()is halfway between the forward and after perpendiculars and is reference point for vessel construction.
- AHalf length
- BMid-body
- CCenter line
- DAmidshi
()is halfway between the forward and after perpendiculars and is reference point for vessel construction.
1、If clearance between a piston and the
If clearance between a piston and the cylinder wall is excessive, piston slap will occurThe slap itself is caused by ()Aalternation of side ...
2、In a () the center screw is driven and
In a () the center screw is driven and the outer screws idle.Asingle screw pumpBdouble-screw pumpCtriple screw pumpDcentripetal pum
3、The lines led forward from the bow and
The lines led forward from the bow and aft from the stern when a vessel is moored to the dock are().Abow and stern linesBbreast linesChalyardsDwar
4、If the length of a wire is halved and
If the length of a wire is halved and the cross-sectional area is doubled, the resistance will be ()AquarteredBunchangedCdoubledDquadrupled
5、The difference between a class A and a
The difference between a class A and a class B EPIRB is that the class A EPIRB().Aoperates on both military and civilian aircraft distress ...
6、The average of the forward and after d
The average of the forward and after drafts is the().Amean draftBtrue mean draftCmean of the calculated draftsDdraft at the center of flotatio