石大网络教育2011春机械设计基础自测参考（Shi Da network education 2011 spring mechanical design basis self-test reference）.doc

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石大网络教育2011春机械设计基础自测参考（Shi Da network education 2011 spring mechanical design basis self-test reference）.doc

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石大网络教育2011春机械设计基础自测参考（Shi Da network education 2011 spring mechanical design basis self-test reference）

石大网络教育2011春机械设计基础自测参考（Shi Da network education 2011 spring mechanical design basis self-test reference） Examination questions 1. first RadioButtonList for normal tooth gear standard, does not undercut the minimum tooth number. A, 12 B, 14 C, 17 D, 19 Standard answer: C Your answer: C Subject score: 6 Score: 6 Annotation: 2., second question radio problems compared with belt drive, chain drive is one of the main features. A, cushioning, vibration reduction B, overload protection C and transmission ratio are not fixed values D, no skid Standard answer: D Your answer: D Subject score: 6 Score: 6 Annotation: 3., third questions, radio tape, the stress is the biggest. A, the loose side exit active small pulley at B, loose edge into the driven pulley C, the tight side into the active small wheel. D, tight side, exit driven large pulley Standard answer: C Your answer: C Subject score: 6 Score: 6 Annotation: In the 4. and fourth question radio questions, the idler wheel is characterized by. A, only change the direction of the transmission, do not change the size of the transmission ratio B, only change the transmission ratio of the size, without changing the direction of transmission C, neither change the direction of transmission, nor change the size of the transmission ratio D, both change the direction of transmission, and change the size of the transmission ratio Standard answer: A Your answer: A Subject score: 7 Score: 7 Annotation: 5., fifth questions, radio, according to the role of the shaft and the load can be divided into spindle, rotating shaft and transmission shaft, in which the shaft. A, only the bending moment, no torque B, only torque, no bending moment C takes both torque and bending moments D neither bears torque nor bears bending moment Standard answer: C Your answer: C Subject score: 7 Score: 7 Annotation: 6., sixth questions, more topics, the following are mainly used for transmission. A, triangular thread B, rectangular screw thread C, trapezoidal thre