The force exerted by a propeller which tends to throw the stern right or left is called().
A、slip
B、sidewise force
C、rotational force
D、thrust
A、slip
B、sidewise force
C、rotational force
D、thrust
A、centrifugal force rotates the ball-head B、flyweight centrifugal force is balanced by spring force C、flyweight centrifugal force is balanced by hydraulic pressure D、speeder spring alone actuates the fuel control rod
A、exerted by liquid cargo on the sides of a tank B、exerted by liquid cargo on a cargo hose body C、the lowest temperature and pressure that will cause a flammable liquid to give off vapors D、a measurement of the amount of flammable vapors given off by a liquid at a certain temperature
A、A.centrifugal force rotates the ball-head B、B.flyweight centrifugal force is balanced by spring force C、C.flyweight centrifugal force is balanced by hydraulic pressure D、D.speeder spring alone actuates the fuel control rod
A、upward-acting weight force B、downward-acting weight force C、upward-acting buoyant force D、environmental force
A、needles are nearly in line with the meridian B、vessel is near the magnetic poles C、variation is near zero D、vessel is near the magnetic equator
A、help keep the deck dry B、prevent stress concentrations on the stringer plate C、protect against twisting forces exerted on the frame of the vessel D、reinfo ce th eside stringers