used for anchor gear in marine w

（）are used for anchor gear in marine work where the chains must withstand the corrosive effects of seawater.AChainsBWiresCRopesDLine

3、Which three are used in configuring Ca

Which three are used in configuring Call Manager dial plans? （）A route listB route groupC gateway listD route patter

4、In a hydraulic system, （） are used to

In a hydraulic system, （） are used to protect the system from over pressure.Astop valvesBcheck valvesCsafety valvesDreducing valve

5、Fusible plugs are installed in fire-tu

Fusible plugs are installed in fire-tube boilers to _____.Aprovide a means of draining the boilerBwarn the engineer of low water levelCcool the crown sheet at high firing ratesDopen the burners electrical firing circuits

6、In some parks visitors are requested t

In some parks visitors are requested to keep（）the grass.AasideBawayCoutDoff