IPC CID Exam Question and Answer
(2026/2027) | Updated Questions and
Correct Answers | A+ Verified
• What do performance classes reflect? -✓✓ Progressive increases in
sophistication, functional performance, and frequency/intensity of inspection or
stress testing
• What are the three performance classes? -✓✓ 1-General Electronics 2-
Dedicated Service 3-High reliability
• Who is the end user? -✓✓ 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? -✓✓ The end user
• What would be in class 3 performance? -✓✓ Military, medical, etc.
• What is ambient temperature? -✓✓ The surrounding environment that comes
into contact with your product
• What do producibility levels tell us? -✓✓ Increasing complexity of tooling,
materials, and processing. Yields increase as costs decrease, etc.
• What increases with each producibility level? -✓✓ Sophisitication
, • What is the zaxis aspect ratio? -✓✓ 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? -✓✓ Special keep out or keep in
areas of the board.
• Where should high frequency circuits be placed? -✓✓ NEar the connector
• Where should filtering caps be placed? -✓✓ Near the source of power/gnd (at
the connector)
• What is least important to route in analog circuits? -✓✓ Power and ground
• What is a major consideration for component placement? -✓✓ Will backwards
compatibility be necessary?
• What is Ohm's law? -✓✓ V=IR
• What is an important basic rule for a designer of a board? -✓✓ Terminate
unused logic pins with a pull-down or pull-up resistor.
• What product safety testing regards flame retardants? -✓✓ UL 94
• How thick is half ounce copper? -✓✓ 0.7 mils (17 um thick)
(2026/2027) | Updated Questions and
Correct Answers | A+ Verified
• What do performance classes reflect? -✓✓ Progressive increases in
sophistication, functional performance, and frequency/intensity of inspection or
stress testing
• What are the three performance classes? -✓✓ 1-General Electronics 2-
Dedicated Service 3-High reliability
• Who is the end user? -✓✓ 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? -✓✓ The end user
• What would be in class 3 performance? -✓✓ Military, medical, etc.
• What is ambient temperature? -✓✓ The surrounding environment that comes
into contact with your product
• What do producibility levels tell us? -✓✓ Increasing complexity of tooling,
materials, and processing. Yields increase as costs decrease, etc.
• What increases with each producibility level? -✓✓ Sophisitication
, • What is the zaxis aspect ratio? -✓✓ 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? -✓✓ Special keep out or keep in
areas of the board.
• Where should high frequency circuits be placed? -✓✓ NEar the connector
• Where should filtering caps be placed? -✓✓ Near the source of power/gnd (at
the connector)
• What is least important to route in analog circuits? -✓✓ Power and ground
• What is a major consideration for component placement? -✓✓ Will backwards
compatibility be necessary?
• What is Ohm's law? -✓✓ V=IR
• What is an important basic rule for a designer of a board? -✓✓ Terminate
unused logic pins with a pull-down or pull-up resistor.
• What product safety testing regards flame retardants? -✓✓ UL 94
• How thick is half ounce copper? -✓✓ 0.7 mils (17 um thick)
