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A) IEC
B) ANSI
C) ISO
D) IETF
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A decimal dimension may be rounded off b...View Answer
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A decimal dimension may be rounded off b...
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Two sets of drafting standards are accepted worldwide: ANSI (inch-metric) and ISO (metric). Almost all practices (dimensioning; line types and thicknesses; welding symbols; drawing sheet sizes; GD&T; screw threads; surface textures; finish symbols; etc.) are now the same in either system or roughly comparable. Most major technical differences are beyond the scope of this text. Of course, the most obvious difference between the two is that U.S. multi-view drawings use third-angle projection. Europe and Asia follow ISO practices and view objects from first-angle projection. ANSI recommends decimal-inch dimensioning and notes on U.S. drawings to be unidirectional. ISO default practice allows aligned decimal millimeter dimensions. Both standards are used throughout North America.
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Two sets of drafting standards are accepted worldwide: ANSI (inch-metric) and ISO (metric). Almost all practices (dimensioning; line types and thicknesses; welding symbols; drawing sheet sizes; GD&T; screw threads; surface textures; finish symbols; etc.) are now the same in either system or roughly comparable. Most major technical differences are beyond the scope of this text. Of course, the most obvious difference between the two is that U.S. multi-view drawings use third-angle projection. Europe and Asia follow ISO practices and view objects from first-angle projection. ANSI recommends decimal-inch dimensioning and notes on U.S. drawings to be unidirectional. ISO default practice allows aligned decimal millimeter dimensions. Both standards are used throughout North America.
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The International Organization for Standardization (ISO) recommends the use of a projection symbol on drawings that are produced in one country for use among many countries. The projection symbols are intended to promote the accurate exchange of technical information through drawings. The ISO projection symbol, the notation on tolerances, and information on whether metric and/or inch dimensions are used on the drawing should appear as notes either within the title block or adjacent to it.
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The International Organization for Standardization (ISO) recommends the use of a projection symbol on drawings that are produced in one country for use among many countries. The projection symbols are intended to promote the accurate exchange of technical information through drawings. The ISO projection symbol, the notation on tolerances, and information on whether metric and/or inch dimensions are used on the drawing should appear as notes either within the title block or adjacent to it.
A) IEC
B) ANSI
C) ISO
D) IETF
Correct Answer
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The practice for unilateral mi...View Answer
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The practice for unilateral mi...
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A) projection symbol
B) reduction symbol
C) limit symbol
D) accuracy symbol
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A) deka
B) milli
C) hecto
D) kilo
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A) staffing
B) time
C) quality of materials
D) degree of accuracy
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When dimensions on a drawing need to be divided, the part designer tries to round off the dimensions to the nearest even decimal. This practice permits parts to be economically machined to tolerances within a required number of decimal places.
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When dimensions on a drawing need to be divided, the part designer tries to round off the dimensions to the nearest even decimal. This practice permits parts to be economically machined to tolerances within a required number of decimal places.
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Finding equivalent dimensional...View Answer
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Finding equivalent dimensional...
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