1. A PCB has 2 signal layers, a split power layer and one ground layer. It also has two solder mask and two silkscreen layers. Is the board classified as: A) a 4 layer board? B) a 5 layer board? C) a 7 layer board? D) a 8 layer board? E) a 9 layer board? A) 4 layers Only the conductive layers count. A split power layer is still one layer.

2. What would be the layer number for the solder mask on the secondary layer? A) layer 4 B) layer 5 C) layer 6 D) layer 7 E) layer 8 A) layer 6

3. What would be the layer number for the silkscreen on the primary layer? A) layer 4 B) layer 5 C) layer 6 D) layer 7 E) layer 8 A) layer 7