There are several popular methods for effecting global path planning such as visibility graphs, voronoi diagrams, cell decomposition and potential field methods select one of these and fully describe how it works and what its advantages and disadvantages may be.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

The maximum shear stress and maximum flexural stress occur at the same location along a beam subjected to a non-uniform bending load. a)-trune b)- false

A12 mm diameter shaft runs in a plain cylindrical bush 30 mm long that is located in an 18 mm diameter hole in a housing. the shaft-inner bush fit is h8 f and the outer bush-housing fit is h7-p6. make a fully cimensioned sketch of the bush with tolerances. find the maximum and minimum clearance or interference for both fits on the inner and outer diameters of the bush