1.Single Choice Problems 1) The following method A. Increase the small pulley diameter C. Increase the big pulley diameter and reduce the center distance can be used to increase the small pulley angle...


1.Single Choice Problems<br>1) The following method<br>A. Increase the small pulley diameter<br>C. Increase the big pulley diameter and reduce the center distance<br>can be used to increase the small pulley angle of belt drive.<br>B. Reduce the small pulley diameter<br>2)Belt drive under normal operating conditions, the phenomenon that exists between belt and pulley<br>is<br>A. Slipping<br>С. Creeping<br>D. Slipping and creeping<br>B. Exactly the same speed<br>3) A pair of meshing gear drive, the pinion material is 40Cr, the gear material is Number 45 steel, so the<br>contact stress at the engagement.<br>A. O HI<br>D. Not sure<br>Β. σΗι<br>C.O HI >OH2<br>: Ở H2<br><OH2<br>

Extracted text: 1.Single Choice Problems 1) The following method A. Increase the small pulley diameter C. Increase the big pulley diameter and reduce the center distance can be used to increase the small pulley angle of belt drive. B. Reduce the small pulley diameter 2)Belt drive under normal operating conditions, the phenomenon that exists between belt and pulley is A. Slipping С. Creeping D. Slipping and creeping B. Exactly the same speed 3) A pair of meshing gear drive, the pinion material is 40Cr, the gear material is Number 45 steel, so the contact stress at the engagement. A. O HI D. Not sure Β. σΗι C.O HI >OH2 : Ở H2 <>

Jun 11, 2022
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