ASVAB · Measuring and Marking

Which tool provides the most precise measurement of small dimensions, like the diameter of a bolt?

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Correct answer

A caliper (such as a vernier or digital caliper)

A A level
B A tape measure
C A caliper (such as a vernier or digital caliper)
D A yardstick

Why this is the answer

A CALIPER (vernier, dial, or digital) provides PRECISE measurement of small dimensions — including outside dimensions (like a bolt's diameter), inside dimensions, and depth — often to thousandths of an inch or hundredths of a millimeter. ASVAB Shop Information tests measuring tools. A TAPE MEASURE or YARDSTICK is for larger, less precise measurements. A MICROMETER is even more precise for very small measurements. Calipers are essential for machining and precision work. Knowing the caliper measures small dimensions precisely is commonly tested.

Source: ASVAB Shop Information — Calipers

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About this topic: Measuring and Marking

Measuring and marking questions cover rulers, tape measures, calipers, micrometers, squares and levels, including reading fractions of an inch and checking that something is square, level or plumb. This is one of 10 Shop Information questions on measuring and marking, each with a full explanation on a single study page.

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Which tool provides the most precise measurement of small dimensions, like the diameter of a bolt?

Why this is the answer

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About this topic: Measuring and Marking

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