Precision Tool for Small Linear Measurements

Steps:

• Assess object size: Clothes peg height is small (typically 5-10 cm), needing sub-millimeter precision.
• Review instrument capabilities: Tape for rough long distances; metre rule for general lengths to 1 mm; micrometer for tiny lengths to 0.01 mm; cylinder for liquids.
• Match to need: Select tool with finest resolution for accurate height.

Why C is correct:

• Micrometer screw gauge measures lengths to 0.01 mm via precise screw mechanism, ensuring high accuracy for small dimensions per standard metrology definitions.

Why the others are wrong:

• A: Tape measure provides only rough estimates (to 1 cm), unsuitable for precise small-scale work.
• B: Metre rule offers 1 mm resolution, too coarse for accurate sub-millimeter height.
• D: Measuring cylinder determines volume displacement, irrelevant for linear height.

Final answer: C