The directive force of a gyrocompass（）

1、The suction - force principle of opera

The suction - force principle of operation is a typical characteristic of （）.Acentrifugal pumpsBjet pumpsCpropeller pumpsDreciprocating pum

2、In the presence of external forces，the

In the presence of external forces，the center of buoyancy of an inclined vessel is vertically aligned with the（）.Acenter of gravityBmetacenterCcenter of flotationDkeel

3、In the absence of external forces，the

In the absence of external forces，the center of buoyancy of an inclined vessel is vertically aligned directly below the（）.Acenter of gravityBamidships stationCcenter of flotationDgeometric center of the waterplane area

4、Under the forces of its own weight，the

Under the forces of its own weight，the suspended length of line will fall into a shape known as a（）.ApolygonBholding arcCcatenary curveDparabolic curve

5、In the absence of external forces，addi

In the absence of external forces，adding weight on one side of a floating vessel causes the vessel to ().Aheel until the angle of loll is r...

6、The reaction of a gyrocompass to an ap

The reaction of a gyrocompass to an applied force is known as（）.AprecessionBearth rateCgyroscopic inertiaDgravity effect