Question

1. choose five marking out tools.

for each tool:

• name it.
• write which reference figure it is.
• briefly describe the tasks it is used for.

marking out tools

tool name | reference letter | tasks tool is used for

Explanation:

Identify marking out tools

Using the Hand Tools Identification knowledge point, we analyze the seven tools shown in the reference figures (A to G) to select five that are primarily used for marking out (laying out measurements and lines on workpieces before cutting or machining):

• A: Scriber (used to scratch lines on metal).
• B: Protractor / Depth gauge (used to measure and mark angles).
• C: Try square / Engineer's square (used to mark perpendicular lines).
• D: Odd leg calipers / Hermaphrodite calipers (used to scribe lines parallel to an edge).
• E: Steel rule (used to measure and guide straight lines).
• F: Dividers (used to scribe circles, arcs, or step off distances).
• G: Center punches (used to mark the center of holes before drilling).

We will select five distinct marking out tools from this list to complete the table: Scriber (A), Try square (C), Odd leg calipers (D), Dividers (F), and Center punch (G).

Describe tool functions

We define the name, reference letter, and primary task for each of the five selected tools:

1. Scriber (A): Used to scratch clear, precise lines on metal surfaces.
2. Try square (C): Used to mark lines at 90 degrees to a straight edge.
3. Odd leg calipers (D): Used to scribe lines parallel to a guided edge.
4. Dividers (F): Used to scribe arcs, circles, and transfer measurements.
5. Center punch (G): Used to create a small indentation for drill bit alignment.

Answer:

Tool name	Reference Letter	Tasks tool is used for
Try square	C	Marking out lines perpendicular (\(90^\circ\)) to an edge
Odd leg calipers	D	Scribing lines parallel to a datum edge
Dividers	F	Scribing circles, arcs, and stepping off equal distances
Center punch	G	Making indentations to guide drill bits