Consider the following statements:
The b3earing characteristic number is
1. Dimensionless
2. Inversely proportional to speed
3. Directly proportional to viscosity
4. Independent of journal radius.
Which of the statements is/are correct
(a) 2 and 3 only (b) 1 and 3 only
(c) 1 only (d) 1,2,3 and 4