Starting friction is low in case of the ____________________ lubrication?
Correct answer: C. Hydrostatic
- A. Boundary
- B. Hydrodynamic
- C. Hydrostatic
- D. Mixed/semi-fluid
Explanation
Hydrostatic lubrication supplies the pressurised lubricant film externally, even before the surfaces begin moving, so starting friction is very low. Hydrodynamic lubrication needs relative motion to generate its supporting film.
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