A student marks a line with a scriber, but the line is barely visible. What might be the most likely cause?
Scriber tip is blunt or worn out
To determine the reason why a line marked by a student using a scriber is barely visible, we need to evaluate the potential causes listed and identify the most probable one.
- Metal surface is too oily: If the surface was oily, the scriber might not effectively scratch the surface, making the line less visible. However, it is more likely that the scriber would still leave a mark through the oil, albeit less prominently.
- Scriber tip is blunt or worn out: A scriber with a blunt or worn-out tip would not create a distinct line on the metal surface, as it would fail to cut effectively into the surface material. This is the most likely cause of the line being barely visible.
- Measuring tape was used instead: A measuring tape does not mark metal surfaces, so this option is irrelevant to the use of a scriber.
- Ruler engravings are faint: The engravings on a ruler do not impact the marking capability of a scriber. They are unrelated to the visibility of the line made with a scriber.
Based on the analysis, the most reasonable cause of a barely visible line is that the scriber tip is blunt or worn out. This prevents it from adequately scratching the metal surface.
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Important Questions from Marking and Marking Tools
What is the point angle of prick punch which is used for making light punch marks?
The point angle of scriber is
The angle of the punch used for witness marks is
A fitter is tasked with marking accurate parallel lines on a metal plate before cutting. He must select a divider with tips made of a suitable material for this job. Which divider tip material would be most appropriate to use to avoid rapid wear and ensure precise marking on the metal surface?
In a workshop, a mechanic needs to determine the length of the diagonal support for a rectangular metal plate with sides of 9 cm and 12 cm. Which value represents the correct length of the diagonal support needed?
