Positive SSL
1 若軸轉數N(rpm),扭矩為T(kg‧m),則軸所傳送之馬力PS為
A 2πRNF/63000
B 2πT/450000
C NT/4500
D TN/716.2

PS=T× ω

=T×(2πN/60)×(1/75)=TN/716.2