Briefly describe the ANSI and ISO drafting standards.
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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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List four types of cuttings and provide an explanation for each
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For fastening gypsum board to wood framing or furring, the preferred gypsum drywall screws are Type
_____ a. B b. W c. S d. G
A preliminary steering inspection reveals that the steering wheel has nearly 1/2 inch of movement in either direction before the pitman arm begins to move. All of the following could cause this problem EXCEPT:
a. Coupling joints. b. U-joints. c. Tight or seized shaft bearing. d. Worn or out-of-adjustment steering gear.
In Canada, tire pressure monitoring systems are not mandatory on post-2008 vehicles
a. true b. false