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