69) When a solids completely penetration another solids there will be two lines of intersection. These lines are sometimes called the line or........
a) Line of interpenetration
b) Curve of interpenetration
c) Solids of interpenetration
d) All of these
70) Use of penetration curve is.......
a) Sheet metal work
b) Fitting shop
c) Fabricating work
d) Foundry shop
71) Methods of determining the line of intersection between surface of two interpenetration.........
a) Approximate method & radial line method
b) Line method and cutting plane method
c) Triangulation method and parallel line method
d) None of these
72) Example of interpenetration is..........
a) Two prism intersection
b) Cylinder and prism intersection
c) Cone and cylinders intersection
d) All of these