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名词解释题
pitch

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考题 下面属于音调的英语单词是()。 A、TuneB、ToneC、AudioD、Pitch

考题 Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed ___.A.apparent slipB.true slipC.pitchD.propulsive efficiency

考题 Compared to a constant pitch propeller, a controllable pitch propellerA.more efficiently uses available engine powerB.operates at a lower efficiency at a fixed speedC.produces the same torque at lower engine powerD.develops its rated power at a lower speed

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考题 Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.()A对B错

考题 音名(Pitch name)

考题 The most powerful signal of stress is a change of pitch on the vowel.()

考题 pitch()A、倾斜B、横摇C、转变D、纵摇

考题 音高(Pitch)

考题 Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.()

考题 pitch

考题 下列哪一项不是由FMGC计算产生的()A、PITCH BARB、YAW BARC、FPVD、FPD

考题 在国家标准中规定,使用“pitch angle”来表示()。

考题 当正副驾驶的姿态、指示,即俯仰、翻滚、指示相差5度时()。A、PITCH显示在PFD左侧,ROLL显示在PFD右侧B、只显示PITCH在PFD上C、只显示ROLL在PFD上D、PITCH显示在PFD右侧,ROLL显示在PFD左侧

考题 名词解释题音高(Pitch)

考题 单选题Which characteristic is a disadvantage of a controllable- pitch propeller as compared to a fixed-pitch propeller? ()A Slightly higher fuel consumptionB Lack of directional control when backingC Inefficient at high shaft RPMD Some unusual handling characteristics

考题 单选题() is made of a boss with separated blades mounted into it.A A variable pitch propellerB A variable pitch nutC A fixed pitch parallelD A fixed pitch screw

考题 单选题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 operationB for CP, once fitted, the position of the blades can also be changed in operationC the CP type has a relatively smaller hub compared with the FP propellersD the FP type has a relatively larger hub compared with the CP propellers

考题 单选题A variable pitch propeller is made () a boss with separate blades mounted into it.A ofB up ofC fromD out

考题 单选题pitch()A 倾斜B 横摇C 转变D 纵摇

考题 单选题Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed ().A apparent slipB tree slipC pitchD propulsive efficiency

考题 名词解释题音名(Pitch name)

考题 单选题Compared to a constant pitch propeller, a controllable pitch propeller().A more efficiently uses available engine powerB operates at a lower efficiency at a fixed speedC produces the same torque at lower engine powerD develops its rated power at a lower speed

考题 单选题The pitch ratio of a propeller is the mean pitch divided by ().A the propeller diameterB the propeller radiusC the pitch angleD the length of helix

考题 单选题For vessels with (), the meaning of the order would include the combination of pitch and revolutions as indicated in ships orders.A fixed pitch propellersB uncontrollable pitch propellerC constant pitch propellersD variable pitch propellers

考题 单选题By which of the following means is force efficiently provided to vary the pitch of the blades on a modem controllable pitch propeller?()A HydraulicB MechanicalC PneumaticD Electrical