Q 31. A band brake having band – width of 80 mm, drum diameter of 250 mm, coefficient of friction of 0.25 and angle of wrap of 270 degrees is required to exert a friction torque of 1000 N m. The maximum tension (in kN) developed in the band is
(A) 1.88
(B) 3.56
(C) 6.12
(D) 11.56
Answer: (D)
Explanation:
