Which one of the following is not a recognised lubrication regime? Hydroviscous

Question

Which one of the following is not a recognised lubrication regime? Hydroviscous EHL Boundary Mixed Hydrostatic Which one of the following statements is consistent with Amontons' "laws of friction" for dry sliding? The force of friction acts normal to the sliding direction. The friction force increases linearly with sliding velocity. The friction force is independent of the true area of contact. The ratio of friction force to the normal force applied to the contact is constant during sliding. The normal force is independent of the friction force. Which one of the following statements is true? The true area of contact and the nominal area of contact are almost the same. Adhesion is the dominant mechanism of friction when very rough surfaces slide together. Stick slip behaviour arises because the dynamic coefficient of friction is larger than the static coefficient of friction. Adhesion is likely to be a problem with soft metal alloys of similar composition. The normal force is independent of the friction force.

Explanation / Answer

1-a

2-c

3-d

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