IPC A 610 LATEST 2026 CORE EXAM TEST QUESTIONS AND
ANSWERS RATED A+
✔✔Component Mounting - Leads Crossing Conductors
Not Established - Class 1
Defect - Class 2,3 - ✔✔Splitting and/or unraveling of sleeving
✔✔Component Mounting - Leads Crossing Conductors
Defect - Class 2,3 - ✔✔A component lead crossing an electrically noncommon
conductor violates minimum electrical clearance
✔✔Component Mounting - Hole Obstruction
Process Indicator - Class 2
Defect - Class 3 - ✔✔Parts and components obstruct solder flow onto the primary side
(solder destination side) lands of plated through-holes required to be soldered
✔✔Component Mounting - DIP/SIP Devices and Sockets
Acceptable - Class 1,2,3 - ✔✔Amount of tilt is limited by minimum lead protrusion and
height requirements
✔✔Component Mounting - DIP/SIP Devices and Sockets
Defect - Class 1,2,3 - ✔✔- Tilt of the component exceeds maximum component height
limits
- Lead protrusion does not meet acceptance requirements due to tilt of component
✔✔Component Mounting - Radial Leads - Vertical
Acceptable - Class 1,2,3 - ✔✔Component tilt does not violate minimum electrical
clearance
✔✔Component Mounting - Radial Leads - Vertical - Spacers
Acceptable (Supported Holes) - Class 1,2
Process Indicator (Supported Holes) - Class 3
Defect (Unsupported Holes) - Class 1,2,3 - ✔✔Spacer is not in full contact with
component and board
✔✔Component Mounting - Radial Leads - Vertical - Spacers
Not Established - Class 1
Defect - Class 2,3 - ✔✔Spacer is inverted
✔✔Component Mounting - Radial Leads - Horizontal
Acceptable - Class 1,2,3 - ✔✔Component in contact with board on at least one side
and/or surface
, ✔✔Component Mounting - Connectors - ✔✔In cases where an assembly connector is
composed of two or more identical connector modules, modules manufactured by
different suppliers shall not be mixed
✔✔Component Mounting - Connectors
Acceptable - Class 1,2,3 - ✔✔Board lock is fully inserted/snapped through the board
✔✔Component Mounting - Connectors
Defect - Class 1,2,3 - ✔✔- Component violates height requirements
- Board lock is not fully inserted/snapped into board
✔✔Component Mounting - Connectors - Right Angle
Acceptable - Class 2,3 - ✔✔- Connector-to-board spacing is equal to or less than 0.13
mm [0.005 in]
- Maximum misalignment is less than 0.25 mm [0.01 in] across the contact openings of
all connectors in the connector lineup
✔✔Component Mounting - Connectors - Right Angle
Defect - Class 1,2,3 - ✔✔Connector spacing affect mating of connector with assembling
requirements, e.g., face plates, bracket, mating connector, etc.
✔✔Defect Class 1 - ✔✔Defect Class 2 and 3 = Defect Class 1
✔✔Component Mounting - Connectors - Vertical Shrouded Pin Headers and Vertical
Receptacle Connectors
Acceptable - Class 2,3 - ✔✔Maximum misalignment between any two modules/pins in
the connector lineup is less than 0.25 mm [0.01 in]
✔✔Component Mounting - Connectors - Vertical Shrouded Pin Headers and Vertical
Receptacle Connectors
Defect - Class 2,3 - ✔✔Connector-to-board spacing is greater than 0.13 mm [0.005 in]
✔✔Component Mounting - Conductive Cases - ✔✔Where a potential for shorting
(violation of minimum electrical clearance) exists between conductive component
bodies, at least one of the bodies shall be protected by an insulator
✔✔Component Securing - Mounting Clips
Acceptable - Class 1,2,3 - ✔✔- The component is mount with the center of gravity within
the confines of the clip
- Spacing between the land and uninsulated component body does not violate minimum
electrical clearance
✔✔Component Securing - Mounting Clips
ANSWERS RATED A+
✔✔Component Mounting - Leads Crossing Conductors
Not Established - Class 1
Defect - Class 2,3 - ✔✔Splitting and/or unraveling of sleeving
✔✔Component Mounting - Leads Crossing Conductors
Defect - Class 2,3 - ✔✔A component lead crossing an electrically noncommon
conductor violates minimum electrical clearance
✔✔Component Mounting - Hole Obstruction
Process Indicator - Class 2
Defect - Class 3 - ✔✔Parts and components obstruct solder flow onto the primary side
(solder destination side) lands of plated through-holes required to be soldered
✔✔Component Mounting - DIP/SIP Devices and Sockets
Acceptable - Class 1,2,3 - ✔✔Amount of tilt is limited by minimum lead protrusion and
height requirements
✔✔Component Mounting - DIP/SIP Devices and Sockets
Defect - Class 1,2,3 - ✔✔- Tilt of the component exceeds maximum component height
limits
- Lead protrusion does not meet acceptance requirements due to tilt of component
✔✔Component Mounting - Radial Leads - Vertical
Acceptable - Class 1,2,3 - ✔✔Component tilt does not violate minimum electrical
clearance
✔✔Component Mounting - Radial Leads - Vertical - Spacers
Acceptable (Supported Holes) - Class 1,2
Process Indicator (Supported Holes) - Class 3
Defect (Unsupported Holes) - Class 1,2,3 - ✔✔Spacer is not in full contact with
component and board
✔✔Component Mounting - Radial Leads - Vertical - Spacers
Not Established - Class 1
Defect - Class 2,3 - ✔✔Spacer is inverted
✔✔Component Mounting - Radial Leads - Horizontal
Acceptable - Class 1,2,3 - ✔✔Component in contact with board on at least one side
and/or surface
, ✔✔Component Mounting - Connectors - ✔✔In cases where an assembly connector is
composed of two or more identical connector modules, modules manufactured by
different suppliers shall not be mixed
✔✔Component Mounting - Connectors
Acceptable - Class 1,2,3 - ✔✔Board lock is fully inserted/snapped through the board
✔✔Component Mounting - Connectors
Defect - Class 1,2,3 - ✔✔- Component violates height requirements
- Board lock is not fully inserted/snapped into board
✔✔Component Mounting - Connectors - Right Angle
Acceptable - Class 2,3 - ✔✔- Connector-to-board spacing is equal to or less than 0.13
mm [0.005 in]
- Maximum misalignment is less than 0.25 mm [0.01 in] across the contact openings of
all connectors in the connector lineup
✔✔Component Mounting - Connectors - Right Angle
Defect - Class 1,2,3 - ✔✔Connector spacing affect mating of connector with assembling
requirements, e.g., face plates, bracket, mating connector, etc.
✔✔Defect Class 1 - ✔✔Defect Class 2 and 3 = Defect Class 1
✔✔Component Mounting - Connectors - Vertical Shrouded Pin Headers and Vertical
Receptacle Connectors
Acceptable - Class 2,3 - ✔✔Maximum misalignment between any two modules/pins in
the connector lineup is less than 0.25 mm [0.01 in]
✔✔Component Mounting - Connectors - Vertical Shrouded Pin Headers and Vertical
Receptacle Connectors
Defect - Class 2,3 - ✔✔Connector-to-board spacing is greater than 0.13 mm [0.005 in]
✔✔Component Mounting - Conductive Cases - ✔✔Where a potential for shorting
(violation of minimum electrical clearance) exists between conductive component
bodies, at least one of the bodies shall be protected by an insulator
✔✔Component Securing - Mounting Clips
Acceptable - Class 1,2,3 - ✔✔- The component is mount with the center of gravity within
the confines of the clip
- Spacing between the land and uninsulated component body does not violate minimum
electrical clearance
✔✔Component Securing - Mounting Clips
