八年級賽龍舟作文

八年級關于賽龍舟作文

　　德爾福機械類筆試，一般都會考什么類型的題目呢？應屆畢業生求職網為大家揭曉：

　　1,briefly describe what is blanking(cutting),forming,coining and embossing　in stamping process.

　　2,what is metal clading?

　　3,what is the purpose of adding glass fiber to thermoplastic material?

　　4,in contrast with metal and thermoplastic material,which has a higher　coefficient of thermal expansion(cte).

　　5,the most suitable material for a integral hinge design(typical plastic　thickness=0.25 to 0.5mm at hinge)

　　6,can a bending load makes both compressive and tensile stress in a member?

　　7,what is the design criteria used in plastics catch/snap?

　　8,what is fea?

　　9,why is natural frequency important in vibration analysis?

　　10,what is the deflection equation of a cantilever beam fixed at one edge?

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