In crater notation, what does L60 denote?

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Multiple Choice

In crater notation, what does L60 denote?

Crater notation uses a letter to show where the crater is located relative to the weld’s centerline, and a number to show how far from that centerline the crater sits. The letter L means left of the centerline, so L60 means the crater is offset 60 units to the left of the centerline. This is a positional cue, not a measure of size (diameter) or along-centerline distance, and not related to distance from a threshold. If the crater were on the right, you’d see a position indicator on the opposite side. The diameter or size would be specified differently, not by a left/right offset.

Crater notation uses a letter to show where the crater is located relative to the weld’s centerline, and a number to show how far from that centerline the crater sits. The letter L means left of the centerline, so L60 means the crater is offset 60 units to the left of the centerline. This is a positional cue, not a measure of size (diameter) or along-centerline distance, and not related to distance from a threshold. If the crater were on the right, you’d see a position indicator on the opposite side. The diameter or size would be specified differently, not by a left/right offset.

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