IPC CID UPDATED ACTUAL Exam
Questions and CORRECT Answers
What do performance classes reflect? - CORRECT ANSWER - Progressive increases in
sophistication, functional performance, and frequency/intensity of inspection or stress testing
What are the three performance classes? - CORRECT ANSWER - 1-General Electronics
2-Dedicated Service 3-High reliability
Who is the end user? - CORRECT ANSWER - The end user is the individual or agency
that contracts the printed board or assembly to be designed and manufactured
Who determines the class of a product? - CORRECT ANSWER - The end user
What would be in class 3 performance? - CORRECT ANSWER - Military, medical, etc.
What is ambient temperature? - CORRECT ANSWER - The surrounding environment that
comes into contact with your product
What do producibility levels tell us? - CORRECT ANSWER - Increasing complexity of
tooling, materials, and processing. Yields increase as costs decrease, etc.
What increases with each producibility level? - CORRECT ANSWER - Sophisitication
What is the zaxis aspect ratio? - CORRECT ANSWER - Ratio between the nominal
thickness of the board and the smallest drill size.
What is the most important special consideration in terms of electrical functionality that a
designer must consult the EE? - CORRECT ANSWER - Special keep out or keep in areas
of the board.
, Where should high frequency circuits be placed? - CORRECT ANSWER - NEar the
connector
Where should filtering caps be placed? - CORRECT ANSWER - Near the source of
power/gnd (at the connector)
What is least important to route in analog circuits? - CORRECT ANSWER - Power and
ground
What is a major consideration for component placement? - CORRECT ANSWER - Will
backwards compatibility be necessary?
What is Ohm's law? - CORRECT ANSWER - V=IR
What is an important basic rule for a designer of a board? - CORRECT ANSWER -
Terminate unused logic pins with a pull-down or pull-up resistor.
What product safety testing regards flame retardants? - CORRECT ANSWER - UL 94
How thick is half ounce copper? - CORRECT ANSWER - 0.7 mils (17 um thick)
What is the subtractive process? - CORRECT ANSWER - Unwanted copper is etched
away
What is the additive process? - CORRECT ANSWER - Only wanted copper is added to
the board
What must happen immediately after drilling the holes in the boards? - CORRECT
ANSWER - Hole deburring
Questions and CORRECT Answers
What do performance classes reflect? - CORRECT ANSWER - Progressive increases in
sophistication, functional performance, and frequency/intensity of inspection or stress testing
What are the three performance classes? - CORRECT ANSWER - 1-General Electronics
2-Dedicated Service 3-High reliability
Who is the end user? - CORRECT ANSWER - The end user is the individual or agency
that contracts the printed board or assembly to be designed and manufactured
Who determines the class of a product? - CORRECT ANSWER - The end user
What would be in class 3 performance? - CORRECT ANSWER - Military, medical, etc.
What is ambient temperature? - CORRECT ANSWER - The surrounding environment that
comes into contact with your product
What do producibility levels tell us? - CORRECT ANSWER - Increasing complexity of
tooling, materials, and processing. Yields increase as costs decrease, etc.
What increases with each producibility level? - CORRECT ANSWER - Sophisitication
What is the zaxis aspect ratio? - CORRECT ANSWER - Ratio between the nominal
thickness of the board and the smallest drill size.
What is the most important special consideration in terms of electrical functionality that a
designer must consult the EE? - CORRECT ANSWER - Special keep out or keep in areas
of the board.
, Where should high frequency circuits be placed? - CORRECT ANSWER - NEar the
connector
Where should filtering caps be placed? - CORRECT ANSWER - Near the source of
power/gnd (at the connector)
What is least important to route in analog circuits? - CORRECT ANSWER - Power and
ground
What is a major consideration for component placement? - CORRECT ANSWER - Will
backwards compatibility be necessary?
What is Ohm's law? - CORRECT ANSWER - V=IR
What is an important basic rule for a designer of a board? - CORRECT ANSWER -
Terminate unused logic pins with a pull-down or pull-up resistor.
What product safety testing regards flame retardants? - CORRECT ANSWER - UL 94
How thick is half ounce copper? - CORRECT ANSWER - 0.7 mils (17 um thick)
What is the subtractive process? - CORRECT ANSWER - Unwanted copper is etched
away
What is the additive process? - CORRECT ANSWER - Only wanted copper is added to
the board
What must happen immediately after drilling the holes in the boards? - CORRECT
ANSWER - Hole deburring
