The following question is one that was provided by designers for
the  A  basic level exam. It is NOT included in the final published
test and is for reference only. The topic is Viewing Properties of
Printed Boards.

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          120  Which two factors are the primary influence for the
          layer assignment of a printed board 
          
          A. the bonding material used
          B. the requirements for solder mask
          C. the direction of conductor routing
          D. the relationship of core to prepreg
          E. the balanced distribution of copper
          F. the characteristics of the surface layer       
           
          Select the two most correct answers
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Previous QOD

          119  Why is it important to mark polarity of discrete
          components on the printed board?
         
          D. to reduce incorrect component placement
          
Resource: IPC-T-50 Specific Terms; IPC-D-275 para 4.1.1;5.5.3. 

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Please send comments, constructive critique, or suggestions to Lisa
Williams at [log in to unmask] 

Dieter Bergman