ANGULAR SPEED OF ROTATION OF THE SHAFT WHICH OF THE STATEMENTS GIVE...

3. Angular speed of rotation of the shaft

Which of the statements given above are correct?

(a) 1,2 and 3

(b) Only 1 and 2

(c) Only 2 and 3

(d) Only 1 and 3

IES-34Ans. (b) radius of friction circle =

f r

×

IES-35. In a journal bearings, the radius of the friction circle increases with the

increase in

[IES-1997]

(a) Load

(b) Radius of the journal

(c) Speed of the journal

(d) Viscosity of the lubricant

IES-35Ans. (b)

IES-36. Consider the following statements:

[IES 2007]

For a journal rotating in a bearing under film lubrication conditions, the

frictional resistance is