机械专业英语试题及答案.docx

课程机械工程专业英语课程性质（□必修□限选□任选）考试方式（□闭卷□开卷）一、选择题（在每题四个备选答案中选出一个正确答案，本大题共15小题，每小题1分，总计15分）1. If all points in a linkage move in parallel planes the system undergoes planar motion and the linkage may be described as a .A. planar motion B. planar linkage C. joints D. slide 2. Though frame material and design should handle damping, are sometimes built into frame sections to handle specific problems.A .beams B. holes C. dampers D. screw3. The maximum allowable deflection of a shaft ______ determined by critical speed, gear, or bearing requirements. A. often B. must C. was D. is usually 4. We will have to _____ to better and better solutions as we generate more information. A. repeat many times B. iterating C. iterate D. try ways 5. If a product configuration is _______ specified and then examined to determine whether the performance requirements are met.A. finally B. tentatively C. temporary D. have been6. Manufacturing can be defined as the _____ of raw materials into useful products through the use of the easiest and lest-expensive methods.A. transformation B. processing C. process D. transforming7. The planer and knee types of milling machine is _____ because of its flexibility. A. used most commonly B. most popular C. the most commonly used D. most powerful8. As a result, the system will vibrate at the frequency of the _____ force regardless of the initial conditions or natural frequency of the system. A. action B. excitation C. out D. act9. Before two components are assembled together, the relationship between the dimensions of the mating surfaces_______.A. must be giving out B. should printed clearlyC. must be specified D. should be clearly noted 10. The main practical advantage of lower pairs is their better ability to trap lubricant between their ______ surfaces. A. enveloping B. mating C. outer D. outside11. The word______ itself usually refers