A. Base  measurement B. Bend  allowance C. Bend  tangent  line D. Flange E. Flat F. Leg G. Mold  line H. Radius I. Setback Figure  4B 4-55. What  type  of  development  refers  to an object that has surfaces on a flat  plane  of  projection? 1. 2. Radial  line Straight  line 3. Right  pyramid 4. Oblique  pyramid 4-56. In figure 8-9, part B, in the textbook, line E-l is the true length of what line(s)? IN ANSWERING QUESTIONS 4-49 THROUGH 4-53, 1. A-l CHOOSE  FROM  THE  METAL  BENDING  TERMS  IN 2. B-2 and D-4 FIGURE 4B THE TERM DESCRIBED IN THE 3. C-3 QUESTION. Some choices may not be used. 4. 0-1 and 02 4-49. 4-50. 4-51. 4-52. 4-53. 4-54. The outside diameter of the formed 4-57. What  type  of  pyramid  has  lateral part. edges  of  unequal  length? 1. A 1. Right 2. C 2. Oblique 3. D 3. Orthographic 4. E 4. Isometric The amount of metal used to make a bend. 1. A 2. B 3. C 4. D 4-58. In figure 8-11, view D, in the textbook,    the true length of the truncated pyramid is represented by the point between what lines? A  line  formed  by  extending  the outside surfaces of the leg and flange  so  they  intersect? 1. M-N 2. M-O 3. N-P 4. Y-Z 1. B 2. C 3. G 4. H QUESTIONS 4-59 THOUGH 4-61 DEAL WITH PARALLEL-LINE  DEVELOPMENT  AND  FIGURES 8-12 AND 8-13 IN THE TEXTBOOK. 4-59 In figure 8-12, view A, the width of the cylinder is equal to what other  of  its  measurements? The  distance  from  the  bend  tangent line to the mold point. 1. C 2. D 3. G 4. I 4-60 The shorter part of a formed angle. 1. B 2. D 3. E 4. F 1. Height 2. Length 3. Height  plus  the  seam  allowance 4. Circumference It is normal practice to place seams on the shortest side in sheet  metal  development. Which of the  following  forms  is  an exception? A surface is said to be developable if a thin sheet of flexible material can be wrapped smoothly about its surface. 4-61 1. Cylinder 2. Pyramid 3. Cone 4. Elbow In figure 8-12, view B, points of intersection  are  established  on  the development  for  what  purpose? 1. True 2. False 1. To  determine  its  true  length 2. To give it a curved shape 3. To  determine  its  actual  size 4. To ensure greater accuracy. 26