A市甲企业委托B市乙企业加工一批应税消费品，该批消费品应缴税款应由乙企业向 B市税务机关解缴。（)

The difference between Fixed pitch propeller (FPP) and Controllable pitch propeller (CPP) is in that______ .

A.for FP, once fitted, the position of the blades can also be changed in operation

B.for CP, once fitted, the position of the blades can also be changed in operation

C.the CP type has a relatively smaller hub compared with the FP propellers

D.the FP type has a relatively larger hub compared with the CP propellers

The pitch ratio of a propeller is the mean pitch divided by _____.

A.the propeller diameter

B.the propeller radius

C.the pitch angle

D.the length of helix

Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed

A.apparent slip

B.true slip

C.pitch

D.propulsive efficiency

_____ is made of a boss with separated blades mounted into it.

A.A variable pitch propeller

B.A variable pitch nut

C.A fixed pitch parallel

D.A fixed pitch screw

A.apparent slip

B.true slip

C.pitch

D.propulsive efficiency

When the propeller blades are integral with the hub, the propeller is called a _____.

A.built up propeller

B.solid propeller

C.controllable pitch propeller

D.suction back propeller

A.fixed pitch propellers

B.uncontrollable pitch propeller

C.constant pitch propellers

D.variable pitch propellers

A controllable pitch propeller on a diesel driven vessel eliminates the need for

A.friction clutches

B.disconnect clutches

C.reversing gears

D.reduction gears

A. the extra weight required for the diesel reduction gearing

B. a minimum speed for the engines that limits the minimum speed of the vessel

C. the higher fuel consumption per SHP

D. the low efficiency of the system when a controllable pitch propeller is used