A、A.apparent slip
B、B.tree slip
C、C.pitch
D、D.propulsive efficiency
更多“Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed （）.”相关的问题
A、A.built up propeller B、B.solid propeller C、C.controllable pitch propeller D、D.suction back propeller
A、fixed pitch propellers B、uncontrollable pitch propeller C、constant pitch propellers D、variable pitch propellers
A、A variable pitch propeller B、A variable pitch nut C、A fixed pitch parallel D、A fixed pitch screw
A、Slightly higher fuel consumption B、Lack of directional control when backing C、Inefficient at high shaft RPM D、Some unusual handling characteristics
A、A.more efficiently uses available engine power B、B.operates at a lower efficiency at a fixed speed C、C.produces the same torque at lower engine power D、D.develops its rated power at a lower speed
A、A.more efficiently uses available engine power B、B.operates at a lower efficiency at a fixed speed C、C.produces the same torque at lower engine power D、D.develops its rated power at a lower speed
A、angle that the propeller makes with a free stream of water B、angle that the propeller makes with the surface of the water C、number of feet per revolution the propeller is designed to advance in still water without slip D、positive pressure resulting from the difference of the forces on both sides of the moving propeller in still water without slip
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