When carrying out the voyage trial, the M-E is not necessary to take（）trial.

单项选择题After repair, the voyage trial of the M-E should be done （）

A.after the mooring trial has passed
B.before the mooring trial
C.under the surveyors supervision
D.after repair

单项选择题In the M-Emooring trial, the starting trial is carried under（）

A.cold condition
B.stillness condition
C.certain air pressure
D.the surveyors supervision

单项选择题When carrying out mooring trial, if the M√Ecan’t start normally, you should （）

A.take a further inspection in the voyage
B.check and repair, then retrial
C.do as the surveyor’s requirement
D.retrial

单项选择题When carrying out mooring trial, the （） trial of the MEis not necessary.

A.starting
B.torsion vibration
C.direction changing
D.running

单项选择题（）does not belong to the mooring trial item.

A.generator sets running trial
B.shafting intensity trial
C.the trail for pumps that working for ME
D.ME safety devices trial