In hydrodynamic lubrication, film thickness remains unaffected by chan – McqOptions

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1.	In hydrodynamic lubrication, film thickness remains unaffected by change in speeds.
A.	True
B.	Increase with increase in speed
C.	Decrease with increase in speed
D.	Disappear as the speed tends to infinty
Answer» C. Decrease with increase in speed

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For a hydrostatic thrust bearing,Thrust load=450kN, shaft speed=730rpm, shaft diameter=450mm, recess diameter=310mm,film thickness=0.15mm,viscosity of lubricant=160SUS and specific gravity=0.86.
For a hydrostatic thrust bearing,Thrust load=450kN, shaft speed=730rpm, shaft diameter=450mm, recess diameter=310mm, film thickness=0.15mm, viscosity of lubricant=160SUS and specific gravity=0.86.
In hydrodynamic lubrication, film thickness remains unaffected by change in speeds.
Which of the following are not true for petroff s equation?
Viscosity is defined as the external resistance offered by a fluid to change its shape or relative motion of its parts.