After the boat is at the top of the davit heads,the davit arms begin moving up the tracks and are stopped by the().
- Ahoist man
- Blimit switch
- Cbrake handle
- Dpreventer bar
After the boat is at the top of the davit heads,the davit arms begin moving up the tracks and are stopped by the().
1、Each cylinder is closed at the top by
Each cylinder is closed at the top by a _____, made of a special heat-resistant steel.Acylinder linerBcoupling flangeCcylinder coverDpiston crown
2、Each cylinder is closed at the top by
Each cylinder is closed at the top by a (), made of a special heat-resistant steel.Acylinder linerBcoupling flangeCcylinder coverDpiston crow
3、()is from baseline to top of the upper
()is from baseline to top of the upper deck breadth at the ship’s side amidships.AExtreme draftBMolded draftCExtreme depthDMolded depth
4、On the top of the cylinder is mounted
On the top of the cylinder is mounted the cylinder cover which is pressed onto () of the cylinder liner by means of nuts and studs.Athe camshaftBthe flangeCthe ridgeDthe bulge
5、At which layer of the OSI model is the
At which layer of the OSI model is the optimal path to a network destination determined at?()A Data LinkB SessionC PhysicalD PresentationE NetworkF Transport
6、After a seaman is discharged,at the en
After a seaman is discharged,at the end of the voyage,the final payment of wages due must be made at the earlier of within 24 hours after...