PCB Designing Fundamentals MCQ Quiz - Multiple Choice Questions & Answers Page 2

11. The solder paste files are generally produced

1. In the assembly file
2. In the fabrication files
3. Manually drawn
4. As part of the bill of materials

12. The use of 3D component models in the PCB layout can assist with

1. Electrical clearance
2. Component clearance
3. All of the above
4. None of the above

13. Though schematic tools do have to use a grid for pin connectivity, in theory, the grid used in a schematic is

1. In metric (mm)
2. In imperial (mils)
3. Both A and B interchangeably
4. Dimensionless

14. True Statement Statementor False Statement: ODB++ and Gerbers are proprietary formats

1. True Statement
2. False Statement

15. What is the best method to provide a unique number for each component in the library?

1. Use the manufacturers part number
2. Use the vendors part number
3. Use a part number that is assign by the company you work for
4. Use a part number that you make up as you go

16. When is the earliest time one should communicate the bill of materials:

1. After fabrication has been started
2. After the boards have been fabricated
3. When the schematics are completed
4. After the layout is complete

17. When writing a requirement

1. The use of the word and is okay
2. The use of the word or is okay
3. Both of the above
4. None of the above

18. When writing a requirement, the following word should be used to denote a requirement:

1. Should
2. Would
3. Can
4. Shall

19. Which of the following drill document(s) must be provided to the fabricator to program their drilling equipment?

1. Drill Plot
2. Drill Drawing
3. NC Drill file
4. All of the above

20. Which of the following is not taken into consideration when calculating the characteristic impedance for each layer?

1. Trace width
2. Trace height
3. Trace length
4. Distance of the trace to a plane