ASVAB · Measuring and Marking

What does a level tell you about a surface?

Reviewed by Jordan Morley, Editorial Lead at 247SimpleTests. Written by the 247SimpleTests Editorial Team from the official source material cited on every question.

Correct answer

Whether it is perfectly horizontal (level) or vertical (plumb)

A Whether it is perfectly horizontal (level) or vertical (plumb)
B Its weight
C Its temperature
D Its length

Why this is the answer

A level indicates whether a surface is truly horizontal ('level') or truly vertical ('plumb'). It works using a sealed vial containing liquid and an air bubble; when the bubble sits centered between the marked lines, the surface is level or plumb. Levels are essential for hanging shelves, installing fixtures, laying tile, and framing so that surfaces are straight and even. A tape measure handles length, and a square checks 90-degree angles. Knowing the level's job — checking for horizontal and vertical alignment — is a common measuring-tool topic on the Shop subtest.

Source: ASVAB SI, Levels

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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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What does a level tell you about a surface?

Why this is the answer

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About this topic: Measuring and Marking

Related questions

On a standard ruler/tape measure marked in inches, what does the largest tick between whole inches represent?

What is a combination square used for?

What is the purpose of a level when installing a cabinet or shelf?

A micrometer is used to measure dimensions with greater accuracy than a standard ruler. What is a micrometer's typical precision?

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