question_answer

             Which of the following statements hold good for a multi-collar thrust bearing carrying an axial dlW unit?                                  

1. Friction moment is independent of the number of collars.

2. The intensity of pressure is affected by the number of collars.

3. Coefficient of friction of the bearing surface is affected by the number of collars.

A) 1 and 2            

B) 1 and 3      

C) 2 and 3            

D) 1, 2 and 3