【名词&注释】
轴承座孔(bearing saddle bore)、静平衡试验(static balance test)、理论值(theoretical value)、符合要求(meet the requirement)、螺旋桨静平衡、基本约束条件(basic constraint conditions)、随遇平衡(indifferent equilibrium)
[单选题]螺旋桨修理后的半径和各种螺距的偏差值应符合标准,偏差值是指()之差。
A. 设计值与计算值
B. 实测值与计算值
C. 设计值与实测值
D. 理论值与实测值
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学习资料:
[单选题]换新薄壁轴瓦时,()的操作是错误的。
A. A.不可拂刮合金层
B. B.不可使用调节垫片
C. C.把轴瓦压入轴承座孔
D. D.通过修刮瓦口调节瓦口扩张量
[单选题]轴系合理校中的基本约束条件(basic constraint conditions)有()。
A. 轴承负荷
B. 轴段内的应力、弯矩
C. 轴段的转角
D. A+B+C
[单选题]螺旋桨静平衡试验后各桨叶应能达到()。
A. 不平衡的重量小于许用值
B. 随遇平衡(indifferent equilibrium)
C. 重心与回转中心之距符合要求
D. 无振动
[单选题]柴油机备车工作包括()。Ⅰ.校对时钟与舵机;Ⅱ.暖机与各系统准备;Ⅲ.开启舱底应急吸口阀;Ⅳ.转车、冲车与试车
A. Ⅰ+Ⅱ+Ⅲ
B. Ⅰ+Ⅱ+Ⅳ
C. Ⅱ+Ⅲ+Ⅳ
D. Ⅰ+Ⅲ+Ⅳ
[单选题]Four strokes consist of suction, compression, () and exhaust stroke.
A. combustion
B. condensation
C. charging
D. evaporatio
[单选题]If diesel oil in this tank is used, the () of the oil must not exceed 120 degree F.
A. viscosity
B. flash point
C. acid value
D. temperature
[单选题]Which of the following statements is true concerning an oil cooler?()
A. The oil temperature is less than the cooling water temperature
B. The oil pressure is less than the cooling water pressure
C. The oil pressure is greater than the cooling water pressure
D. The oil flow control valve is always installed in the oil input line
[单选题]White smoke exhausting from an operating diesel engine may indicate ().
A. a cracked liner
B. burning lube oil
C. an overloaded engine
D. insufficient combustion air
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