During repair,lubrication lines and or

1、Cleaning, painting and repair work is

Cleaning, painting and repair work is known as ______.Amaintenance workBsailor’s workCdaily work

2、During the deck repair,（） should be me

During the deck repair,（） should be measured firstly before tail shaft is drawn out.Athe sinking of tail shaftBthe clearance of stern bearingCthe total flexure of both end bearingDmain engine crankshaft deflectio

3、During loading or discharging, the tal

During loading or discharging, the tallymen must make contact with（）on duty so as to solve problems in time.Aship ownerBship's officersCshippersDconsignor

4、Repairing damage to the hull at or abo

Repairing damage to the hull at or above the waterline reduces the threat of（）.Afree surface effectsBcapsizingCcontinued progressive floodingDwind heel

5、Air line lubricators are used in compr

Air line lubricators are used in compressed air systems to lubricate （）.Athe suction and discharge valvesBtools and equipment served by compressed airCair line reducing valvesDall of the above

6、During loading or discharging，the tall

During loading or discharging，the tallymen must make contact with（）on duty so as to solve problems in time.Aship ownerBship’s officersCshippersDconsignor