2-37.What stretchouts are developed bythe radial-line method?1.A and B2.A and C3.C and D4.C and E2-38.Triangulationwhat pattern?1. A2. C3. D4. E2-39.What patternor roll intois used to developwill ultimately folda cylinder?1. A2. C3. D4. EIN ANSWERING QUESTIONS 2-40 THROUGH 2-42,REFER TO FIGURE 2-52 IN THE TEXTBOOK.2-40.The radial line method is used todevelop a frustrum of a right cone.1.True2.False2-41.The stretchout pattern of thefrustrum has been stepped off intohow many spaces?1. 62. 73. 124. 142-42.The length of the numbered lineon the stretchout from 1 to 1is equal to what measurement?1.Height of the frustrum2.Circumference of the baseof the cone3.Radius of the top of thefrustrum4.Slant height of the frustrumIN ANSWERING QUESTIONS 2-43 THROUGH 2-45,ASSUME THAT YOU ARE TO DRAW A PATTERN OFA TRANSITION PIECE FOR A SQUARE DUCT ANDA SMALLER ROUND DUCT, AS SHOWN IN TEXTBOOKFIGURE 2-53.2-43.What view of the transition pieceshould you draw first?1. A2. B3. C4. D2-44.2-45.2-46.2-47.2-48.2-49.What triangle should you developfirst in E?1.B3 and 42.B4 and 5 or C7 and 83.D7 and 64.A2 and 1 or B2 and 1You have constructed perpendicularbisectors of AB, BC, CD, and DA inE and have established the locationof point 0_{0}What step should youperform next in order to check theoverall symmetry of your transitionpiece?1.Swing length D5 from point 52.Swing an arc of radius A2 frompoint A3.Swing arcs A and B from point O4.Swing arcs from point G thatwill intersect at point OLearning Objective:Identifythe various sheet-metal jointsand locking methods used in thefabrication of sheet-metalsections.When fabricating a wired edge toa cylinder, you must add how muchedging to a pattern?1.1 1/2 times the thicknessof the metal2.2 1/2 times the diameterof the wire to be used3.Twice the diameter of theupper burring roller4.One half of the diameterof the wire to be usedIn the fabrication of rectangularduct, what seam is used most often?1.Grooved2.Pittsburgh lock3.Lap4.StandingWhen laying out a pattern, youconsider what feature last?1.Seams2.Laps3.Notches4.EdgesWhat type of notch is used on acorner when a single-hemmed edgeis to meet a 90-degree angle?1.Square2.Slant3. V4.Wire12