QUESTIONS  4-62  THROUGH  4-69  DEAL  WITH RADIAL-LINE DEVELOPMENT OF CONICAL SURFACES. 4-62. 4-63. 4-64. 4-65. 4-66. 4-67. What two dimensions are necessary to  construct  a  radial-line development  of  a  conical  surface? 1. The true length of the right angle and the diameter of its base 2. The slant height of the cone and the diameter of the base 3. The slant height of the cone and  the  circumference  of  the base 4. The true length of the slant height of the cone and the angle of the cone The size of the sector is determined  by  what  dimensions? 1. The radius of the circle 2. The height of the cone 3. The sector minus the height of the cone 4. The  proportion  of  the  height  to the  base  diameter When  developing  a  regular  cone,  the element lines can be seen in their true length only under which of the following   conditions? 1. The viewer is looking at them at  right  angles 2. 3. The development is completed A base line is established 4. There is a projection to an auxiliary  view If a regular cone is truncated at an angle to the base, the inside shape  on  the  development  no  longer has a constant radius. 1. True 2. False When developing a regular cone, the true length settings for each element  are  taken  from  what view(s)? 1. Top 2. Side 3. Front  only 4. Front and side When the development of the sloping surface of a truncated cone is required, what view shows its true shape? 1. Orthographic 2. 3. Auxiliary Detail 4. Isometric 4-68. Oblique cones are generally developed  by  using  what  method? 1. 2. Straight-line   development 3. Radial-line   development Triangulation 4. Approximation 4-69. On an oblique cone, you should draw a true length diagram adjacent to the front view under which of the following   circumstances? 1. When it is necessary to find the  true  length  of  several edges  or  elements 2. When directed by notes and specifications 3. When drawing radial-line developments 4. When drawing straight-line developments QUESTIONS  4-70  THROUGH  4-73  DEAL  WITH TRANSITION  PIECES. 4-70. Nondevelopable surfaces require what  type  of  development? 1. Straight  line 2. Radial  line 3. Triangulation 4. Approximation 4-71. When a surface is developed from a series of triangular pieces laid side-by-side,    the  procedure  is known by what term? 1. Transitioning 2. Approximation 3. Paralleling 4. Triangulation 4-72. To develop a square-to-round transition  piece,  you  should  take what  step  first? 1. 2. Draw a true length diagram Draw the front view 3. Draw the top and side views 4. Develop the square piece 4-73. Rectangular-to-round transition pieces are developed in the same manner as square-to-round with which  of  the  following  exceptions? 1. All of the elements are centered on the same axis 2. The rectangular-to-round 3. requires  auxiliary  views All the elements are drawn to their  true  lengths 4. All the elements are of different   lengths 27