57) Surface of solid are laid out on a plane the figure obtained is called its........
a) Interpenetration
b) Development
c) Intersection
d) None of these
58) Development of surfaces is essential in.........
a) Foundry shop
b) Sheet metal work
c) Fitting shop
d) None of these
59) Which method of development used in transition pieces?
a) Parallel diameter
b) Radial line method
c) Triangulation method
d) Approximate method
60) Which method of development used in pyramids and cones.........
a) Radial line method
b) Parallel line method
c) Approximate method
d) Triangulation method
61) Parallel line method is used in..........
a) Prism
b) Cylinder
c) Cubes
d) All of these
62) Which method of development used in surface as sphere, paraboloid, ellipsoid, hyperboloid, and helicoids
a) Radial line method
b) Triangulation method
c) Approximate method
d) Parallel line method
63) Zone method and lune method is used in development of........
a) Prisms
b) Cones
c) Sphere
d) Pyramids
64) Calculation the subtended angle Ɵ by the formula Ɵ =3600 ͓ radius of the base circle
a) Length of axis
b) Slant height
c) Radius of axis
d) None of these
