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1 設有一皮帶的緊邊拉力為882N,鬆邊拉力為392N,皮帶輪直徑為30cm,轉速為300rpm,則其可傳達的馬力數約為
A 2.5PS
B 3.1PS
C 3.8PS
D 6.3PS

P=Tω

=(8829.83929.8)×0.15× 2π×30060×1/75

=π(PS)=3.14(PS)