A rapid rise or fall of the barometer indicates().
- Aheavy rain within six hours
- Ba decrease in wind velocity
- Ca change in the present weather conditions
- Dthat fog will soon set i
A rapid rise or fall of the barometer indicates().
1、The discharge rate or capacity of a ce
The discharge rate or capacity of a centrifugal pump will vary directly as the ().Achange in the impeller diameterBsquare of the impeller radiusCcube of the impeller diameterDimpeller efficiency for large changes in its size
2、A continual worsening of the list or t
A continual worsening of the list or trim indicates().Anegative GMBpropressive floodingCstructural failureDan immediate need to ballast
3、A virtual rise in the center of gravit
A virtual rise in the center of gravity may be caused by().Afilling a partially filled tankBusing an on board crane to lift a freely swinging heavy objectCemptying a partially filled tankDtransferring ballast from the forepeak to the after peak
4、The owner or Master of a towing vessel
The owner or Master of a towing vessel shall ensure that all tests and inspections of gear take place and are logged().Aon each watch,immed...
5、Swell is the rise and fall of the ocea
Swell is the rise and fall of the ocean’s surface due to().AfetchBdistant windsClocal stormsDthe pull of the moo
6、If water is rising in the bilge of a l
If water is rising in the bilge of a lifeboat,you should FIRST().Aabandon the survival craftBcheck for cracks in the hullCshift all personnel to the sternDcheck the bilge drain plug