Question

A band brake having a bandwidth of 90 mm, drum diameter of 300 mm, coefficient of friction of 0.3 and an angle of wrap of $270\degree$ is required to create a friction torque of 1000 Nm. The maximum tension (in kN) developed in the band is:

• A. 10.2 kN
• B. 8.8 kN
• C. 3.2 kN
• D. 5.8 kN

Answer 1

Answer: (B)

8.8 kN

Answer 2

The correct option is (B): 8.8 kN