Which statement about marking static parts during disassembly is accurate?

Which statement about marking static parts during disassembly is accurate?

• A. At 12 o'clock or 6 o'clock using the appropriate marking device
• B. At 3 o'clock or 9 o'clock
• C. On the top surface with a pencil
• D. On the bottom surface with chalk

Answer: (A)

When disassembling, you mark static parts to lock in their orientation so they can be reassembled exactly the same way. Placing marks at two opposite positions, such as 12 o’clock and 6 o’clock, gives clear, consistent references that stay visible regardless of how the parts are laid out or moved. Using an appropriate marking device ensures the marks are durable and won't contaminate or damage surfaces, so they remain legible during handling and reassembly. Marking at other positions or on surfaces that are easy to obscure, rub off, or get hidden during assembly—like a side at 3 o’clock or 9 o’clock, a pencil mark on the top, or chalk on the bottom—can lead to misalignment or marks being lost, which is why the 12 o’clock and 6 o’clock reference with a suitable marking method is preferred.

When disassembling, you mark static parts to lock in their orientation so they can be reassembled exactly the same way. Placing marks at two opposite positions, such as 12 o’clock and 6 o’clock, gives clear, consistent references that stay visible regardless of how the parts are laid out or moved. Using an appropriate marking device ensures the marks are durable and won't contaminate or damage surfaces, so they remain legible during handling and reassembly. Marking at other positions or on surfaces that are easy to obscure, rub off, or get hidden during assembly—like a side at 3 o’clock or 9 o’clock, a pencil mark on the top, or chalk on the bottom—can lead to misalignment or marks being lost, which is why the 12 o’clock and 6 o’clock reference with a suitable marking method is preferred.