The construction portfolio may be incl

1、（） may be fitted for operating the der

（） may be fitted for operating the derrick topping lift (the wire which adjusts the derrick height).AA capstanBA holdCA warp endDA mooring drum

2、The radiotelegraph alarm signal may be

The radiotelegraph alarm signal may be used to announce（）.Athat a distress message will followBa request for assistance in searching for a man overboardCan urgent warning about a cycloneDAll of the above

3、In the ship construction portfolio，mat

In the ship construction portfolio，materials which do not conform to ASTM or ABS specifications must also include the（）.Achemical and physical...

4、Which harmful consequence may be the r

Which harmful consequence may be the result of lube oil sludge accumulation? （）AClogged oil pump suction screensBIncreased oil operating temperaturesCSticking piston ringsDAll of the above

5、Allowances may be made for the expansi

Allowances may be made for the expansion and contraction in piping by the use of expansion joints or ().AUnionsBRetractable flangesCUnion bulkhead fittingsDBends or loops in the line

6、Liens may be created by the contract（）

Liens may be created by the contract（）they do not exist at common law.AwhereBwhetherCthereDand