Consider the following statements: [IES 2007]
For a journal rotating in a bearing under film lubrication conditions, the frictional resistance is-
1. Proportional to the area of contact
2. Proportional to the viscosity of lubricant
3. Proportional to the speed of rotation
4. Independent of the pressure
Which of the statements given above are correct?
(a) 1, 2, 3 and 4 (b) 1 and 4 only
(c) 2, 3 and 4 only (d) 2 and 3 only
For a journal rotating in a bearing under film lubrication conditions, the frictional resistance is-
1. Proportional to the area of contact
2. Proportional to the viscosity of lubricant
3. Proportional to the speed of rotation
4. Independent of the pressure
Which of the statements given above are correct?
(a) 1, 2, 3 and 4 (b) 1 and 4 only
(c) 2, 3 and 4 only (d) 2 and 3 only